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 ?
Thanks.
> 1.8.1.3.566.gaa39828
>
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