[26/34] mm/gup_benchmark.c: convert put_page() to put_user_page*()
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Message ID 20190802022005.5117-27-jhubbard@nvidia.com
State New
Headers show
Series
  • put_user_pages(): miscellaneous call sites
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Commit Message

john.hubbard@gmail.com Aug. 2, 2019, 2:19 a.m. UTC
From: John Hubbard <jhubbard@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: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 mm/gup_benchmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Keith Busch Aug. 2, 2019, 2:19 p.m. UTC | #1
On Thu, Aug 01, 2019 at 07:19:57PM -0700, john.hubbard@gmail.com wrote:
> From: John Hubbard <jhubbard@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: Dan Carpenter <dan.carpenter@oracle.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Keith Busch <keith.busch@intel.com>
> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Cc: YueHaibing <yuehaibing@huawei.com>
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>

Looks fine.

Reviewed-by: Keith Busch <keith.busch@intel.com>

>  mm/gup_benchmark.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c
> index 7dd602d7f8db..515ac8eeb6ee 100644
> --- a/mm/gup_benchmark.c
> +++ b/mm/gup_benchmark.c
> @@ -79,7 +79,7 @@ static int __gup_benchmark_ioctl(unsigned int cmd,
>  	for (i = 0; i < nr_pages; i++) {
>  		if (!pages[i])
>  			break;
> -		put_page(pages[i]);
> +		put_user_page(pages[i]);
>  	}
>  	end_time = ktime_get();
>  	gup->put_delta_usec = ktime_us_delta(end_time, start_time);
> --

Patch
diff mbox series

diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c
index 7dd602d7f8db..515ac8eeb6ee 100644
--- a/mm/gup_benchmark.c
+++ b/mm/gup_benchmark.c
@@ -79,7 +79,7 @@  static int __gup_benchmark_ioctl(unsigned int cmd,
 	for (i = 0; i < nr_pages; i++) {
 		if (!pages[i])
 			break;
-		put_page(pages[i]);
+		put_user_page(pages[i]);
 	}
 	end_time = ktime_get();
 	gup->put_delta_usec = ktime_us_delta(end_time, start_time);