From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Yu Subject: Re: [PATCH 4/4] f2fs: call f2fs_balance_fs only when node was changed Date: Thu, 24 Dec 2015 13:48:34 +0800 Message-ID: <015301d13e0e$d3a7aa60$7af6ff20$@samsung.com> References: <1450832388-29118-1-git-send-email-jaegeuk@kernel.org> <1450832388-29118-4-git-send-email-jaegeuk@kernel.org> <20151223191428.GE30505@jaegeuk.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aBymD-0007yx-RO for linux-f2fs-devel@lists.sourceforge.net; Thu, 24 Dec 2015 05:49:25 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES128-SHA:128) (Exim 4.76) id 1aBymC-0002bj-1T for linux-f2fs-devel@lists.sourceforge.net; Thu, 24 Dec 2015 05:49:25 +0000 Received: from epcpsbgm1new.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout2.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NZU00HI5LI49DD0@mailout2.samsung.com> for linux-f2fs-devel@lists.sourceforge.net; Thu, 24 Dec 2015 14:49:16 +0900 (KST) In-reply-to: <20151223191428.GE30505@jaegeuk.local> Content-language: zh-cn List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: 'Jaegeuk Kim' , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net > -----Original Message----- > From: Jaegeuk Kim [mailto:jaegeuk@kernel.org] > Sent: Thursday, December 24, 2015 3:14 AM > To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org; > linux-f2fs-devel@lists.sourceforge.net > Subject: Re: [f2fs-dev] [PATCH 4/4] f2fs: call f2fs_balance_fs only when node was changed > > Change log v2: > - add dio case > > >From c2d16a526371954671f9c8cff5f09f9d230f7993 Mon Sep 17 00:00:00 2001 > From: Jaegeuk Kim > Date: Tue, 22 Dec 2015 13:23:35 -0800 > Subject: [PATCH] f2fs: call f2fs_balance_fs only when node was changed > > If user tries to update or read data, we don't need to call f2fs_balance_fs > which triggers f2fs_gc, which increases unnecessary long latency. > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu ------------------------------------------------------------------------------