From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id 602EE6B0012 for ; Fri, 6 May 2011 13:05:46 -0400 (EDT) Date: Fri, 6 May 2011 19:05:42 +0200 From: Andi Kleen Subject: Re: Batch locking for rmap fork/exit processing Message-ID: <20110506170542.GG11636@one.firstfloor.org> References: <1304623972-9159-1-git-send-email-andi@firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Linus Torvalds Cc: Andi Kleen , Andrew Morton , linux-mm@kvack.org, Andrea Arcangeli , Rik van Riel , tim.c.chen@linux.intel.com, lwoodman@redhat.com, mel@csn.ul.ie On Fri, May 06, 2011 at 09:44:40AM -0700, Linus Torvalds wrote: > Hmm. Andrew wasn't cc'd on this series, and usually things like this > go through the -mm tree > > Maybe Andrew saw it by virtue of the linux-mm list, but maybe he > didn't. So here he is cc'd directly. > > The series looks reasonable to me, Thanks. To be honest I'm not really happy about it, it's more a short term bandaid. anon_vma lock and file mapping i_mmap_lock lock are still very hot in the test, compared to .35. And I didn't find any way to improve i_mmap_lock. If someone has better ideas to fix this I would be interested. Still it's probably a useful short term bandaid. -Andi -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org