linux-kernel - Re: [PATCH] nfs client: kill compile warning on NOMMU machine

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Date:	Thu, 5 Feb 2009 17:02:37 +0800
From:	Bryan Wu <cooloney@...nel.org>
To:	Trond.Myklebust@...app.com, linux-nfs@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Bryan Wu <cooloney@...nel.org>
Subject: Re: [PATCH] nfs client: kill compile warning on NOMMU machine

Hi guys,

Is it possible to merge this patch?

Thanks
-Bryan

On Thu, Nov 6, 2008 at 5:15 PM, Bryan Wu <cooloney@...nel.org> wrote:
> On nommu machine such as Blackfin, when compling NFS we got an warning about
> nfs_file_mmap() function defined but not used.
>
> This patch kills this warning.
>
> Signed-off-by: Bryan Wu <cooloney@...nel.org>
> ---
>  fs/nfs/file.c |   16 ++++++++++++----
>  1 files changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/fs/nfs/file.c b/fs/nfs/file.c
> index d319b49..66b8b8e 100644
> --- a/fs/nfs/file.c
> +++ b/fs/nfs/file.c
> @@ -64,11 +64,7 @@ const struct file_operations nfs_file_operations = {
>        .write          = do_sync_write,
>        .aio_read       = nfs_file_read,
>        .aio_write      = nfs_file_write,
> -#ifdef CONFIG_MMU
>        .mmap           = nfs_file_mmap,
> -#else
> -       .mmap           = generic_file_mmap,
> -#endif
>        .open           = nfs_file_open,
>        .flush          = nfs_file_flush,
>        .release        = nfs_file_release,
> @@ -294,6 +290,7 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
>        return res;
>  }
>
> +#ifdef CONFIG_MMU
>  static int
>  nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
>  {
> @@ -312,6 +309,17 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
>        }
>        return status;
>  }
> +#else
> +static int
> +nfs_file_mmap(struct file *file, struct vm_area_struct *vma)
> +{
> +       /* Kill warning: 'nfs_file_vm_ops' defined but not used */
> +       struct vm_operations_struct *vm_ops;
> +       vm_ops = &nfs_file_vm_ops;
> +
> +       return generic_file_mmap(file, vma);
> +}
> +#endif
>
>  /*
>  * Flush any dirty pages for this process, and check for write errors.
> --
> 1.5.6.3
>
--
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