f2fs: check free sections before disable checkpoint

[PATCH] f2fs: check free sections before disable checkpoint

Posted by Wu Bo 1 year, 12 months ago

'f2fs_is_checkpoint_ready()' checks free sections. If there is not
enough free sections, most f2fs operations will return -ENOSPC when
checkpoint is disabled.

It would be better to check free sections before disable checkpoint.

Signed-off-by: Wu Bo <bo.wu@vivo.com>
---
 fs/f2fs/segment.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 727d016318f9..8f8c0bb75be1 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -906,6 +906,8 @@ int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable)
 	if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) &&
 		dirty_segments(sbi) > ovp_hole_segs)
 		return -EAGAIN;
+	if (has_not_enough_free_secs(sbi, 0, 0))
+		return -EAGAIN;
 	return 0;
 }
 
-- 
2.25.1

Re: [PATCH] f2fs: check free sections before disable checkpoint

Posted by Chao Yu 1 year, 11 months ago

On 2023/12/29 11:25, Wu Bo wrote:
> 'f2fs_is_checkpoint_ready()' checks free sections. If there is not
> enough free sections, most f2fs operations will return -ENOSPC when
> checkpoint is disabled.
> 
> It would be better to check free sections before disable checkpoint.
> 
> Signed-off-by: Wu Bo <bo.wu@vivo.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,