[PATCH 03/34] net/ceph: convert put_page() to put_user_page*()

Jeff Layton jlayton at kernel.org
Fri Aug 2 22:32:33 UTC 2019


On Thu, 2019-08-01 at 19:19 -0700, john.hubbard at gmail.com wrote:
> From: John Hubbard <jhubbard at nvidia.com>
> 
> For pages that were retained via get_user_pages*(), release those pages
> via the new put_user_page*() routines, instead of via put_page() or
> release_pages().
> 
> This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
> ("mm: introduce put_user_page*(), placeholder versions").
> 
> Cc: Ilya Dryomov <idryomov at gmail.com>
> Cc: Sage Weil <sage at redhat.com>
> Cc: David S. Miller <davem at davemloft.net>
> Cc: ceph-devel at vger.kernel.org
> Cc: netdev at vger.kernel.org
> Signed-off-by: John Hubbard <jhubbard at nvidia.com>
> ---
>  net/ceph/pagevec.c | 8 +-------
>  1 file changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
> index 64305e7056a1..c88fff2ab9bd 100644
> --- a/net/ceph/pagevec.c
> +++ b/net/ceph/pagevec.c
> @@ -12,13 +12,7 @@
>  
>  void ceph_put_page_vector(struct page **pages, int num_pages, bool dirty)
>  {
> -	int i;
> -
> -	for (i = 0; i < num_pages; i++) {
> -		if (dirty)
> -			set_page_dirty_lock(pages[i]);
> -		put_page(pages[i]);
> -	}
> +	put_user_pages_dirty_lock(pages, num_pages, dirty);
>  	kvfree(pages);
>  }
>  EXPORT_SYMBOL(ceph_put_page_vector);

This patch looks sane enough. Assuming that the earlier patches are OK:

Acked-by: Jeff Layton <jlayton at kernel.org>



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