[PATCH v3 40/41] mm/mempolicy.c: convert put_page() to put_user_page*()

john.hubbard at gmail.com john.hubbard at gmail.com
Wed Aug 7 01:33:39 UTC 2019

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

This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").

Cc: Andrea Arcangeli <aarcange at redhat.com>
Cc: Anshuman Khandual <anshuman.khandual at arm.com>
Cc: David Rientjes <rientjes at google.com>
Cc: Dominik Brodowski <linux at dominikbrodowski.net>
Cc: Kirill A. Shutemov <kirill.shutemov at linux.intel.com>
Cc: Michal Hocko <mhocko at suse.com>
Cc: Vlastimil Babka <vbabka at suse.cz>
Cc: zhong jiang <zhongjiang at huawei.com>
Signed-off-by: John Hubbard <jhubbard at nvidia.com>
 mm/mempolicy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index f48693f75b37..76a8e935e2e6 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -832,7 +832,7 @@ static int lookup_node(struct mm_struct *mm, unsigned long addr)
 	err = get_user_pages_locked(addr & PAGE_MASK, 1, 0, &p, &locked);
 	if (err >= 0) {
 		err = page_to_nid(p);
-		put_page(p);
+		put_user_page(p);
 	if (locked)

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