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f2fs: support quota sys files

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This patch supports hidden quota files in the system, which will be used for
Android. It requires up-to-date f2fs-tools later than v1.9.0.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2017-10-06 09:14:28 -07:00
parent 234a968961
commit ea6767337f
5 changed files with 157 additions and 19 deletions
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9
fs/f2fs/checkpoint.c
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@@ -615,6 +615,9 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
block_t start_blk, orphan_blocks, i, j;
unsigned int s_flags = sbi->sb->s_flags;
int err = 0;
#ifdef CONFIG_QUOTA
int quota_enabled;
#endif
if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG))
return 0;
@@ -627,8 +630,9 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
#ifdef CONFIG_QUOTA
/* Needed for iput() to work correctly and not trash data */
sbi->sb->s_flags |= MS_ACTIVE;
/* Turn on quotas so that they are updated correctly */
f2fs_enable_quota_files(sbi);
quota_enabled = f2fs_enable_quota_files(sbi, s_flags & MS_RDONLY);
#endif
start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi);
@@ -656,7 +660,8 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
out:
#ifdef CONFIG_QUOTA
/* Turn quotas off */
f2fs_quota_off_umount(sbi->sb);
if (quota_enabled)
f2fs_quota_off_umount(sbi->sb);
#endif
sbi->sb->s_flags = s_flags; /* Restore MS_RDONLY status */