mm/ksm.c: update get_user_pages() argument in comment
authorLi Chen <chenli@uniontech.com>
Tue, 7 Apr 2020 03:04:38 +0000 (20:04 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 7 Apr 2020 17:43:38 +0000 (10:43 -0700)
This updates get_user_pages()'s argument in ksm_test_exit()'s comment

Signed-off-by: Li Chen <chenli@uniontech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/30ac2417-f1c7-f337-0beb-df561295298c@uniontech.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/ksm.c

index d17c7d57d0d85648738ed9d38bcb38a72ceceec1..363ec81895612edab3e67647d655231ad8b2972d 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -455,7 +455,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm)
 /*
  * We use break_ksm to break COW on a ksm page: it's a stripped down
  *
- *     if (get_user_pages(addr, 1, 1, 1, &page, NULL) == 1)
+ *     if (get_user_pages(addr, 1, FOLL_WRITE, &page, NULL) == 1)
  *             put_page(page);
  *
  * but taking great care only to touch a ksm page, in a VM_MERGEABLE vma,