^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/quota.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/quotaops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/dqblk_v1.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "quotaio_v1.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) MODULE_AUTHOR("Jan Kara");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) MODULE_DESCRIPTION("Old quota format support");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define QUOTABLOCK_BITS 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static inline qsize_t v1_stoqb(qsize_t space)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) return (space + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static inline qsize_t v1_qbtos(qsize_t blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) return blocks << QUOTABLOCK_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static void v1_disk2mem_dqblk(struct mem_dqblk *m, struct v1_disk_dqblk *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) m->dqb_ihardlimit = d->dqb_ihardlimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) m->dqb_isoftlimit = d->dqb_isoftlimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) m->dqb_curinodes = d->dqb_curinodes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) m->dqb_bhardlimit = v1_qbtos(d->dqb_bhardlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) m->dqb_bsoftlimit = v1_qbtos(d->dqb_bsoftlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) m->dqb_curspace = v1_qbtos(d->dqb_curblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) m->dqb_itime = d->dqb_itime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) m->dqb_btime = d->dqb_btime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static void v1_mem2disk_dqblk(struct v1_disk_dqblk *d, struct mem_dqblk *m)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) d->dqb_ihardlimit = m->dqb_ihardlimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) d->dqb_isoftlimit = m->dqb_isoftlimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) d->dqb_curinodes = m->dqb_curinodes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) d->dqb_bhardlimit = v1_stoqb(m->dqb_bhardlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) d->dqb_bsoftlimit = v1_stoqb(m->dqb_bsoftlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) d->dqb_curblocks = v1_stoqb(m->dqb_curspace);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) d->dqb_itime = m->dqb_itime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) d->dqb_btime = m->dqb_btime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static int v1_read_dqblk(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int type = dquot->dq_id.type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct v1_disk_dqblk dqblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (!dqopt->files[type])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* Set structure to 0s in case read fails/is after end of file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) memset(&dqblk, 0, sizeof(struct v1_disk_dqblk));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) sizeof(struct v1_disk_dqblk),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) v1_dqoff(from_kqid(&init_user_ns, dquot->dq_id)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) if (dquot->dq_dqb.dqb_bhardlimit == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) dquot->dq_dqb.dqb_bsoftlimit == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) dquot->dq_dqb.dqb_ihardlimit == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dquot->dq_dqb.dqb_isoftlimit == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) set_bit(DQ_FAKE_B, &dquot->dq_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) dqstats_inc(DQST_READS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static int v1_commit_dqblk(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) short type = dquot->dq_id.type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) ssize_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct v1_disk_dqblk dqblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (((type == USRQUOTA) && uid_eq(dquot->dq_id.uid, GLOBAL_ROOT_UID)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ((type == GRPQUOTA) && gid_eq(dquot->dq_id.gid, GLOBAL_ROOT_GID))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) dqblk.dqb_btime =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) dqblk.dqb_itime =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (sb_dqopt(dquot->dq_sb)->files[type])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) (char *)&dqblk, sizeof(struct v1_disk_dqblk),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) v1_dqoff(from_kqid(&init_user_ns, dquot->dq_id)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (ret != sizeof(struct v1_disk_dqblk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) quota_error(dquot->dq_sb, "dquota write failed");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (ret >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) dqstats_inc(DQST_WRITES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return ret;
^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) /* Magics of new quota format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define V2_INITQMAGICS {\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 0xd9c01f11, /* USRQUOTA */\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 0xd9c01927 /* GRPQUOTA */\
^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) /* Header of new quota format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct v2_disk_dqheader {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) __le32 dqh_magic; /* Magic number identifying file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) __le32 dqh_version; /* File version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int v1_check_quota_file(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct inode *inode = sb_dqopt(sb)->files[type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) ulong blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) size_t off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct v2_disk_dqheader dqhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) ssize_t size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) loff_t isize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static const uint quota_magics[] = V2_INITQMAGICS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) isize = i_size_read(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (!isize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) blocks = isize >> BLOCK_SIZE_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) off = isize & (BLOCK_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) %
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) sizeof(struct v1_disk_dqblk))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* Doublecheck whether we didn't get file with new format - with old
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * quotactl() this could happen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) sizeof(struct v2_disk_dqheader), 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (size != sizeof(struct v2_disk_dqheader))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) return 1; /* Probably not new format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return 1; /* Definitely not new format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) printk(KERN_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) "VFS: %s: Refusing to turn on old quota format on given file."
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) " It probably contains newer quota format.\n", sb->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return 0; /* Seems like a new format file -> refuse it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static int v1_read_file_info(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct quota_info *dqopt = sb_dqopt(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct v1_disk_dqblk dqblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) down_read(&dqopt->dqio_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) sizeof(struct v1_disk_dqblk), v1_dqoff(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (ret != sizeof(struct v1_disk_dqblk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (ret >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /* limits are stored as unsigned 32-bit data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) dqopt->info[type].dqi_max_spc_limit = 0xffffffffULL << QUOTABLOCK_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) dqopt->info[type].dqi_max_ino_limit = 0xffffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) dqopt->info[type].dqi_igrace =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) dqopt->info[type].dqi_bgrace =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) up_read(&dqopt->dqio_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static int v1_write_file_info(struct super_block *sb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct quota_info *dqopt = sb_dqopt(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct v1_disk_dqblk dqblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) down_write(&dqopt->dqio_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) sizeof(struct v1_disk_dqblk), v1_dqoff(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (ret != sizeof(struct v1_disk_dqblk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (ret >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) spin_lock(&dq_data_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) dqblk.dqb_itime = dqopt->info[type].dqi_igrace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) dqblk.dqb_btime = dqopt->info[type].dqi_bgrace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) spin_unlock(&dq_data_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) ret = sb->s_op->quota_write(sb, type, (char *)&dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) sizeof(struct v1_disk_dqblk), v1_dqoff(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (ret == sizeof(struct v1_disk_dqblk))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) else if (ret > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) up_write(&dqopt->dqio_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static const struct quota_format_ops v1_format_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) .check_quota_file = v1_check_quota_file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .read_file_info = v1_read_file_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .write_file_info = v1_write_file_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .read_dqblk = v1_read_dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .commit_dqblk = v1_commit_dqblk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static struct quota_format_type v1_quota_format = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) .qf_fmt_id = QFMT_VFS_OLD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .qf_ops = &v1_format_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) .qf_owner = THIS_MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) static int __init init_v1_quota_format(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return register_quota_format(&v1_quota_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static void __exit exit_v1_quota_format(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) unregister_quota_format(&v1_quota_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) module_init(init_v1_quota_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) module_exit(exit_v1_quota_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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