[Xen-devel] [PATCH v3 32/41] crypt: 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: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: linux-crypto@xxxxxxxxxxxxxxx
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 crypto/af_alg.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 879cf23f7489..edd358ea64da 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -428,10 +428,7 @@ static void af_alg_link_sg(struct af_alg_sgl *sgl_prev,
 
 void af_alg_free_sg(struct af_alg_sgl *sgl)
 {
-       int i;
-
-       for (i = 0; i < sgl->npages; i++)
-               put_page(sgl->pages[i]);
+       put_user_pages(sgl->pages, sgl->npages);
 }
 EXPORT_SYMBOL_GPL(af_alg_free_sg);
 
@@ -668,7 +665,7 @@ static void af_alg_free_areq_sgls(struct af_alg_async_req 
*areq)
                for_each_sg(tsgl, sg, areq->tsgl_entries, i) {
                        if (!sg_page(sg))
                                continue;
-                       put_page(sg_page(sg));
+                       put_user_page(sg_page(sg));
                }
 
                sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl));
-- 
2.22.0


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