From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: Re: [PATCH] nodatacow fix Date: Tue, 05 Aug 2008 10:19:50 -0400 Message-ID: <1217945990.7611.72.camel@think.oraclecorp.com> References: <48986070.9010900@oracle.com> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-btrfs@vger.kernel.org To: Yan Zheng Return-path: In-Reply-To: <48986070.9010900@oracle.com> List-ID: On Tue, 2008-08-05 at 22:15 +0800, Yan Zheng wrote: > Hello, > > This patch adapts nodatacow code for the new data ordered code. Ordered > extents are used in all cases. It avoid writepage_start_hook kicking off > nodatacow IO contiguously. This patch also makes btrfs wait for ordered > extents before creating snapshots. It's important for nodatcow IO since > creating snapshots invalidates the results of reference checking. > Thanks Yan! Can you please change this to make it only wait for nodatacow ordered extents? -chris