[v2,07/18] ceph: use ->invalidatepage() length argument

->invalidatepage() aop now accepts range to invalidate so we can make
use of it in ceph_invalidatepage().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Cc: ceph-devel@vger.kernel.org
---
 fs/ceph/addr.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

On Tue, 5 Feb 2013, Lukas Czerner wrote:
> ->invalidatepage() aop now accepts range to invalidate so we can make
> use of it in ceph_invalidatepage().
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> Cc: ceph-devel@vger.kernel.org

Reviewed-by: Sage Weil <sage@inktank.com>

> ---
>  fs/ceph/addr.c |   12 ++++++------
>  1 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
> index 8953532..1e09410 100644
> --- a/fs/ceph/addr.c
> +++ b/fs/ceph/addr.c
> @@ -164,20 +164,20 @@ static void ceph_invalidatepage(struct page *page, unsigned int offset,
>  	if (!PageDirty(page))
>  		pr_err("%p invalidatepage %p page not dirty\n", inode, page);
>  
> -	if (offset == 0)
> +	if (offset == 0 && length == PAGE_CACHE_SIZE)
>  		ClearPageChecked(page);
>  
>  	ci = ceph_inode(inode);
> -	if (offset == 0) {
> -		dout("%p invalidatepage %p idx %lu full dirty page %u\n",
> -		     inode, page, page->index, offset);
> +	if (offset == 0 && length == PAGE_CACHE_SIZE) {
> +		dout("%p invalidatepage %p idx %lu full dirty page\n",
> +		     inode, page, page->index);
>  		ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
>  		ceph_put_snap_context(snapc);
>  		page->private = 0;
>  		ClearPagePrivate(page);
>  	} else {
> -		dout("%p invalidatepage %p idx %lu partial dirty page\n",
> -		     inode, page, page->index);
> +		dout("%p invalidatepage %p idx %lu partial dirty page %u(%u)\n",
> +		     inode, page, page->index, offset, length);
>  	}
>  }
>  
> -- 
> 1.7.7.6
> 
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