[Xen-devel] [PATCH v3 03/41] net/xdp: 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").

Acked-by: Björn Töpel <bjorn.topel@xxxxxxxxx>
Cc: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 net/xdp/xdp_umem.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 83de74ca729a..17c4b3d3dc34 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -166,14 +166,7 @@ void xdp_umem_clear_dev(struct xdp_umem *umem)
 
 static void xdp_umem_unpin_pages(struct xdp_umem *umem)
 {
-       unsigned int i;
-
-       for (i = 0; i < umem->npgs; i++) {
-               struct page *page = umem->pgs[i];
-
-               set_page_dirty_lock(page);
-               put_page(page);
-       }
+       put_user_pages_dirty_lock(umem->pgs, umem->npgs, true);
 
        kfree(umem->pgs);
        umem->pgs = NULL;
-- 
2.22.0


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