Re: [PATCH V2 linux-next] nfs: kmap can't fail

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On Wed, 2017-04-26 at 20:45 +0200, Fabian Frederick wrote:
> Remove NULL test on kmap()
> 
> Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
> ---
> 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@xxxxxxxxxxxxxxx
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