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/quotaio.h"
20 static void move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino,
21 ext2_ino_t to_ino, int qtype)
23 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 retval = ext2fs_read_inode(fs, from_ino, &inode);
33 com_err("ext2fs_read_inode", retval, "%s",
34 _("in move_quota_inode"));
38 inode.i_links_count = 1;
39 inode.i_mode = LINUX_S_IFREG | 0600;
40 inode.i_flags = EXT2_IMMUTABLE_FL;
41 if (fs->super->s_feature_incompat &
42 EXT3_FEATURE_INCOMPAT_EXTENTS)
43 inode.i_flags |= EXT4_EXTENTS_FL;
45 retval = ext2fs_write_new_inode(fs, to_ino, &inode);
47 com_err("ext2fs_write_new_inode", retval, "%s",
48 _("in move_quota_inode"));
52 /* unlink the old inode */
53 quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name);
54 ext2fs_unlink(fs, EXT2_ROOT_INO, qf_name, from_ino, 0);
55 ext2fs_inode_alloc_stats(fs, from_ino, -1);
56 /* Clear out the original inode in the inode-table block. */
57 memset(&inode, 0, sizeof(struct ext2_inode));
58 ext2fs_write_inode(fs, from_ino, &inode);
61 void e2fsck_hide_quota(e2fsck_t ctx)
63 struct ext2_super_block *sb = ctx->fs->super;
64 struct problem_context pctx;
65 ext2_filsys fs = ctx->fs;
67 clear_problem_context(&pctx);
69 if ((ctx->options & E2F_OPT_READONLY) ||
70 !(sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA))
73 pctx.ino = sb->s_usr_quota_inum;
74 if (sb->s_usr_quota_inum &&
75 (sb->s_usr_quota_inum != EXT4_USR_QUOTA_INO) &&
76 fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
77 move_quota_inode(fs, sb->s_usr_quota_inum, EXT4_USR_QUOTA_INO,
79 sb->s_usr_quota_inum = EXT4_USR_QUOTA_INO;
82 pctx.ino = sb->s_grp_quota_inum;
83 if (sb->s_grp_quota_inum &&
84 (sb->s_grp_quota_inum != EXT4_GRP_QUOTA_INO) &&
85 fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
86 move_quota_inode(fs, sb->s_grp_quota_inum, EXT4_GRP_QUOTA_INO,
88 sb->s_grp_quota_inum = EXT4_GRP_QUOTA_INO;