Commit 059d8442 authored by Huang Shijie's avatar Huang Shijie Committed by Linus Torvalds

mm/rmap.c: use the pra.mapcount to do the check

We have the pra.mapcount already, and there is no need to call the
page_mapped() which may do some complicated computing for compound page.

Link: http://lkml.kernel.org/r/20190404054828.2731-1-sjhuang@iluvatar.aiSigned-off-by: default avatarHuang Shijie <sjhuang@iluvatar.ai>
Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cfcbfb13
...@@ -850,7 +850,7 @@ int page_referenced(struct page *page, ...@@ -850,7 +850,7 @@ int page_referenced(struct page *page,
}; };
*vm_flags = 0; *vm_flags = 0;
if (!page_mapped(page)) if (!pra.mapcount)
return 0; return 0;
if (!page_rmapping(page)) if (!page_rmapping(page))
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment