Re: [PATCH] ceph: refactor readpage_nounlock() to make the logic clearer

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On Wed, May 28, 2014 at 3:09 PM, Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx> wrote:
> If the return value of ceph_osdc_readpages() is not negative,
> it is certainly greater than or equal to zero.
>
> Remove the useless condition judgment and redundant braces.
>
> Signed-off-by: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx>
> ---
>  fs/ceph/addr.c | 17 +++++++----------
>  1 file changed, 7 insertions(+), 10 deletions(-)
>
> diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
> index b53278c..6aa2e3f 100644
> --- a/fs/ceph/addr.c
> +++ b/fs/ceph/addr.c
> @@ -211,18 +211,15 @@ static int readpage_nounlock(struct file *filp, struct page *page)
>                 SetPageError(page);
>                 ceph_fscache_readpage_cancel(inode, page);
>                 goto out;
> -       } else {
> -               if (err < PAGE_CACHE_SIZE) {
> -               /* zero fill remainder of page */
> -                       zero_user_segment(page, err, PAGE_CACHE_SIZE);
> -               } else {
> -                       flush_dcache_page(page);
> -               }
>         }
> -       SetPageUptodate(page);
> +       if (err < PAGE_CACHE_SIZE)
> +               /* zero fill remainder of page */
> +               zero_user_segment(page, err, PAGE_CACHE_SIZE);
> +       else
> +               flush_dcache_page(page);
>
> -       if (err >= 0)
> -               ceph_readpage_to_fscache(inode, page);
> +       SetPageUptodate(page);
> +       ceph_readpage_to_fscache(inode, page);
>
>  out:
>         return err < 0 ? err : 0;
> --

Added to testing branch of ceph-client

Thanks
Yan, Zheng


> 1.8.1.2
>
>
> .
>
>
>
>
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