lkml.org 
[lkml]   [2013]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 12/13] mm: numa: Scan pages with elevated page_mapcount
On Wed, Jul 03, 2013 at 03:21:39PM +0100, Mel Gorman wrote:
> @@ -1587,10 +1588,11 @@ int migrate_misplaced_page(struct page *page, int node)
> LIST_HEAD(migratepages);
>
> /*
> + * Don't migrate file pages that are mapped in multiple processes
> + * with execute permissions as they are probably shared libraries.
> */
> + if (page_mapcount(page) != 1 && page_is_file_cache(page) &&
> + (vma->vm_flags & VM_EXEC))
> goto out;

So we will migrate DSOs that are mapped but once. That's fair enough I suppose.


\
 
 \ /
  Last update: 2013-07-04 01:01    [W:0.335 / U:0.552 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site