^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Trivial changes by Alan Cox to add the LFS fixes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Trivial Changes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Rights granted to Hans Reiser to redistribute under other terms providing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * he accepts all liability including but not limited to patent, fitness
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * for purpose, and direct or indirect claims arising from failure to perform.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * NO WARRANTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "reiserfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "acl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "xattr.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/backing-dev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/exportfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/quotaops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/vfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/namei.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/crc32.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct file_system_type reiserfs_fs_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static const char reiserfs_3_5_magic_string[] = REISERFS_SUPER_MAGIC_STRING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static const char reiserfs_3_6_magic_string[] = REISER2FS_SUPER_MAGIC_STRING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static const char reiserfs_jr_magic_string[] = REISER2FS_JR_SUPER_MAGIC_STRING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int is_reiserfs_3_5(struct reiserfs_super_block *rs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return !strncmp(rs->s_v1.s_magic, reiserfs_3_5_magic_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) strlen(reiserfs_3_5_magic_string));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int is_reiserfs_3_6(struct reiserfs_super_block *rs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return !strncmp(rs->s_v1.s_magic, reiserfs_3_6_magic_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) strlen(reiserfs_3_6_magic_string));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int is_reiserfs_jr(struct reiserfs_super_block *rs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return !strncmp(rs->s_v1.s_magic, reiserfs_jr_magic_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) strlen(reiserfs_jr_magic_string));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static int is_any_reiserfs_magic_string(struct reiserfs_super_block *rs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) return (is_reiserfs_3_5(rs) || is_reiserfs_3_6(rs) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) is_reiserfs_jr(rs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static int reiserfs_remount(struct super_block *s, int *flags, char *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int reiserfs_sync_fs(struct super_block *s, int wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * Writeback quota in non-journalled quota case - journalled quota has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * no dirty dquots
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dquot_writeback_dquots(s, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (!journal_begin(&th, s, 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) if (!journal_end_sync(&th))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) reiserfs_flush_old_commits(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static void flush_old_commits(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct reiserfs_sb_info *sbi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct super_block *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) sbi = container_of(work, struct reiserfs_sb_info, old_work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) s = sbi->s_journal->j_work_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * We need s_umount for protecting quota writeback. We have to use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * trylock as reiserfs_cancel_old_flush() may be waiting for this work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * to complete with s_umount held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (!down_read_trylock(&s->s_umount)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* Requeue work if we are not cancelling it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) spin_lock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (sbi->work_queued == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) queue_delayed_work(system_long_wq, &sbi->old_work, HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) spin_unlock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) spin_lock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* Avoid clobbering the cancel state... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (sbi->work_queued == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) sbi->work_queued = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) spin_unlock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) reiserfs_sync_fs(s, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) up_read(&s->s_umount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) void reiserfs_schedule_old_flush(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct reiserfs_sb_info *sbi = REISERFS_SB(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) unsigned long delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * Avoid scheduling flush when sb is being shut down. It can race
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * with journal shutdown and free still queued delayed work.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (sb_rdonly(s) || !(s->s_flags & SB_ACTIVE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) spin_lock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (!sbi->work_queued) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) delay = msecs_to_jiffies(dirty_writeback_interval * 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) queue_delayed_work(system_long_wq, &sbi->old_work, delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) sbi->work_queued = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) spin_unlock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) void reiserfs_cancel_old_flush(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) struct reiserfs_sb_info *sbi = REISERFS_SB(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) spin_lock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* Make sure no new flushes will be queued */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) sbi->work_queued = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) spin_unlock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) cancel_delayed_work_sync(&REISERFS_SB(s)->old_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static int reiserfs_freeze(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) reiserfs_cancel_old_flush(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) if (!sb_rdonly(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) int err = journal_begin(&th, s, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) reiserfs_block_writes(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) reiserfs_block_writes(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) journal_end_sync(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static int reiserfs_unfreeze(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct reiserfs_sb_info *sbi = REISERFS_SB(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) reiserfs_allow_writes(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) spin_lock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* Allow old_work to run again */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) sbi->work_queued = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) spin_unlock(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) extern const struct in_core_key MAX_IN_CORE_KEY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * this is used to delete "save link" when there are no items of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * file it points to. It can either happen if unlink is completed but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * "save unlink" removal, or if file has both unlink and truncate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * pending and as unlink completes first (because key of "save link"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * protecting unlink is bigger that a key lf "save link" which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * protects truncate), so there left no items to make truncate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) * completion on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int remove_save_link_only(struct super_block *s,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct reiserfs_key *key, int oid_free)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /* we are going to do one balancing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) err = journal_begin(&th, s, JOURNAL_PER_BALANCE_CNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) reiserfs_delete_solid_item(&th, NULL, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (oid_free)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /* removals are protected by direct items */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) reiserfs_release_objectid(&th, le32_to_cpu(key->k_objectid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) return journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int reiserfs_quota_on_mount(struct super_block *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * Look for uncompleted unlinks and truncates and complete them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * Called with superblock write locked. If quotas are enabled, we have to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * release/retake lest we call dquot_quota_on_mount(), proceed to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * schedule_on_each_cpu() in invalidate_bdev() and deadlock waiting for the per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * cpu worklets to complete flush_async_commits() that in turn wait for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) * superblock write lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static int finish_unfinished(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) INITIALIZE_PATH(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) struct cpu_key max_cpu_key, obj_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct reiserfs_key save_link_key, last_inode_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) struct item_head *ih;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct buffer_head *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) int item_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) char *item;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) int done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int truncate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int ms_active_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int quota_enabled[REISERFS_MAXQUOTAS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /* compose key to look for "save" links */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) max_cpu_key.version = KEY_FORMAT_3_5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) max_cpu_key.on_disk_key.k_dir_id = ~0U;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) max_cpu_key.on_disk_key.k_objectid = ~0U;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) set_cpu_key_k_offset(&max_cpu_key, ~0U);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) max_cpu_key.key_length = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) memset(&last_inode_key, 0, sizeof(last_inode_key));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* Needed for iput() to work correctly and not trash data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if (s->s_flags & SB_ACTIVE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) ms_active_set = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) ms_active_set = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) s->s_flags |= SB_ACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /* Turn on quotas so that they are updated correctly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) for (i = 0; i < REISERFS_MAXQUOTAS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) quota_enabled[i] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if (REISERFS_SB(s)->s_qf_names[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (sb_has_quota_active(s, i)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) quota_enabled[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) ret = reiserfs_quota_on_mount(s, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) reiserfs_warning(s, "reiserfs-2500",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) "cannot turn on journaled "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) "quota: error %d", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) REISERFS_SB(s)->s_is_unlinked_ok = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) while (!retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) retval = search_item(s, &max_cpu_key, &path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (retval != ITEM_NOT_FOUND) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) reiserfs_error(s, "vs-2140",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) "search_by_key returned %d", retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) bh = get_last_bh(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) item_pos = get_item_pos(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (item_pos != B_NR_ITEMS(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) reiserfs_warning(s, "vs-2060",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) "wrong position found");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) item_pos--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) ih = item_head(bh, item_pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (le32_to_cpu(ih->ih_key.k_dir_id) != MAX_KEY_OBJECTID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /* there are no "save" links anymore */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) save_link_key = ih->ih_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) if (is_indirect_le_ih(ih))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) truncate = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) truncate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* reiserfs_iget needs k_dirid and k_objectid only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) item = ih_item_body(bh, ih);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) obj_key.on_disk_key.k_dir_id = le32_to_cpu(*(__le32 *) item);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) obj_key.on_disk_key.k_objectid =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) le32_to_cpu(ih->ih_key.k_objectid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) obj_key.on_disk_key.k_offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) obj_key.on_disk_key.k_type = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) pathrelse(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) inode = reiserfs_iget(s, &obj_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (IS_ERR_OR_NULL(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * the unlink almost completed, it just did not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * manage to remove "save" link and release objectid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) reiserfs_warning(s, "vs-2180", "iget failed for %K",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) &obj_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) retval = remove_save_link_only(s, &save_link_key, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (!truncate && inode->i_nlink) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* file is not unlinked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) reiserfs_warning(s, "vs-2185",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) "file %K is not unlinked",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) &obj_key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) retval = remove_save_link_only(s, &save_link_key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) depth = reiserfs_write_unlock_nested(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) dquot_initialize(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) reiserfs_write_lock_nested(inode->i_sb, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) if (truncate && S_ISDIR(inode->i_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * We got a truncate request for a dir which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * is impossible. The only imaginable way is to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * execute unfinished truncate request then boot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * into old kernel, remove the file and create dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * with the same key.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) reiserfs_warning(s, "green-2101",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) "impossible truncate on a "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) "directory %k. Please report",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) INODE_PKEY(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) retval = remove_save_link_only(s, &save_link_key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) truncate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (truncate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) REISERFS_I(inode)->i_flags |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) i_link_saved_truncate_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * not completed truncate found. New size was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * committed together with "save" link
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) reiserfs_info(s, "Truncating %k to %lld ..",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) INODE_PKEY(inode), inode->i_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /* don't update modification time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) reiserfs_truncate_file(inode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) retval = remove_save_link(inode, truncate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) REISERFS_I(inode)->i_flags |= i_link_saved_unlink_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) /* not completed unlink (rmdir) found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) reiserfs_info(s, "Removing %k..", INODE_PKEY(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (memcmp(&last_inode_key, INODE_PKEY(inode),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) sizeof(last_inode_key))){
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) last_inode_key = *INODE_PKEY(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) /* removal gets completed in iput */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) reiserfs_warning(s, "super-2189", "Dead loop "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) "in finish_unfinished "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) "detected, just remove "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) "save link\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) retval = remove_save_link_only(s,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) &save_link_key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) printk("done\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) done++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) REISERFS_SB(s)->s_is_unlinked_ok = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* Turn quotas off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) for (i = 0; i < REISERFS_MAXQUOTAS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (sb_dqopt(s)->files[i] && quota_enabled[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) dquot_quota_off(s, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (ms_active_set)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /* Restore the flag back */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) s->s_flags &= ~SB_ACTIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) pathrelse(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (done)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) reiserfs_info(s, "There were %d uncompleted unlinks/truncates. "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) "Completed\n", done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) * to protect file being unlinked from getting lost we "safe" link files
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) * being unlinked. This link will be deleted in the same transaction with last
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) * item of file. mounting the filesystem we scan all these links and remove
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * files which almost got lost
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) void add_save_link(struct reiserfs_transaction_handle *th,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) struct inode *inode, int truncate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) INITIALIZE_PATH(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct cpu_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct item_head ih;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) __le32 link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) BUG_ON(!th->t_trans_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* file can only get one "save link" of each kind */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) RFALSE(truncate &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) (REISERFS_I(inode)->i_flags & i_link_saved_truncate_mask),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) "saved link already exists for truncated inode %lx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) (long)inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) RFALSE(!truncate &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) (REISERFS_I(inode)->i_flags & i_link_saved_unlink_mask),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) "saved link already exists for unlinked inode %lx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) (long)inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) /* setup key of "save" link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) key.version = KEY_FORMAT_3_5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) key.on_disk_key.k_dir_id = MAX_KEY_OBJECTID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) key.on_disk_key.k_objectid = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) if (!truncate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) /* unlink, rmdir, rename */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) set_cpu_key_k_offset(&key, 1 + inode->i_sb->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) set_cpu_key_k_type(&key, TYPE_DIRECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) /* item head of "safe" link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) make_le_item_head(&ih, &key, key.version,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 1 + inode->i_sb->s_blocksize, TYPE_DIRECT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 4 /*length */ , 0xffff /*free space */ );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) /* truncate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (S_ISDIR(inode->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) reiserfs_warning(inode->i_sb, "green-2102",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) "Adding a truncate savelink for "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) "a directory %k! Please report",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) INODE_PKEY(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) set_cpu_key_k_offset(&key, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) set_cpu_key_k_type(&key, TYPE_INDIRECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) /* item head of "safe" link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) make_le_item_head(&ih, &key, key.version, 1, TYPE_INDIRECT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 4 /*length */ , 0 /*free space */ );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) key.key_length = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) /* look for its place in the tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) retval = search_item(inode->i_sb, &key, &path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (retval != ITEM_NOT_FOUND) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (retval != -ENOSPC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) reiserfs_error(inode->i_sb, "vs-2100",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) "search_by_key (%K) returned %d", &key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) pathrelse(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) /* body of "save" link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) link = INODE_PKEY(inode)->k_dir_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) /* put "save" link into tree, don't charge quota to anyone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) retval =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) reiserfs_insert_item(th, &path, &key, &ih, NULL, (char *)&link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (retval != -ENOSPC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) reiserfs_error(inode->i_sb, "vs-2120",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) "insert_item returned %d", retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (truncate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) REISERFS_I(inode)->i_flags |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) i_link_saved_truncate_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) REISERFS_I(inode)->i_flags |= i_link_saved_unlink_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) /* this opens transaction unlike add_save_link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) int remove_save_link(struct inode *inode, int truncate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) struct reiserfs_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) /* we are going to do one balancing only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) err = journal_begin(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) /* setup key of "save" link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) key.k_dir_id = cpu_to_le32(MAX_KEY_OBJECTID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) key.k_objectid = INODE_PKEY(inode)->k_objectid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (!truncate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) /* unlink, rmdir, rename */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) set_le_key_k_offset(KEY_FORMAT_3_5, &key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 1 + inode->i_sb->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) set_le_key_k_type(KEY_FORMAT_3_5, &key, TYPE_DIRECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) /* truncate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) set_le_key_k_offset(KEY_FORMAT_3_5, &key, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) set_le_key_k_type(KEY_FORMAT_3_5, &key, TYPE_INDIRECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if ((truncate &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) (REISERFS_I(inode)->i_flags & i_link_saved_truncate_mask)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) (!truncate &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) (REISERFS_I(inode)->i_flags & i_link_saved_unlink_mask)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) /* don't take quota bytes from anywhere */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) reiserfs_delete_solid_item(&th, NULL, &key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) if (!truncate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) reiserfs_release_objectid(&th, inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) REISERFS_I(inode)->i_flags &= ~i_link_saved_unlink_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) REISERFS_I(inode)->i_flags &= ~i_link_saved_truncate_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) static void reiserfs_kill_sb(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) if (REISERFS_SB(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) reiserfs_proc_info_done(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * Force any pending inode evictions to occur now. Any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * inodes to be removed that have extended attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) * associated with them need to clean them up before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) * we can release the extended attribute root dentries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) * shrink_dcache_for_umount will BUG if we don't release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) * those before it's called so ->put_super is too late.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) shrink_dcache_sb(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) dput(REISERFS_SB(s)->xattr_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) REISERFS_SB(s)->xattr_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) dput(REISERFS_SB(s)->priv_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) REISERFS_SB(s)->priv_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) kill_block_super(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) static int reiserfs_quota_off(struct super_block *sb, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) static void reiserfs_quota_off_umount(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) int type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) for (type = 0; type < REISERFS_MAXQUOTAS; type++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) reiserfs_quota_off(s, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) static inline void reiserfs_quota_off_umount(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) static void reiserfs_put_super(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) th.t_trans_id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) reiserfs_quota_off_umount(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) * change file system state to current state if it was mounted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * with read-write permissions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (!sb_rdonly(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) if (!journal_begin(&th, s, 10)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) set_sb_umount_state(SB_DISK_SUPER_BLOCK(s),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) REISERFS_SB(s)->s_mount_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) * note, journal_release checks for readonly mount, and can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) * decide not to do a journal_end
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) journal_release(&th, s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) reiserfs_free_bitmap_cache(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) brelse(SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) print_statistics(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) if (REISERFS_SB(s)->reserved_blocks != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) reiserfs_warning(s, "green-2005", "reserved blocks left %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) REISERFS_SB(s)->reserved_blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) mutex_destroy(&REISERFS_SB(s)->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) destroy_workqueue(REISERFS_SB(s)->commit_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) kfree(REISERFS_SB(s)->s_jdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) kfree(s->s_fs_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) s->s_fs_info = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) static struct kmem_cache *reiserfs_inode_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) static struct inode *reiserfs_alloc_inode(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) struct reiserfs_inode_info *ei;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) ei = kmem_cache_alloc(reiserfs_inode_cachep, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) if (!ei)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) atomic_set(&ei->openers, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) mutex_init(&ei->tailpack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) memset(&ei->i_dquot, 0, sizeof(ei->i_dquot));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) return &ei->vfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) static void reiserfs_free_inode(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) static void init_once(void *foo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) struct reiserfs_inode_info *ei = (struct reiserfs_inode_info *)foo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) INIT_LIST_HEAD(&ei->i_prealloc_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) inode_init_once(&ei->vfs_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) static int __init init_inodecache(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) reiserfs_inode_cachep = kmem_cache_create("reiser_inode_cache",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) sizeof(struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) reiserfs_inode_info),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) 0, (SLAB_RECLAIM_ACCOUNT|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) SLAB_MEM_SPREAD|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) SLAB_ACCOUNT),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) init_once);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) if (reiserfs_inode_cachep == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static void destroy_inodecache(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) * Make sure all delayed rcu free inodes are flushed before we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) * destroy cache.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) rcu_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) kmem_cache_destroy(reiserfs_inode_cachep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) /* we don't mark inodes dirty, we just log them */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) static void reiserfs_dirty_inode(struct inode *inode, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) if (sb_rdonly(inode->i_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) reiserfs_warning(inode->i_sb, "clm-6006",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) "writing inode %lu on readonly FS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) reiserfs_write_lock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) * this is really only used for atime updates, so they don't have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) * to be included in O_SYNC or fsync
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) err = journal_begin(&th, inode->i_sb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) reiserfs_update_sd(&th, inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) reiserfs_write_unlock(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) static int reiserfs_show_options(struct seq_file *seq, struct dentry *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) struct super_block *s = root->d_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) struct reiserfs_journal *journal = SB_JOURNAL(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) long opts = REISERFS_SB(s)->s_mount_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) if (opts & (1 << REISERFS_LARGETAIL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) seq_puts(seq, ",tails=on");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) else if (!(opts & (1 << REISERFS_SMALLTAIL)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) seq_puts(seq, ",notail");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /* tails=small is default so we don't show it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (!(opts & (1 << REISERFS_BARRIER_FLUSH)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) seq_puts(seq, ",barrier=none");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) /* barrier=flush is default so we don't show it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) if (opts & (1 << REISERFS_ERROR_CONTINUE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) seq_puts(seq, ",errors=continue");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) else if (opts & (1 << REISERFS_ERROR_PANIC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) seq_puts(seq, ",errors=panic");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) /* errors=ro is default so we don't show it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (opts & (1 << REISERFS_DATA_LOG))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) seq_puts(seq, ",data=journal");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) else if (opts & (1 << REISERFS_DATA_WRITEBACK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) seq_puts(seq, ",data=writeback");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) /* data=ordered is default so we don't show it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (opts & (1 << REISERFS_ATTRS))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) seq_puts(seq, ",attrs");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) if (opts & (1 << REISERFS_XATTRS_USER))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) seq_puts(seq, ",user_xattr");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) if (opts & (1 << REISERFS_EXPOSE_PRIVROOT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) seq_puts(seq, ",expose_privroot");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (opts & (1 << REISERFS_POSIXACL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) seq_puts(seq, ",acl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) if (REISERFS_SB(s)->s_jdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) seq_show_option(seq, "jdev", REISERFS_SB(s)->s_jdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) if (journal->j_max_commit_age != journal->j_default_max_commit_age)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) seq_printf(seq, ",commit=%d", journal->j_max_commit_age);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (REISERFS_SB(s)->s_qf_names[USRQUOTA])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) seq_show_option(seq, "usrjquota",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) REISERFS_SB(s)->s_qf_names[USRQUOTA]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) else if (opts & (1 << REISERFS_USRQUOTA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) seq_puts(seq, ",usrquota");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) if (REISERFS_SB(s)->s_qf_names[GRPQUOTA])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) seq_show_option(seq, "grpjquota",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) REISERFS_SB(s)->s_qf_names[GRPQUOTA]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) else if (opts & (1 << REISERFS_GRPQUOTA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) seq_puts(seq, ",grpquota");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) if (REISERFS_SB(s)->s_jquota_fmt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_OLD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) seq_puts(seq, ",jqfmt=vfsold");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) else if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_V0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) seq_puts(seq, ",jqfmt=vfsv0");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) /* Block allocator options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) if (opts & (1 << REISERFS_NO_BORDER))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) seq_puts(seq, ",block-allocator=noborder");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) if (opts & (1 << REISERFS_NO_UNHASHED_RELOCATION))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) seq_puts(seq, ",block-allocator=no_unhashed_relocation");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) if (opts & (1 << REISERFS_HASHED_RELOCATION))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) seq_puts(seq, ",block-allocator=hashed_relocation");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) if (opts & (1 << REISERFS_TEST4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) seq_puts(seq, ",block-allocator=test4");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) show_alloc_options(seq, s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) static ssize_t reiserfs_quota_write(struct super_block *, int, const char *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) size_t, loff_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) static ssize_t reiserfs_quota_read(struct super_block *, int, char *, size_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) loff_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) static struct dquot **reiserfs_get_dquots(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) return REISERFS_I(inode)->i_dquot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) static const struct super_operations reiserfs_sops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) .alloc_inode = reiserfs_alloc_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) .free_inode = reiserfs_free_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) .write_inode = reiserfs_write_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) .dirty_inode = reiserfs_dirty_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) .evict_inode = reiserfs_evict_inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) .put_super = reiserfs_put_super,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) .sync_fs = reiserfs_sync_fs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) .freeze_fs = reiserfs_freeze,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) .unfreeze_fs = reiserfs_unfreeze,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) .statfs = reiserfs_statfs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) .remount_fs = reiserfs_remount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) .show_options = reiserfs_show_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) .quota_read = reiserfs_quota_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) .quota_write = reiserfs_quota_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) .get_dquots = reiserfs_get_dquots,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) #define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) static int reiserfs_write_dquot(struct dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) static int reiserfs_acquire_dquot(struct dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) static int reiserfs_release_dquot(struct dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) static int reiserfs_mark_dquot_dirty(struct dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) static int reiserfs_write_info(struct super_block *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) static int reiserfs_quota_on(struct super_block *, int, int, const struct path *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) static const struct dquot_operations reiserfs_quota_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) .write_dquot = reiserfs_write_dquot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) .acquire_dquot = reiserfs_acquire_dquot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) .release_dquot = reiserfs_release_dquot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) .mark_dirty = reiserfs_mark_dquot_dirty,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) .write_info = reiserfs_write_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) .alloc_dquot = dquot_alloc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) .destroy_dquot = dquot_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) .get_next_id = dquot_get_next_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) static const struct quotactl_ops reiserfs_qctl_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) .quota_on = reiserfs_quota_on,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) .quota_off = reiserfs_quota_off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) .quota_sync = dquot_quota_sync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) .get_state = dquot_get_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) .set_info = dquot_set_dqinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) .get_dqblk = dquot_get_dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) .set_dqblk = dquot_set_dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) static const struct export_operations reiserfs_export_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) .encode_fh = reiserfs_encode_fh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) .fh_to_dentry = reiserfs_fh_to_dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) .fh_to_parent = reiserfs_fh_to_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) .get_parent = reiserfs_get_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) * this struct is used in reiserfs_getopt () for containing the value for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) * those mount options that have values rather than being toggles.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) char *value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) * bitmask which is to set on mount_options bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) * when this value is found, 0 is no bits are to be changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) int setmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) * bitmask which is to clear on mount_options bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) * when this value is found, 0 is no bits are to be changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) * This is applied BEFORE setmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) int clrmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) } arg_desc_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) /* Set this bit in arg_required to allow empty arguments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) #define REISERFS_OPT_ALLOWEMPTY 31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) * this struct is used in reiserfs_getopt() for describing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) * set of reiserfs mount options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) char *option_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) /* 0 if argument is not required, not 0 otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) int arg_required;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) /* list of values accepted by an option */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) const arg_desc_t *values;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) * bitmask which is to set on mount_options bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) * when this value is found, 0 is no bits are to be changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) int setmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) * bitmask which is to clear on mount_options bitmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) * when this value is found, 0 is no bits are to be changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) * This is applied BEFORE setmask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) int clrmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) } opt_desc_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) /* possible values for -o data= */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) static const arg_desc_t logging_mode[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) {"ordered", 1 << REISERFS_DATA_ORDERED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) (1 << REISERFS_DATA_LOG | 1 << REISERFS_DATA_WRITEBACK)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) {"journal", 1 << REISERFS_DATA_LOG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) (1 << REISERFS_DATA_ORDERED | 1 << REISERFS_DATA_WRITEBACK)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) {"writeback", 1 << REISERFS_DATA_WRITEBACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) (1 << REISERFS_DATA_ORDERED | 1 << REISERFS_DATA_LOG)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) {.value = NULL}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) /* possible values for -o barrier= */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) static const arg_desc_t barrier_mode[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) {"none", 1 << REISERFS_BARRIER_NONE, 1 << REISERFS_BARRIER_FLUSH},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) {"flush", 1 << REISERFS_BARRIER_FLUSH, 1 << REISERFS_BARRIER_NONE},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) {.value = NULL}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) * possible values for "-o block-allocator=" and bits which are to be set in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) * s_mount_opt of reiserfs specific part of in-core super block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) static const arg_desc_t balloc[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) {"noborder", 1 << REISERFS_NO_BORDER, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) {"border", 0, 1 << REISERFS_NO_BORDER},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) {"no_unhashed_relocation", 1 << REISERFS_NO_UNHASHED_RELOCATION, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) {"hashed_relocation", 1 << REISERFS_HASHED_RELOCATION, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) {"test4", 1 << REISERFS_TEST4, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) {"notest4", 0, 1 << REISERFS_TEST4},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) {NULL, 0, 0}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) static const arg_desc_t tails[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) {"on", 1 << REISERFS_LARGETAIL, 1 << REISERFS_SMALLTAIL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) {"off", 0, (1 << REISERFS_LARGETAIL) | (1 << REISERFS_SMALLTAIL)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) {"small", 1 << REISERFS_SMALLTAIL, 1 << REISERFS_LARGETAIL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) {NULL, 0, 0}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) static const arg_desc_t error_actions[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) {"panic", 1 << REISERFS_ERROR_PANIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) (1 << REISERFS_ERROR_RO | 1 << REISERFS_ERROR_CONTINUE)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) {"ro-remount", 1 << REISERFS_ERROR_RO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) (1 << REISERFS_ERROR_PANIC | 1 << REISERFS_ERROR_CONTINUE)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) #ifdef REISERFS_JOURNAL_ERROR_ALLOWS_NO_LOG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) {"continue", 1 << REISERFS_ERROR_CONTINUE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) (1 << REISERFS_ERROR_PANIC | 1 << REISERFS_ERROR_RO)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) {NULL, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) * proceed only one option from a list *cur - string containing of mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) * options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) * opts - array of options which are accepted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) * opt_arg - if option is found and requires an argument and if it is specifed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) * in the input - pointer to the argument is stored here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) * bit_flags - if option requires to set a certain bit - it is set here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) * return -1 if unknown option is found, opt->arg_required otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) static int reiserfs_getopt(struct super_block *s, char **cur, opt_desc_t * opts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) char **opt_arg, unsigned long *bit_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) * foo=bar,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) * ^ ^ ^
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) * | | +-- option_end
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) * | +-- arg_start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) * +-- option_start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) const opt_desc_t *opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) const arg_desc_t *arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) p = *cur;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) /* assume argument cannot contain commas */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) *cur = strchr(p, ',');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) if (*cur) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) *(*cur) = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) (*cur)++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) if (!strncmp(p, "alloc=", 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) * Ugly special case, probably we should redo options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) * parser so that it can understand several arguments for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) * some options, also so that it can fill several bitfields
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) * with option values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if (reiserfs_parse_alloc_options(s, p + 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) /* for every option in the list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) for (opt = opts; opt->option_name; opt++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) if (!strncmp(p, opt->option_name, strlen(opt->option_name))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) if (bit_flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) if (opt->clrmask ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) (1 << REISERFS_UNSUPPORTED_OPT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) reiserfs_warning(s, "super-6500",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) "%s not supported.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) *bit_flags &= ~opt->clrmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) if (opt->setmask ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) (1 << REISERFS_UNSUPPORTED_OPT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) reiserfs_warning(s, "super-6501",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) "%s not supported.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) *bit_flags |= opt->setmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) if (!opt->option_name) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) reiserfs_warning(s, "super-6502",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) "unknown mount option \"%s\"", p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) p += strlen(opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) switch (*p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) case '=':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) if (!opt->arg_required) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) reiserfs_warning(s, "super-6503",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) "the option \"%s\" does not "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) "require an argument\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) if (opt->arg_required) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) reiserfs_warning(s, "super-6504",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) "the option \"%s\" requires an "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) "argument\n", opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) reiserfs_warning(s, "super-6505",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) "head of option \"%s\" is only correct\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) * move to the argument, or to next option if argument is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) * required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) if (opt->arg_required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) && !(opt->arg_required & (1 << REISERFS_OPT_ALLOWEMPTY))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) && !strlen(p)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) /* this catches "option=," if not allowed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) reiserfs_warning(s, "super-6506",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) "empty argument for \"%s\"\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) if (!opt->values) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) /* *=NULLopt_arg contains pointer to argument */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) *opt_arg = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) return opt->arg_required & ~(1 << REISERFS_OPT_ALLOWEMPTY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) /* values possible for this option are listed in opt->values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) for (arg = opt->values; arg->value; arg++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) if (!strcmp(p, arg->value)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) if (bit_flags) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) *bit_flags &= ~arg->clrmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) *bit_flags |= arg->setmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) return opt->arg_required;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) reiserfs_warning(s, "super-6506",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) "bad value \"%s\" for option \"%s\"\n", p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) opt->option_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) /* returns 0 if something is wrong in option string, 1 - otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) static int reiserfs_parse_options(struct super_block *s,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) /* string given via mount's -o */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) char *options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) * after the parsing phase, contains the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) * collection of bitflags defining what
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) * mount options were selected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) unsigned long *mount_options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) /* strtol-ed from NNN of resize=NNN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) unsigned long *blocks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) char **jdev_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) unsigned int *commit_max_age,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) char **qf_names,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) unsigned int *qfmt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) int c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) char *arg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) char *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) opt_desc_t opts[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) * Compatibility stuff, so that -o notail for old
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) * setups still work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) {"tails",.arg_required = 't',.values = tails},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) {"notail",.clrmask =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) (1 << REISERFS_LARGETAIL) | (1 << REISERFS_SMALLTAIL)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) {"conv",.setmask = 1 << REISERFS_CONVERT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) {"attrs",.setmask = 1 << REISERFS_ATTRS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) {"noattrs",.clrmask = 1 << REISERFS_ATTRS},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) {"expose_privroot", .setmask = 1 << REISERFS_EXPOSE_PRIVROOT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) #ifdef CONFIG_REISERFS_FS_XATTR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) {"user_xattr",.setmask = 1 << REISERFS_XATTRS_USER},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) {"nouser_xattr",.clrmask = 1 << REISERFS_XATTRS_USER},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) #ifdef CONFIG_REISERFS_FS_POSIX_ACL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) {"acl",.setmask = 1 << REISERFS_POSIXACL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) {"noacl",.clrmask = 1 << REISERFS_POSIXACL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) {"acl",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) {"noacl",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) {.option_name = "nolog"},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) {"replayonly",.setmask = 1 << REPLAYONLY},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) {"block-allocator",.arg_required = 'a',.values = balloc},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) {"data",.arg_required = 'd',.values = logging_mode},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) {"barrier",.arg_required = 'b',.values = barrier_mode},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) {"resize",.arg_required = 'r',.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) {"jdev",.arg_required = 'j',.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) {"nolargeio",.arg_required = 'w',.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) {"commit",.arg_required = 'c',.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) {"usrquota",.setmask = 1 << REISERFS_USRQUOTA},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) {"grpquota",.setmask = 1 << REISERFS_GRPQUOTA},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) {"noquota",.clrmask = 1 << REISERFS_USRQUOTA | 1 << REISERFS_GRPQUOTA},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) {"errors",.arg_required = 'e',.values = error_actions},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) {"usrjquota",.arg_required =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) 'u' | (1 << REISERFS_OPT_ALLOWEMPTY),.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) {"grpjquota",.arg_required =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) 'g' | (1 << REISERFS_OPT_ALLOWEMPTY),.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) {"jqfmt",.arg_required = 'f',.values = NULL},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) {.option_name = NULL}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) *blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) if (!options || !*options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) * use default configuration: create tails, journaling on, no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) * conversion to newest format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) for (pos = options; pos;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) c = reiserfs_getopt(s, &pos, opts, &arg, mount_options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) if (c == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) /* wrong option is given */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) if (c == 'r') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) p = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) /* "resize=NNN" or "resize=auto" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) if (!strcmp(arg, "auto")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) /* From JFS code, to auto-get the size. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) *blocks =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) i_size_read(s->s_bdev->bd_inode) >> s->
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) *blocks = simple_strtoul(arg, &p, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) if (*p != '\0') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) /* NNN does not look like a number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) reiserfs_warning(s, "super-6507",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) "bad value %s for "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) "-oresize\n", arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) if (c == 'c') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) char *p = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) unsigned long val = simple_strtoul(arg, &p, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) /* commit=NNN (time in seconds) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) if (*p != '\0' || val >= (unsigned int)-1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) reiserfs_warning(s, "super-6508",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) "bad value %s for -ocommit\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) *commit_max_age = (unsigned int)val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) if (c == 'w') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) reiserfs_warning(s, "super-6509", "nolargeio option "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) "is no longer supported");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) if (c == 'j') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) if (arg && *arg && jdev_name) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) /* Hm, already assigned? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) if (*jdev_name) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) reiserfs_warning(s, "super-6510",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) "journal device was "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) "already specified to "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) "be %s", *jdev_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) *jdev_name = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) if (c == 'u' || c == 'g') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) int qtype = c == 'u' ? USRQUOTA : GRPQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) if (sb_any_quota_loaded(s) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) (!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) reiserfs_warning(s, "super-6511",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) "cannot change journaled "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) "quota options when quota "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) "turned on.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) if (qf_names[qtype] !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) REISERFS_SB(s)->s_qf_names[qtype])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) kfree(qf_names[qtype]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) qf_names[qtype] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) if (*arg) { /* Some filename specified? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) if (REISERFS_SB(s)->s_qf_names[qtype]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) && strcmp(REISERFS_SB(s)->s_qf_names[qtype],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) arg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) reiserfs_warning(s, "super-6512",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) "%s quota file "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) "already specified.",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) QTYPE2NAME(qtype));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) if (strchr(arg, '/')) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) reiserfs_warning(s, "super-6513",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) "quotafile must be "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) "on filesystem root.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) qf_names[qtype] = kstrdup(arg, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) if (!qf_names[qtype]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) reiserfs_warning(s, "reiserfs-2502",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) "not enough memory "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) "for storing "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) "quotafile name.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) if (qtype == USRQUOTA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) *mount_options |= 1 << REISERFS_USRQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) *mount_options |= 1 << REISERFS_GRPQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) if (qtype == USRQUOTA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) *mount_options &= ~(1 << REISERFS_USRQUOTA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) *mount_options &= ~(1 << REISERFS_GRPQUOTA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) if (c == 'f') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) if (!strcmp(arg, "vfsold"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) *qfmt = QFMT_VFS_OLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) else if (!strcmp(arg, "vfsv0"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) *qfmt = QFMT_VFS_V0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) reiserfs_warning(s, "super-6514",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) "unknown quota format "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) "specified.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) if (sb_any_quota_loaded(s) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) *qfmt != REISERFS_SB(s)->s_jquota_fmt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) reiserfs_warning(s, "super-6515",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) "cannot change journaled "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) "quota options when quota "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) "turned on.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) if (c == 'u' || c == 'g' || c == 'f') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) reiserfs_warning(s, "reiserfs-2503", "journaled "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) "quota options not supported.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) if (!REISERFS_SB(s)->s_jquota_fmt && !*qfmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) && (qf_names[USRQUOTA] || qf_names[GRPQUOTA])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) reiserfs_warning(s, "super-6515",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) "journaled quota format not specified.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) if ((!(*mount_options & (1 << REISERFS_USRQUOTA)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) sb_has_quota_loaded(s, USRQUOTA)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) (!(*mount_options & (1 << REISERFS_GRPQUOTA)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) sb_has_quota_loaded(s, GRPQUOTA))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) reiserfs_warning(s, "super-6516", "quota options must "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) "be present when quota is turned on.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) static void switch_data_mode(struct super_block *s, unsigned long mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) REISERFS_SB(s)->s_mount_opt &= ~((1 << REISERFS_DATA_LOG) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) (1 << REISERFS_DATA_ORDERED) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) (1 << REISERFS_DATA_WRITEBACK));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) REISERFS_SB(s)->s_mount_opt |= (1 << mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) static void handle_data_mode(struct super_block *s, unsigned long mount_options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) if (mount_options & (1 << REISERFS_DATA_LOG)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) if (!reiserfs_data_log(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) switch_data_mode(s, REISERFS_DATA_LOG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) reiserfs_info(s, "switching to journaled data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) } else if (mount_options & (1 << REISERFS_DATA_ORDERED)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) if (!reiserfs_data_ordered(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) switch_data_mode(s, REISERFS_DATA_ORDERED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) reiserfs_info(s, "switching to ordered data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) } else if (mount_options & (1 << REISERFS_DATA_WRITEBACK)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) if (!reiserfs_data_writeback(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) switch_data_mode(s, REISERFS_DATA_WRITEBACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) reiserfs_info(s, "switching to writeback data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) static void handle_barrier_mode(struct super_block *s, unsigned long bits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) int flush = (1 << REISERFS_BARRIER_FLUSH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) int none = (1 << REISERFS_BARRIER_NONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) int all_barrier = flush | none;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) if (bits & all_barrier) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) REISERFS_SB(s)->s_mount_opt &= ~all_barrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) if (bits & flush) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) REISERFS_SB(s)->s_mount_opt |= flush;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) printk("reiserfs: enabling write barrier flush mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) } else if (bits & none) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) REISERFS_SB(s)->s_mount_opt |= none;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) printk("reiserfs: write barriers turned off\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) static void handle_attrs(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) if (reiserfs_attrs(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) if (old_format_only(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) reiserfs_warning(s, "super-6517", "cannot support "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) "attributes on 3.5.x disk format");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) if (!(le32_to_cpu(rs->s_flags) & reiserfs_attrs_cleared)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) reiserfs_warning(s, "super-6518", "cannot support "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) "attributes until flag is set in "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) "super-block");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) static void handle_quota_files(struct super_block *s, char **qf_names,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) unsigned int *qfmt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) for (i = 0; i < REISERFS_MAXQUOTAS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) kfree(REISERFS_SB(s)->s_qf_names[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) REISERFS_SB(s)->s_qf_names[i] = qf_names[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) if (*qfmt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) REISERFS_SB(s)->s_jquota_fmt = *qfmt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) struct reiserfs_super_block *rs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) unsigned long blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) unsigned long mount_options = REISERFS_SB(s)->s_mount_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) unsigned long safe_mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) unsigned int commit_max_age = (unsigned int)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) struct reiserfs_journal *journal = SB_JOURNAL(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) char *new_opts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) char *qf_names[REISERFS_MAXQUOTAS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) unsigned int qfmt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) new_opts = kstrdup(arg, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) if (arg && !new_opts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) sync_filesystem(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) memcpy(qf_names, REISERFS_SB(s)->s_qf_names, sizeof(qf_names));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) rs = SB_DISK_SUPER_BLOCK(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) if (!reiserfs_parse_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) (s, arg, &mount_options, &blocks, NULL, &commit_max_age,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) qf_names, &qfmt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) for (i = 0; i < REISERFS_MAXQUOTAS; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) kfree(qf_names[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) handle_quota_files(s, qf_names, &qfmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) handle_attrs(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) /* Add options that are safe here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) safe_mask |= 1 << REISERFS_SMALLTAIL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) safe_mask |= 1 << REISERFS_LARGETAIL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) safe_mask |= 1 << REISERFS_NO_BORDER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) safe_mask |= 1 << REISERFS_NO_UNHASHED_RELOCATION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) safe_mask |= 1 << REISERFS_HASHED_RELOCATION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) safe_mask |= 1 << REISERFS_TEST4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) safe_mask |= 1 << REISERFS_ATTRS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) safe_mask |= 1 << REISERFS_XATTRS_USER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) safe_mask |= 1 << REISERFS_POSIXACL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) safe_mask |= 1 << REISERFS_BARRIER_FLUSH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) safe_mask |= 1 << REISERFS_BARRIER_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) safe_mask |= 1 << REISERFS_ERROR_RO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) safe_mask |= 1 << REISERFS_ERROR_CONTINUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) safe_mask |= 1 << REISERFS_ERROR_PANIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) safe_mask |= 1 << REISERFS_USRQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) safe_mask |= 1 << REISERFS_GRPQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) * Update the bitmask, taking care to keep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) * the bits we're not allowed to change here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) REISERFS_SB(s)->s_mount_opt =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) (REISERFS_SB(s)->
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) s_mount_opt & ~safe_mask) | (mount_options & safe_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) if (commit_max_age != 0 && commit_max_age != (unsigned int)-1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) journal->j_max_commit_age = commit_max_age;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) journal->j_max_trans_age = commit_max_age;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) } else if (commit_max_age == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) /* 0 means restore defaults. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) journal->j_max_commit_age = journal->j_default_max_commit_age;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) journal->j_max_trans_age = JOURNAL_MAX_TRANS_AGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) if (blocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) err = reiserfs_resize(s, blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) if (err != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) if (*mount_flags & SB_RDONLY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) reiserfs_xattr_init(s, *mount_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) /* remount read-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) if (sb_rdonly(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) /* it is read-only already */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) goto out_ok_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) err = dquot_suspend(s, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) goto out_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) /* try to remount file system with read-only permissions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) if (sb_umount_state(rs) == REISERFS_VALID_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) || REISERFS_SB(s)->s_mount_state != REISERFS_VALID_FS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) goto out_ok_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) err = journal_begin(&th, s, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) /* Mounting a rw partition read-only. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) set_sb_umount_state(rs, REISERFS_SB(s)->s_mount_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) /* remount read-write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) if (!sb_rdonly(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) reiserfs_xattr_init(s, *mount_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) goto out_ok_unlocked; /* We are read-write already */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) if (reiserfs_is_journal_aborted(journal)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) err = journal->j_errno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) handle_data_mode(s, mount_options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) handle_barrier_mode(s, mount_options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) REISERFS_SB(s)->s_mount_state = sb_umount_state(rs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) /* now it is safe to call journal_begin */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) s->s_flags &= ~SB_RDONLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) err = journal_begin(&th, s, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) /* Mount a partition which is read-only, read-write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) REISERFS_SB(s)->s_mount_state = sb_umount_state(rs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) s->s_flags &= ~SB_RDONLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) set_sb_umount_state(rs, REISERFS_ERROR_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) if (!old_format_only(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) /* mark_buffer_dirty (SB_BUFFER_WITH_SB (s), 1); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) REISERFS_SB(s)->s_mount_state = REISERFS_VALID_FS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) /* this will force a full flush of all journal lists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) SB_JOURNAL(s)->j_must_wait = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) goto out_err_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) if (!(*mount_flags & SB_RDONLY)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) dquot_resume(s, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) finish_unfinished(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) reiserfs_xattr_init(s, *mount_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) out_ok_unlocked:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) out_err_unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) out_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) kfree(new_opts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) static int read_super_block(struct super_block *s, int offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) struct buffer_head *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) struct reiserfs_super_block *rs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) int fs_blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) bh = sb_bread(s, offset / s->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) if (!bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) reiserfs_warning(s, "sh-2006",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) "bread failed (dev %s, block %lu, size %lu)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) s->s_id, offset / s->s_blocksize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) s->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) rs = (struct reiserfs_super_block *)bh->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) if (!is_any_reiserfs_magic_string(rs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) * ok, reiserfs signature (old or new) found in at the given offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) fs_blocksize = sb_blocksize(rs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) sb_set_blocksize(s, fs_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) bh = sb_bread(s, offset / s->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) if (!bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) reiserfs_warning(s, "sh-2007",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) "bread failed (dev %s, block %lu, size %lu)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) s->s_id, offset / s->s_blocksize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) s->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) rs = (struct reiserfs_super_block *)bh->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) if (sb_blocksize(rs) != s->s_blocksize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) reiserfs_warning(s, "sh-2011", "can't find a reiserfs "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) "filesystem on (dev %s, block %llu, size %lu)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) s->s_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) (unsigned long long)bh->b_blocknr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) s->s_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) if (rs->s_v1.s_root_block == cpu_to_le32(-1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) reiserfs_warning(s, "super-6519", "Unfinished reiserfsck "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) "--rebuild-tree run detected. Please run\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) "reiserfsck --rebuild-tree and wait for a "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) "completion. If that fails\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) "get newer reiserfsprogs package");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) SB_BUFFER_WITH_SB(s) = bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) SB_DISK_SUPER_BLOCK(s) = rs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) * magic is of non-standard journal filesystem, look at s_version to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) * find which format is in use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) if (is_reiserfs_jr(rs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) if (sb_version(rs) == REISERFS_VERSION_2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) reiserfs_info(s, "found reiserfs format \"3.6\""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) " with non-standard journal\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) else if (sb_version(rs) == REISERFS_VERSION_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) reiserfs_info(s, "found reiserfs format \"3.5\""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) " with non-standard journal\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) reiserfs_warning(s, "sh-2012", "found unknown "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) "format \"%u\" of reiserfs with "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) "non-standard magic", sb_version(rs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) * s_version of standard format may contain incorrect
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) * information, so we just look at the magic string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) reiserfs_info(s,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) "found reiserfs format \"%s\" with standard journal\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) is_reiserfs_3_5(rs) ? "3.5" : "3.6");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) s->s_op = &reiserfs_sops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) s->s_export_op = &reiserfs_export_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) s->s_qcop = &reiserfs_qctl_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) s->dq_op = &reiserfs_quota_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) s->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) * new format is limited by the 32 bit wide i_blocks field, want to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) * be one full block below that.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) s->s_maxbytes = (512LL << 32) - s->s_blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) /* after journal replay, reread all bitmap and super blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) static int reread_meta_blocks(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) ll_rw_block(REQ_OP_READ, 0, 1, &SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) wait_on_buffer(SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) reiserfs_warning(s, "reiserfs-2504", "error reading the super");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) /* hash detection stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) * if root directory is empty - we set default - Yura's - hash and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) * warn about it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) * FIXME: we look for only one name in a directory. If tea and yura
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) * both have the same value - we ask user to send report to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) * mailing list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) static __u32 find_hash_out(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) struct cpu_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) INITIALIZE_PATH(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) struct reiserfs_dir_entry de;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) struct reiserfs_de_head *deh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) __u32 hash = DEFAULT_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) __u32 deh_hashval, teahash, r5hash, yurahash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) inode = d_inode(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) make_cpu_key(&key, inode, ~0, TYPE_DIRENTRY, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) retval = search_by_entry_key(s, &key, &path, &de);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) if (retval == IO_ERROR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) pathrelse(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) return UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) if (retval == NAME_NOT_FOUND)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) de.de_entry_num--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) set_de_name_and_namelen(&de);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) deh = de.de_deh + de.de_entry_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) if (deh_offset(deh) == DOT_DOT_OFFSET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) /* allow override in this case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) if (reiserfs_rupasov_hash(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) hash = YURA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) reiserfs_info(s, "FS seems to be empty, autodetect is using the default hash\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) deh_hashval = GET_HASH_VALUE(deh_offset(deh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) r5hash = GET_HASH_VALUE(r5_hash(de.de_name, de.de_namelen));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) teahash = GET_HASH_VALUE(keyed_hash(de.de_name, de.de_namelen));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) yurahash = GET_HASH_VALUE(yura_hash(de.de_name, de.de_namelen));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) if ((teahash == r5hash && deh_hashval == r5hash) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) (teahash == yurahash && deh_hashval == yurahash) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) (r5hash == yurahash && deh_hashval == yurahash)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) reiserfs_warning(s, "reiserfs-2506",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) "Unable to automatically detect hash "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) "function. Please mount with -o "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) "hash={tea,rupasov,r5}");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) hash = UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) if (deh_hashval == yurahash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) hash = YURA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) else if (deh_hashval == teahash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) hash = TEA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) else if (deh_hashval == r5hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) hash = R5_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) reiserfs_warning(s, "reiserfs-2506",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) "Unrecognised hash function");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) hash = UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) pathrelse(&path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) return hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) /* finds out which hash names are sorted with */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) static int what_hash(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) __u32 code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) code = sb_hash_function_code(SB_DISK_SUPER_BLOCK(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) * reiserfs_hash_detect() == true if any of the hash mount options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) * were used. We must check them to make sure the user isn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) * using a bad hash value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) if (code == UNSET_HASH || reiserfs_hash_detect(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) code = find_hash_out(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) if (code != UNSET_HASH && reiserfs_hash_detect(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) * detection has found the hash, and we must check against the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) * mount options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) reiserfs_warning(s, "reiserfs-2507",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) "Error, %s hash detected, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) "unable to force rupasov hash",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) reiserfs_hashname(code));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) code = UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) } else if (reiserfs_tea_hash(s) && code != TEA_HASH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) reiserfs_warning(s, "reiserfs-2508",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) "Error, %s hash detected, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) "unable to force tea hash",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) reiserfs_hashname(code));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) code = UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) } else if (reiserfs_r5_hash(s) && code != R5_HASH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) reiserfs_warning(s, "reiserfs-2509",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) "Error, %s hash detected, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) "unable to force r5 hash",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) reiserfs_hashname(code));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) code = UNSET_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) * find_hash_out was not called or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) * could not determine the hash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) if (reiserfs_rupasov_hash(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) code = YURA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) } else if (reiserfs_tea_hash(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) code = TEA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) } else if (reiserfs_r5_hash(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) code = R5_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) * if we are mounted RW, and we have a new valid hash code, update
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) * the super
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) if (code != UNSET_HASH &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) !sb_rdonly(s) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) return code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) /* return pointer to appropriate function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) static hashf_t hash_function(struct super_block *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) switch (what_hash(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) case TEA_HASH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) reiserfs_info(s, "Using tea hash to sort names\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) return keyed_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) case YURA_HASH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) reiserfs_info(s, "Using rupasov hash to sort names\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) return yura_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) case R5_HASH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) reiserfs_info(s, "Using r5 hash to sort names\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) return r5_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) /* this is used to set up correct value for old partitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) static int function2code(hashf_t func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) if (func == keyed_hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) return TEA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) if (func == yura_hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) return YURA_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) if (func == r5_hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) return R5_HASH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) BUG(); /* should never happen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) #define SWARN(silent, s, id, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) if (!(silent)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) reiserfs_warning(s, id, __VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) struct inode *root_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) int old_format = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) unsigned long blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) unsigned int commit_max_age = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) int jinit_done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) struct reiserfs_iget_args args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) struct reiserfs_super_block *rs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) char *jdev_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) struct reiserfs_sb_info *sbi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) int errval = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) char *qf_names[REISERFS_MAXQUOTAS] = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) unsigned int qfmt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) if (!sbi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) s->s_fs_info = sbi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) /* Set default values for options: non-aggressive tails, RO on errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) /* no preallocation minimum, be smart in reiserfs_file_write instead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) sbi->s_alloc_options.preallocmin = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) /* Preallocate by 16 blocks (17-1) at once */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) sbi->s_alloc_options.preallocsize = 17;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) /* setup default block allocator options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) reiserfs_init_alloc_options(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) spin_lock_init(&sbi->old_work_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) INIT_DELAYED_WORK(&sbi->old_work, flush_old_commits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) mutex_init(&sbi->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) sbi->lock_depth = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) sbi->commit_wq = alloc_workqueue("reiserfs/%s", WQ_MEM_RECLAIM, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) s->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) if (!sbi->commit_wq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) SWARN(silent, s, "", "Cannot allocate commit workqueue");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) errval = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) jdev_name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) if (reiserfs_parse_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) (s, (char *)data, &sbi->s_mount_opt, &blocks, &jdev_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) &commit_max_age, qf_names, &qfmt) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) if (jdev_name && jdev_name[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) sbi->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) if (!sbi->s_jdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) SWARN(silent, s, "", "Cannot allocate memory for "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) "journal device name");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) handle_quota_files(s, qf_names, &qfmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) if (blocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) SWARN(silent, s, "jmacd-7", "resize option for remount only");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) * try old format (undistributed bitmap, super block in 8-th 1k
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) * block of a device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) if (!read_super_block(s, REISERFS_OLD_DISK_OFFSET_IN_BYTES))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) old_format = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) * try new format (64-th 1k block), which can contain reiserfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) * super block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) else if (read_super_block(s, REISERFS_DISK_OFFSET_IN_BYTES)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) SWARN(silent, s, "sh-2021", "can not find reiserfs on %s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) s->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) s->s_time_min = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) s->s_time_max = U32_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) rs = SB_DISK_SUPER_BLOCK(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) * Let's do basic sanity check to verify that underlying device is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) * smaller than the filesystem. If the check fails then abort and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) * scream, because bad stuff will happen otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) if (s->s_bdev && s->s_bdev->bd_inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) && i_size_read(s->s_bdev->bd_inode) <
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) sb_block_count(rs) * sb_blocksize(rs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) SWARN(silent, s, "", "Filesystem cannot be "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) "mounted because it is bigger than the device");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) SWARN(silent, s, "", "You may need to run fsck "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) "or increase size of your LVM partition");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) SWARN(silent, s, "", "Or may be you forgot to "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) "reboot after fdisk when it told you to");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) sbi->s_mount_state = SB_REISERFS_STATE(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) sbi->s_mount_state = REISERFS_VALID_FS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) if ((errval = reiserfs_init_bitmap_cache(s))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) SWARN(silent, s, "jmacd-8", "unable to read bitmap");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) errval = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) #ifdef CONFIG_REISERFS_CHECK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) SWARN(silent, s, "", "CONFIG_REISERFS_CHECK is set ON");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) SWARN(silent, s, "", "- it is slow mode for debugging.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015) /* make data=ordered the default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) if (!reiserfs_data_log(s) && !reiserfs_data_ordered(s) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) !reiserfs_data_writeback(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) sbi->s_mount_opt |= (1 << REISERFS_DATA_ORDERED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) if (reiserfs_data_log(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) reiserfs_info(s, "using journaled data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) } else if (reiserfs_data_ordered(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) reiserfs_info(s, "using ordered data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) reiserfs_info(s, "using writeback data mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) if (reiserfs_barrier_flush(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) printk("reiserfs: using flush barriers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) if (journal_init(s, jdev_name, old_format, commit_max_age)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) SWARN(silent, s, "sh-2022",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) "unable to initialize journal space");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) * once this is set, journal_release must be called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) * if we error out of the mount
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) jinit_done = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) if (reread_meta_blocks(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) SWARN(silent, s, "jmacd-9",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) "unable to reread meta blocks after journal init");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) if (replay_only(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) s->s_xattr = reiserfs_xattr_handlers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) SWARN(silent, s, "clm-7000",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) "Detected readonly device, marking FS readonly");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) s->s_flags |= SB_RDONLY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) args.objectid = REISERFS_ROOT_OBJECTID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) args.dirid = REISERFS_ROOT_PARENT_OBJECTID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) root_inode =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) iget5_locked(s, REISERFS_ROOT_OBJECTID, reiserfs_find_actor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) reiserfs_init_locked_inode, (void *)&args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) if (!root_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) SWARN(silent, s, "jmacd-10", "get root inode failed");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) * This path assumed to be called with the BKL in the old times.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) * Now we have inherited the big reiserfs lock from it and many
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) * reiserfs helpers called in the mount path and elsewhere require
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074) * this lock to be held even if it's not always necessary. Let's be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) * conservative and hold it early. The window can be reduced after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) * careful review of the code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) if (root_inode->i_state & I_NEW) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) reiserfs_read_locked_inode(root_inode, &args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) unlock_new_inode(root_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) if (!S_ISDIR(root_inode->i_mode) || !inode_get_bytes(root_inode) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) !root_inode->i_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) SWARN(silent, s, "", "corrupt root inode, run fsck");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) iput(root_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) errval = -EUCLEAN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) s->s_root = d_make_root(root_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) if (!s->s_root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) /* define and initialize hash function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) sbi->s_hash_function = hash_function(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) if (sbi->s_hash_function == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) dput(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) s->s_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) if (is_reiserfs_3_5(rs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) || (is_reiserfs_jr(rs) && SB_VERSION(s) == REISERFS_VERSION_1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) set_bit(REISERFS_3_5, &sbi->s_properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) else if (old_format)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) set_bit(REISERFS_OLD_FORMAT, &sbi->s_properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) set_bit(REISERFS_3_6, &sbi->s_properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) if (!sb_rdonly(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) errval = journal_begin(&th, s, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) if (errval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) dput(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) s->s_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120) reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) set_sb_umount_state(rs, REISERFS_ERROR_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) set_sb_fs_state(rs, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) * Clear out s_bmap_nr if it would wrap. We can handle this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) * case, but older revisions can't. This will cause the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) * file system to fail mount on those older implementations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) * avoiding corruption. -jeffm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) if (bmap_would_wrap(reiserfs_bmap_count(s)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132) sb_bmap_nr(rs) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133) reiserfs_warning(s, "super-2030", "This file system "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) "claims to use %u bitmap blocks in "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) "its super block, but requires %u. "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) "Clearing to zero.", sb_bmap_nr(rs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137) reiserfs_bmap_count(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) set_sb_bmap_nr(rs, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) if (old_format_only(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) * filesystem of format 3.5 either with standard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) * or non-standard journal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) if (convert_reiserfs(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) /* and -o conv is given */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) if (!silent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) reiserfs_info(s,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) "converting 3.5 filesystem to the 3.6 format");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) if (is_reiserfs_3_5(rs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) * put magic string of 3.6 format.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) * 2.2 will not be able to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) * mount this filesystem anymore
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) memcpy(rs->s_v1.s_magic,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) reiserfs_3_6_magic_string,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) sizeof
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) (reiserfs_3_6_magic_string));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) set_sb_version(rs, REISERFS_VERSION_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) reiserfs_convert_objectid_map_v1(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) set_bit(REISERFS_3_6, &sbi->s_properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167) clear_bit(REISERFS_3_5, &sbi->s_properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) } else if (!silent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) reiserfs_info(s, "using 3.5.x disk format\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) errval = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) if (errval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) dput(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) s->s_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) if ((errval = reiserfs_lookup_privroot(s)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) (errval = reiserfs_xattr_init(s, s->s_flags))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) dput(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) s->s_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) * look for files which were to be removed in previous session
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) finish_unfinished(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) if (old_format_only(s) && !silent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) reiserfs_info(s, "using 3.5.x disk format\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) if ((errval = reiserfs_lookup_privroot(s)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) (errval = reiserfs_xattr_init(s, s->s_flags))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) dput(s->s_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) s->s_root = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) goto error_unlocked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) * mark hash in super block: it could be unset. overwrite should be ok
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) set_sb_hash_function_code(rs, function2code(sbi->s_hash_function));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) handle_attrs(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) reiserfs_proc_info_init(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) init_waitqueue_head(&(sbi->s_wait));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) spin_lock_init(&sbi->bitmap_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) return (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) error_unlocked:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) /* kill the commit thread, free journal ram */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) if (jinit_done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) reiserfs_write_lock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) journal_release_error(NULL, s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) reiserfs_write_unlock(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) if (sbi->commit_wq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) destroy_workqueue(sbi->commit_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) reiserfs_cancel_old_flush(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) reiserfs_free_bitmap_cache(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) if (SB_BUFFER_WITH_SB(s))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) brelse(SB_BUFFER_WITH_SB(s));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) for (j = 0; j < REISERFS_MAXQUOTAS; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) kfree(qf_names[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) kfree(sbi->s_jdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) kfree(sbi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) s->s_fs_info = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) return errval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(dentry->d_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) buf->f_namelen = (REISERFS_MAX_NAME(s->s_blocksize));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) buf->f_bfree = sb_free_blocks(rs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265) buf->f_bavail = buf->f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) buf->f_blocks = sb_block_count(rs) - sb_bmap_nr(rs) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) buf->f_bsize = dentry->d_sb->s_blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) /* changed to accommodate gcc folks. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) buf->f_type = REISERFS_SUPER_MAGIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) buf->f_fsid.val[0] = (u32)crc32_le(0, rs->s_uuid, sizeof(rs->s_uuid)/2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) buf->f_fsid.val[1] = (u32)crc32_le(0, rs->s_uuid + sizeof(rs->s_uuid)/2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) sizeof(rs->s_uuid)/2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) #ifdef CONFIG_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) static int reiserfs_write_dquot(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) int ret, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) reiserfs_write_lock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) ret =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) journal_begin(&th, dquot->dq_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) depth = reiserfs_write_unlock_nested(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) ret = dquot_commit(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) reiserfs_write_lock_nested(dquot->dq_sb, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) if (!ret && err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) ret = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) reiserfs_write_unlock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) static int reiserfs_acquire_dquot(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304) int ret, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) reiserfs_write_lock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) ret =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) journal_begin(&th, dquot->dq_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) depth = reiserfs_write_unlock_nested(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) ret = dquot_acquire(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) reiserfs_write_lock_nested(dquot->dq_sb, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) if (!ret && err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318) ret = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) reiserfs_write_unlock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) static int reiserfs_release_dquot(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) int ret, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329) reiserfs_write_lock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) ret =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) journal_begin(&th, dquot->dq_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333) reiserfs_write_unlock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) /* Release dquot anyway to avoid endless cycle in dqput() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) dquot_release(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) ret = dquot_release(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) reiserfs_write_lock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) if (!ret && err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) ret = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344) reiserfs_write_unlock(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) static int reiserfs_mark_dquot_dirty(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) /* Are we journaling quotas? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) if (REISERFS_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) REISERFS_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) dquot_mark_dquot_dirty(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) return reiserfs_write_dquot(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) return dquot_mark_dquot_dirty(dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) static int reiserfs_write_info(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) int ret, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) /* Data block + inode block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) reiserfs_write_lock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) ret = journal_begin(&th, sb, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) depth = reiserfs_write_unlock_nested(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) ret = dquot_commit_info(sb, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) reiserfs_write_lock_nested(sb, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) err = journal_end(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) if (!ret && err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) ret = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) * Turn on quotas during mount time - we need to find the quota file and such...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) static int reiserfs_quota_on_mount(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) return dquot_quota_on_mount(sb, REISERFS_SB(sb)->s_qf_names[type],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) REISERFS_SB(sb)->s_jquota_fmt, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) * Standard function to be called on quota_on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) const struct path *path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) struct reiserfs_transaction_handle th;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) int opt = type == USRQUOTA ? REISERFS_USRQUOTA : REISERFS_GRPQUOTA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) reiserfs_write_lock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) if (!(REISERFS_SB(sb)->s_mount_opt & (1 << opt))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) /* Quotafile not on the same filesystem? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) if (path->dentry->d_sb != sb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) err = -EXDEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) inode = d_inode(path->dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) * We must not pack tails for quota files on reiserfs for quota
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416) * IO to work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) if (!(REISERFS_I(inode)->i_flags & i_nopack_mask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) err = reiserfs_unpack(inode, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) reiserfs_warning(sb, "super-6520",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422) "Unpacking tail of quota file failed"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) " (%d). Cannot turn on quotas.", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) /* Journaling quota? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) if (REISERFS_SB(sb)->s_qf_names[type]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) /* Quotafile not of fs root? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) if (path->dentry->d_parent != sb->s_root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) reiserfs_warning(sb, "super-6521",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) "Quota file not on filesystem root. "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) "Journalled quota will not work.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) * When we journal data on quota file, we have to flush journal to see
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) * all updates to the file when we bypass pagecache...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) if (reiserfs_file_data_log(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) /* Just start temporary transaction and finish it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) err = journal_begin(&th, sb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) err = journal_end_sync(&th);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) err = dquot_quota_on(sb, type, format_id, path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) inode_lock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) REISERFS_I(inode)->i_attrs |= REISERFS_IMMUTABLE_FL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) REISERFS_NOATIME_FL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) inode_set_flags(inode, S_IMMUTABLE | S_NOATIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) S_IMMUTABLE | S_NOATIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) inode_unlock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) static int reiserfs_quota_off(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) struct inode *inode = sb_dqopt(sb)->files[type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) if (!inode || !igrab(inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) err = dquot_quota_off(sb, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) goto out_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) inode_lock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) REISERFS_I(inode)->i_attrs &= ~(REISERFS_IMMUTABLE_FL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482) REISERFS_NOATIME_FL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) inode_set_flags(inode, 0, S_IMMUTABLE | S_NOATIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) inode_unlock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) out_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) return dquot_quota_off(sb, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) * Read data from quotafile - avoid pagecache and such because we cannot afford
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495) * acquiring the locks... As quota files are never truncated and quota code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) * itself serializes the operations (and no one else should touch the files)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497) * we don't have to be afraid of races
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) static ssize_t reiserfs_quota_read(struct super_block *sb, int type, char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) size_t len, loff_t off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) struct inode *inode = sb_dqopt(sb)->files[type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) unsigned long blk = off >> sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) int err = 0, offset = off & (sb->s_blocksize - 1), tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) size_t toread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) struct buffer_head tmp_bh, *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507) loff_t i_size = i_size_read(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) if (off > i_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) if (off + len > i_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) len = i_size - off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) toread = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) while (toread > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) tocopy =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) sb->s_blocksize - offset <
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) toread ? sb->s_blocksize - offset : toread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) tmp_bh.b_state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520) * Quota files are without tails so we can safely
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) * use this function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) reiserfs_write_lock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) err = reiserfs_get_block(inode, blk, &tmp_bh, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) if (!buffer_mapped(&tmp_bh)) /* A hole? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) memset(data, 0, tocopy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531) bh = sb_bread(sb, tmp_bh.b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) if (!bh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534) memcpy(data, bh->b_data + offset, tocopy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538) toread -= tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) data += tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) blk++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546) * Write to quotafile (we know the transaction is already started and has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547) * enough credits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549) static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550) const char *data, size_t len, loff_t off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552) struct inode *inode = sb_dqopt(sb)->files[type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) unsigned long blk = off >> sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554) int err = 0, offset = off & (sb->s_blocksize - 1), tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) int journal_quota = REISERFS_SB(sb)->s_qf_names[type] != NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) size_t towrite = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557) struct buffer_head tmp_bh, *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) if (!current->journal_info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) printk(KERN_WARNING "reiserfs: Quota write (off=%llu, len=%llu) cancelled because transaction is not started.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) (unsigned long long)off, (unsigned long long)len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564) while (towrite > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) tocopy = sb->s_blocksize - offset < towrite ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566) sb->s_blocksize - offset : towrite;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) tmp_bh.b_state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568) reiserfs_write_lock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569) err = reiserfs_get_block(inode, blk, &tmp_bh, GET_BLOCK_CREATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) if (offset || tocopy != sb->s_blocksize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574) bh = sb_bread(sb, tmp_bh.b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576) bh = sb_getblk(sb, tmp_bh.b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) if (!bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) err = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581) lock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) memcpy(bh->b_data + offset, data, tocopy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583) flush_dcache_page(bh->b_page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) set_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) unlock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) reiserfs_write_lock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587) reiserfs_prepare_for_journal(sb, bh, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588) journal_mark_dirty(current->journal_info, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589) if (!journal_quota)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) reiserfs_add_ordered_list(inode, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) reiserfs_write_unlock(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594) towrite -= tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595) data += tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596) blk++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) if (len == towrite)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601) if (inode->i_size < off + len - towrite)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) i_size_write(inode, off + len - towrite);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603) inode->i_mtime = inode->i_ctime = current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605) return len - towrite;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) static struct dentry *get_super_block(struct file_system_type *fs_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611) int flags, const char *dev_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612) void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) return mount_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617) static int __init init_reiserfs_fs(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) ret = init_inodecache();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625) reiserfs_proc_info_global_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627) ret = register_filesystem(&reiserfs_fs_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) reiserfs_proc_info_global_done();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) destroy_inodecache();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639) static void __exit exit_reiserfs_fs(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641) reiserfs_proc_info_global_done();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642) unregister_filesystem(&reiserfs_fs_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643) destroy_inodecache();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646) struct file_system_type reiserfs_fs_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648) .name = "reiserfs",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) .mount = get_super_block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650) .kill_sb = reiserfs_kill_sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651) .fs_flags = FS_REQUIRES_DEV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653) MODULE_ALIAS_FS("reiserfs");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655) MODULE_DESCRIPTION("ReiserFS journaled filesystem");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) MODULE_AUTHOR("Hans Reiser <reiser@namesys.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660) module_init(init_reiserfs_fs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) module_exit(exit_reiserfs_fs);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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