Re: [PATCH 13/19] f2fs: fix return value of releasepage for node anddata

From: Jaegeuk Kim
Date: Mon Mar 18 2013 - 07:59:54 EST


2013-03-18 (ì), 20:39 +0900, Namjae Jeon:
> 2013/3/18, Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx>:
> > If the return value of releasepage is equal to zero, the page cannot be
> > reclaimed.
> > Instead, we should return 1 in order to reclaim clean pages.
> >
> > Signed-off-by: Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx>
> > ---
> > fs/f2fs/data.c | 4 +++-
> > fs/f2fs/node.c | 13 +++----------
> > 2 files changed, 6 insertions(+), 11 deletions(-)
> >
> > diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> > index 6616137..cd6b2cc 100644
> > --- a/fs/f2fs/data.c
> > +++ b/fs/f2fs/data.c
> > @@ -680,8 +680,10 @@ static void f2fs_invalidate_data_page(struct page
> > *page, unsigned long offset)
> >
> > static int f2fs_release_data_page(struct page *page, gfp_t wait)
> > {
> > + if (PageWriteback(page))
> > + return 0;
> > ClearPagePrivate(page);
> > - return 0;
> > + return 1;
> > }
> I have a question.
> Although PageWriteback is already checked in try_to_release_page,
> we need to check it again in f2fs_release_data_page ?

Oh, I made a mistake.
No need to check that.
Thanks,

>
> Thanks.
>
>
> > 1.8.1.3.566.gaa39828
> >
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--
Jaegeuk Kim
Samsung

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