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SubjectRe: [PATCH V2 linux-next] nfs: kmap can't fail
Date
On Wed, 2017-04-26 at 20:45 +0200, Fabian Frederick wrote:
> Remove NULL test on kmap()
>
> Signed-off-by: Fabian Frederick <fabf@skynet.be>
> ---
> V2: Remove ptr and return kmap(page) directly
> (Suggested by Anna Schumaker)
>
>  fs/nfs/dir.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
> index 3a188cb..12ed806b 100644
> --- a/fs/nfs/dir.c
> +++ b/fs/nfs/dir.c
> @@ -175,13 +175,9 @@ typedef struct {
>  static
>  struct nfs_cache_array *nfs_readdir_get_array(struct page *page)
>  {
> - void *ptr;
>   if (page == NULL)
>   return ERR_PTR(-EIO);
> - ptr = kmap(page);
> - if (ptr == NULL)
> - return ERR_PTR(-ENOMEM);
> - return ptr;
> + return kmap(page);
>  }
>  
>  static

There seems little value in having a wrapper to kmap... Can we perhaps
instead just get rid of both nfs_readdir_get_array and
nfs_readdir_release_array?

--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@primarydata.com
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