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f2fs: flush pending checkpoints when freezing super

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This avoids -EINVAL when trying to freeze f2fs.

Cc: stable@vger.kernel.org
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2022-08-19 15:52:02 -07:00
committed by Jaegeuk Kim
parent df9a5e701c
commit 05677a317e
3 changed files with 21 additions and 9 deletions
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5
fs/f2fs/super.c
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@@ -1657,9 +1657,8 @@ static int f2fs_freeze(struct super_block *sb)
if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
return -EINVAL;
/* ensure no checkpoint required */
if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list))
return -EINVAL;
/* Let's flush checkpoints and stop the thread. */
f2fs_flush_ckpt_thread(F2FS_SB(sb));
/* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
set_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);