2 * quota.c --- code for handling ext4 quota inodes
7 #ifdef HAVE_SYS_MOUNT_H
10 #define MNT_FL (MS_MGC_VAL | MS_RDONLY)
12 #ifdef HAVE_SYS_STAT_H
18 #include "quota/mkquota.h"
19 #include "quota/quotaio.h"
21 static void move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino,
22 ext2_ino_t to_ino, int qtype)
24 struct ext2_inode inode;
25 char qf_name[QUOTA_NAME_LEN];
27 /* We need the inode bitmap to be loaded */
28 if (ext2fs_read_bitmaps(fs))
31 if (ext2fs_read_inode(fs, from_ino, &inode))
34 inode.i_links_count = 1;
35 inode.i_mode = LINUX_S_IFREG | 0600;
36 inode.i_flags = EXT2_IMMUTABLE_FL;
37 if (fs->super->s_feature_incompat &
38 EXT3_FEATURE_INCOMPAT_EXTENTS)
39 inode.i_flags |= EXT4_EXTENTS_FL;
41 ext2fs_write_new_inode(fs, to_ino, &inode);
42 /* unlink the old inode */
43 quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name);
44 ext2fs_unlink(fs, EXT2_ROOT_INO, qf_name, from_ino, 0);
45 ext2fs_inode_alloc_stats(fs, from_ino, -1);
46 /* Clear out the original inode in the inode-table block. */
47 memset(&inode, 0, sizeof(struct ext2_inode));
48 ext2fs_write_inode(fs, from_ino, &inode);
51 void e2fsck_hide_quota(e2fsck_t ctx)
53 struct ext2_super_block *sb = ctx->fs->super;
54 struct problem_context pctx;
55 ext2_filsys fs = ctx->fs;
57 clear_problem_context(&pctx);
59 if ((ctx->options & E2F_OPT_READONLY) ||
60 !(sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA))
63 pctx.ino = sb->s_usr_quota_inum;
64 if (sb->s_usr_quota_inum &&
65 (sb->s_usr_quota_inum != EXT4_USR_QUOTA_INO) &&
66 fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
67 move_quota_inode(fs, sb->s_usr_quota_inum, EXT4_USR_QUOTA_INO,
69 sb->s_usr_quota_inum = EXT4_USR_QUOTA_INO;
72 pctx.ino = sb->s_grp_quota_inum;
73 if (sb->s_grp_quota_inum &&
74 (sb->s_grp_quota_inum != EXT4_GRP_QUOTA_INO) &&
75 fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
76 move_quota_inode(fs, sb->s_grp_quota_inum, EXT4_GRP_QUOTA_INO,
78 sb->s_grp_quota_inum = EXT4_GRP_QUOTA_INO;