From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx193.postini.com [74.125.245.193]) by kanga.kvack.org (Postfix) with SMTP id 0B2E96B0033 for ; Wed, 3 Jul 2013 14:42:48 -0400 (EDT) Date: Wed, 3 Jul 2013 20:42:13 +0200 From: Peter Zijlstra Subject: Re: [PATCH 12/13] mm: numa: Scan pages with elevated page_mapcount Message-ID: <20130703184213.GE18898@dyad.programming.kicks-ass.net> References: <1372861300-9973-1-git-send-email-mgorman@suse.de> <1372861300-9973-13-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1372861300-9973-13-git-send-email-mgorman@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML 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. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org