On 03/23, Chao Yu wrote:
> On 2023/3/13 17:48, Yonggil Song wrote:
> > When using f2fs on a zoned block device with 2MiB zone size, IO errors
> > occurs because f2fs tries to write data to a zone that has not been reset.
> >
> > The cause is that f2fs tries to discard multiple zones at once. This is
> > caused by a condition in f2fs_clear_prefree_segments that does not check
> > for zoned block devices when setting the discard range. This leads to
> > invalid reset commands and write pointer mismatches.
> >
> > This patch fixes the zoned block device with 2MiB zone size to reset one
> > zone at a time.
> >
> > Signed-off-by: Yonggil Song <yonggil.s...@samsung.com>
> > ---
> > fs/f2fs/segment.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> > index acf3d3fa4363..2b6cb6df623b 100644
> > --- a/fs/f2fs/segment.c
> > +++ b/fs/f2fs/segment.c
> > @@ -1953,7 +1953,8 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info
> > *sbi,
> > (end - 1) <= cpc->trim_end)
> > continue;
> > - if (!f2fs_lfs_mode(sbi) || !__is_large_section(sbi)) {
> > + if (!f2fs_sb_has_blkzoned(sbi) &&
>
> Could you please add one line comment here for this change?
This was merged in -dev a while ago. I don't think this would be critical
to rebase it again.
>
> Otherwise it looks good to me.
>
> Thanks,
>
> > + (!f2fs_lfs_mode(sbi) || !__is_large_section(sbi))) {
> > f2fs_issue_discard(sbi, START_BLOCK(sbi, start),
> > (end - start) << sbi->log_blocks_per_seg);
> > continue;
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
