From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga04-in.huawei.com ([45.249.212.190]:9982 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750837AbdKIH0a (ORCPT ); Thu, 9 Nov 2017 02:26:30 -0500 From: Hou Tao Subject: [PATCH v3 1/4] dmflakey: support multiple dm targets for a dm-flakey device Date: Thu, 9 Nov 2017 15:32:49 +0800 Message-ID: <20171109073252.36001-2-houtao1@huawei.com> In-Reply-To: <20171109073252.36001-1-houtao1@huawei.com> References: <20171109073252.36001-1-houtao1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Sender: fstests-owner@vger.kernel.org To: fstests@vger.kernel.org Cc: guaneryu@gmail.com, linux-xfs@vger.kernel.org, darrick.wong@oracle.com, cmaiolino@redhat.com List-ID: dm-flakey can be used to emulate IO write error, however, when we also need to prevent the IO error for a specific range of the block device (eg., the log region of a XFS), we need to specify multiple dm targets for the dm device. Option --table can not accommodate the multiple dm targets case, so let dmsetup get the possible-multiple-targets table from standard input. Signed-off-by: Hou Tao --- common/dmflakey | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/common/dmflakey b/common/dmflakey index 4434307..16b82d2 100644 --- a/common/dmflakey +++ b/common/dmflakey @@ -77,7 +77,7 @@ _load_flakey_table() $DMSETUP_PROG suspend $suspend_opt flakey-test [ $? -ne 0 ] && _fatal "failed to suspend flakey-test" - $DMSETUP_PROG load flakey-test --table "$table" + echo -e "$table" | $DMSETUP_PROG load flakey-test [ $? -ne 0 ] && _fatal "failed to load table into flakey-test" $DMSETUP_PROG resume flakey-test -- 2.9.5