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From: Hou Tao <houtao1@huawei.com>
To: fstests@vger.kernel.org
Cc: guaneryu@gmail.com, linux-xfs@vger.kernel.org,
	darrick.wong@oracle.com, cmaiolino@redhat.com
Subject: [PATCH v3 1/4] dmflakey: support multiple dm targets for a dm-flakey device
Date: Thu, 9 Nov 2017 15:32:49 +0800	[thread overview]
Message-ID: <20171109073252.36001-2-houtao1@huawei.com> (raw)
In-Reply-To: <20171109073252.36001-1-houtao1@huawei.com>

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 <houtao1@huawei.com>
---
 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


  reply	other threads:[~2017-11-09  7:26 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-09  7:32 [PATCH v3 0/4] test for XFS umount hang caused by the pending dquota log item in AIL Hou Tao
2017-11-09  7:32 ` Hou Tao [this message]
2017-11-09  8:56   ` [PATCH v3 1/4] dmflakey: support multiple dm targets for a dm-flakey device Eryu Guan
2017-11-09  7:32 ` [PATCH v3 2/4] dmflakey: support error_writes feature for dm-flakey Hou Tao
2017-11-09  8:57   ` Eryu Guan
2017-11-09  7:32 ` [PATCH v3 3/4] xfs: test for umount hang caused by the pending dquota log item in AIL Hou Tao
2017-11-09  9:05   ` Eryu Guan
2017-12-05  0:47   ` Darrick J. Wong
2018-01-10  0:20     ` Darrick J. Wong
2017-11-09  7:32 ` [PATCH v3 4/4] common/rc: factor out _scratch_xfs_[get|set]_sb_field Hou Tao
2017-11-09 17:02   ` Darrick J. Wong
2017-11-09  8:54 ` [PATCH v3 0/4] test for XFS umount hang caused by the pending dquota log item in AIL Eryu Guan
2017-11-21 16:35   ` Carlos Maiolino
2017-11-20 15:13 ` Carlos Maiolino
2017-11-21 15:49 ` Carlos Maiolino

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