[Xen-devel] [PATCH v3 27/41] mm/frame_vector.c: convert put_page() to put_user_page*()

[john.hubbard@xxxxxxxxx]

From: John Hubbard <jhubbard@xxxxxxxxxx>

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 Williams <dan.j.williams@xxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 mm/frame_vector.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/frame_vector.c b/mm/frame_vector.c
index c64dca6e27c2..f590badac776 100644
--- a/mm/frame_vector.c
+++ b/mm/frame_vector.c
@@ -120,7 +120,6 @@ EXPORT_SYMBOL(get_vaddr_frames);
  */
 void put_vaddr_frames(struct frame_vector *vec)
 {
-       int i;
        struct page **pages;
 
        if (!vec->got_ref)
@@ -133,8 +132,7 @@ void put_vaddr_frames(struct frame_vector *vec)
         */
        if (WARN_ON(IS_ERR(pages)))
                goto out;
-       for (i = 0; i < vec->nr_frames; i++)
-               put_page(pages[i]);
+       put_user_pages(pages, vec->nr_frames);
        vec->got_ref = false;
 out:
        vec->nr_frames = 0;
-- 
2.22.0


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