X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fmlock.c;h=b1eb53634005606298d115ac5cdeb90cac923957;hb=HEAD;hp=4e1a68162285688ad1f1158681a6908e7e237924;hpb=03c7287dd22c18815964219c9a2e75054cd004df;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/mlock.c b/mm/mlock.c
index 4e1a6816..b1eb536 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -79,6 +79,7 @@ void clear_page_mlock(struct page *page)
  */
 void mlock_vma_page(struct page *page)
 {
+	/* Serialize with page migration */
 	BUG_ON(!PageLocked(page));
 
 	if (!TestSetPageMlocked(page)) {
@@ -174,6 +175,7 @@ unsigned int munlock_vma_page(struct page *page)
 	unsigned int nr_pages;
 	struct zone *zone = page_zone(page);
 
+	/* For try_to_munlock() and to serialize with page migration */
 	BUG_ON(!PageLocked(page));
 
 	/*