From: Jeff Layton Subject: [xfstests PATCH v3 2/5] ext4: allow ext4 to use $SCRATCH_LOGDEV Date: Wed, 31 May 2017 09:08:17 -0400 Message-ID: <20170531130820.17634-3-jlayton@redhat.com> References: <20170531130820.17634-1-jlayton@redhat.com> Cc: Andrew Morton , Al Viro , Jan Kara , tytso@mit.edu, axboe@kernel.dk, mawilcox@microsoft.com, ross.zwisler@linux.intel.com, corbet@lwn.net, dhowells@redhat.com, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-doc@vger.kernel.org To: fstests@vger.kernel.org Return-path: In-Reply-To: <20170531130820.17634-1-jlayton@redhat.com> Sender: linux-doc-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org The writeback error handling test requires that you put the journal on a separate device. This allows us to use dmerror to simulate data writeback failure, without affecting the journal. xfs already has infrastructure for this (a'la $SCRATCH_LOGDEV), so wire up the ext4 code so that it can do the same thing when _scratch_mkfs is called. Signed-off-by: Jeff Layton Reviewed-by: Darrick J. Wong --- common/rc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/common/rc b/common/rc index 743df427c047..391d36f373cd 100644 --- a/common/rc +++ b/common/rc @@ -676,6 +676,9 @@ _scratch_mkfs_ext4() local tmp=`mktemp` local mkfs_status + [ "$USE_EXTERNAL" = yes -a ! -z "$SCRATCH_LOGDEV" ] && \ + $mkfs_cmd -O journal_dev $SCRATCH_LOGDEV && \ + mkfs_cmd="$mkfs_cmd -J device=$SCRATCH_LOGDEV" _scratch_do_mkfs "$mkfs_cmd" "$mkfs_filter" $* 2>$tmp.mkfserr 1>$tmp.mkfsstd mkfs_status=$? -- 2.9.4