X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmlock.c;h=39b3a7d4bd842d9cbedc451d9c7c4afd00f66f2a;hb=775b8c741b47590f6f472e16e41064e446bb5ecf;hp=4f4f53bdc65de30d11c637b2bc745aa1333a16bd;hpb=ff4d7fa8c32f6ec513fb792c060809ec82d53ea4;p=pandora-kernel.git

diff --git a/mm/mlock.c b/mm/mlock.c
index 4f4f53bdc65d..39b3a7d4bd84 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -78,6 +78,7 @@ 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)) {
@@ -105,6 +106,7 @@ void mlock_vma_page(struct page *page)
  */
 void munlock_vma_page(struct page *page)
 {
+	/* For try_to_munlock() and to serialize with page migration */
 	BUG_ON(!PageLocked(page));
 
 	if (TestClearPageMlocked(page)) {