lkml.org 
[lkml]   [2020]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [f2fs-dev] [PATCH] f2fs: flush dirty meta pages when flushing them
On 05/18, Chao Yu wrote:
> On 2020/5/15 22:45, Jaegeuk Kim wrote:
> > On 05/15, Chao Yu wrote:
> >> On 2020/5/15 10:15, Jaegeuk Kim wrote:
> >>> Let's guarantee flusing dirty meta pages to avoid infinite loop.
> >>
> >> What's the root cause? Race case or meta page flush failure?
> >
> > Investigating, but at least, this can avoid the inifinite loop there.
>
> Hmm... this fix may cover the root cause..

We're getting reached out to one related to this issue where single SSA
page is dirtied at the moment. Anyway, I think it'd be fine to get this
as we can detect any fs consistency issue by fsck. So far, I haven't seen
any problem in all my local stress tests.

>
> Thanks,
>
> >
> > V2:
> >
> >>From c60ce8e7178004fd6cba96e592247e43b5fd98d8 Mon Sep 17 00:00:00 2001
> > From: Jaegeuk Kim <jaegeuk@kernel.org>
> > Date: Wed, 13 May 2020 21:12:53 -0700
> > Subject: [PATCH] f2fs: flush dirty meta pages when flushing them
> >
> > Let's guarantee flusing dirty meta pages to avoid infinite loop.
> >
> > Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> > ---
> > fs/f2fs/checkpoint.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> > index 620a386d82c1a..3dc3ac6fe1432 100644
> > --- a/fs/f2fs/checkpoint.c
> > +++ b/fs/f2fs/checkpoint.c
> > @@ -1266,6 +1266,9 @@ void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type)
> > if (unlikely(f2fs_cp_error(sbi)))
> > break;
> >
> > + if (type == F2FS_DIRTY_META)
> > + f2fs_sync_meta_pages(sbi, META, LONG_MAX,
> > + FS_CP_META_IO);
> > io_schedule_timeout(DEFAULT_IO_TIMEOUT);
> > }
> > finish_wait(&sbi->cp_wait, &wait);
> >

\
 
 \ /
  Last update: 2020-05-18 19:54    [W:0.049 / U:4.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site