From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx135.postini.com [74.125.245.135]) by kanga.kvack.org (Postfix) with SMTP id 3D2786B0005 for ; Mon, 18 Mar 2013 21:23:25 -0400 (EDT) Received: from /spool/local by e23smtp09.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 19 Mar 2013 11:15:18 +1000 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [9.190.235.21]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id B73382CE8051 for ; Tue, 19 Mar 2013 12:23:18 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r2J1NEXg57278630 for ; Tue, 19 Mar 2013 12:23:14 +1100 Received: from d23av01.au.ibm.com (loopback [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2J1NIhd029688 for ; Tue, 19 Mar 2013 12:23:18 +1100 Date: Tue, 19 Mar 2013 09:23:16 +0800 From: Wanpeng Li Subject: Re: [PATCH v3 2/5] zero-filled pages awareness Message-ID: <20130319012316.GB17584@hacker.(null)> Reply-To: Wanpeng Li References: <1363314860-22731-1-git-send-email-liwanp@linux.vnet.ibm.com> <1363314860-22731-3-git-send-email-liwanp@linux.vnet.ibm.com> <20130319005023.GA19891@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130319005023.GA19891@kroah.com> Sender: owner-linux-mm@kvack.org List-ID: To: Greg Kroah-Hartman Cc: Andrew Morton , Dan Magenheimer , Seth Jennings , Konrad Rzeszutek Wilk , Minchan Kim , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Mon, Mar 18, 2013 at 05:50:23PM -0700, Greg Kroah-Hartman wrote: >On Fri, Mar 15, 2013 at 10:34:17AM +0800, Wanpeng Li wrote: >> Compression of zero-filled pages can unneccessarily cause internal >> fragmentation, and thus waste memory. This special case can be >> optimized. >> >> This patch captures zero-filled pages, and marks their corresponding >> zcache backing page entry as zero-filled. Whenever such zero-filled >> page is retrieved, we fill the page frame with zero. >> >> Acked-by: Dan Magenheimer >> Signed-off-by: Wanpeng Li > >This patch applies with a bunch of fuzz, meaning it wasn't made against >the latest tree, which worries me. Care to redo it, and the rest of the >series, and resend it? Ok, sorry for the confusing, I will do it today, thanks Greg. :-) Regards, Wanpeng Li > >thanks, > >greg k-h > >-- >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 -- 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