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| author |   Jaegeuk Kim <jaegeuk@kernel.org> | 2019-01-27 17:59:53 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2019-02-15 20:59:45 -0800 |
| commit | 0e0667b625cf64243df83171bff61f9d350b9ca5 (patch) | |
| tree | e21c5c3f05bc006dc337bf12f83689797d70ae62 /fs/f2fs | |
| parent | f2fs: avoid null pointer exception in dcc_info (diff) | |
| download | linux-dev-0e0667b625cf64243df83171bff61f9d350b9ca5.tar.xz linux-dev-0e0667b625cf64243df83171bff61f9d350b9ca5.zip | |
f2fs: flush quota blocks after turnning it off
After quota_off, we'll get some dirty blocks. If put_super don't have a chance
to flush them by checkpoint, it causes NULL pointer exception in end_io after
iput(node_inode). (e.g., by checkpoint=disable)
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 5e1f8573a17f..7694cb350734 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2026,6 +2026,12 @@ void f2fs_quota_off_umount(struct super_block *sb) set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); } } + /* + * In case of checkpoint=disable, we must flush quota blocks. + * This can cause NULL exception for node_inode in end_io, since + * put_super already dropped it. + */ + sync_filesystem(sb); } static void f2fs_truncate_quota_inode_pages(struct super_block *sb) |