From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomohiro Kusumi Subject: [PATCH] fix hard-coded disk header chunk size for persistent snapshot Date: Wed, 12 May 2010 10:29:22 +0900 Message-ID: <4BEA0472.1060300@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: dm-devel@redhat.com, agk@redhat.com Cc: linux-kernel@vger.kernel.org, kusumi.tomohiro@jp.fujitsu.com List-Id: dm-devel.ids Hi, This patch fixes hard-coded value for the size of a chunk that includes disk header for persistent snapshot. It should be changed to existing macro NUM_SNAPSHOT_HDR_CHUNKS instead of using hard-coded value 1. Thanks, Tomohiro Kusumi Signed-off-by: Tomohiro Kusumi --- diff -aNur linux-2.6.34-rc7.org/drivers/md/dm-snap-persistent.c linux-2.6.34-rc7/drivers/md/dm-snap-persistent.c --- linux-2.6.34-rc7.org/drivers/md/dm-snap-persistent.c 2010-05-10 10:36:28.000000000 +0900 +++ linux-2.6.34-rc7/drivers/md/dm-snap-persistent.c 2010-05-12 09:21:50.000000000 +0900 @@ -266,7 +266,7 @@ */ static chunk_t area_location(struct pstore *ps, chunk_t area) { - return 1 + ((ps->exceptions_per_area + 1) * area); + return NUM_SNAPSHOT_HDR_CHUNKS + ((ps->exceptions_per_area + 1) * area); } /*