^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * ialloc.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * PURPOSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Inode allocation handling routines for the OSTA-UDF(tm) filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * COPYRIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This file is distributed under the terms of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * License (GPL). Copies of the GPL can be obtained from:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * ftp://prep.ai.mit.edu/pub/gnu/GPL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Each contributing author retains all rights to their own work.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * (C) 1998-2001 Ben Fennema
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * HISTORY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * 02/24/99 blf Created.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "udfdecl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "udf_i.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "udf_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) void udf_free_inode(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct udf_sb_info *sbi = UDF_SB(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) if (lvidiu) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) mutex_lock(&sbi->s_alloc_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (S_ISDIR(inode->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) le32_add_cpu(&lvidiu->numDirs, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) le32_add_cpu(&lvidiu->numFiles, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) udf_updated_lvid(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) mutex_unlock(&sbi->s_alloc_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct inode *udf_new_inode(struct inode *dir, umode_t mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct super_block *sb = dir->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct udf_sb_info *sbi = UDF_SB(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) udf_pblk_t block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct udf_inode_info *iinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct udf_inode_info *dinfo = UDF_I(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct logicalVolIntegrityDescImpUse *lvidiu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) inode = new_inode(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (!inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) iinfo = UDF_I(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) iinfo->i_efe = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) sizeof(struct extendedFileEntry),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) iinfo->i_efe = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) iinfo->i_data = kzalloc(inode->i_sb->s_blocksize -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) sizeof(struct fileEntry),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) if (!iinfo->i_data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) make_bad_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) err = -ENOSPC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) block = udf_new_block(dir->i_sb, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) dinfo->i_location.partitionReferenceNum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) start, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) make_bad_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) lvidiu = udf_sb_lvidiu(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (lvidiu) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) iinfo->i_unique = lvid_get_unique_id(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) inode->i_generation = iinfo->i_unique;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) mutex_lock(&sbi->s_alloc_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (S_ISDIR(mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) le32_add_cpu(&lvidiu->numDirs, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) le32_add_cpu(&lvidiu->numFiles, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) udf_updated_lvid(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) mutex_unlock(&sbi->s_alloc_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) inode_init_owner(inode, dir, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) inode->i_uid = sbi->s_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) inode->i_gid = sbi->s_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) iinfo->i_location.logicalBlockNum = block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) iinfo->i_location.partitionReferenceNum =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) dinfo->i_location.partitionReferenceNum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) inode->i_ino = udf_get_lb_pblock(sb, &iinfo->i_location, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) inode->i_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) iinfo->i_lenEAttr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) iinfo->i_lenAlloc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) iinfo->i_use = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) iinfo->i_checkpoint = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) iinfo->i_extraPerms = FE_PERM_U_CHATTR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) udf_update_extra_perms(inode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) iinfo->i_crtime = inode->i_mtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (unlikely(insert_inode_locked(inode) < 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) make_bad_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return ERR_PTR(-EIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags