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Subject[xfstests PATCH v2 2/3] ext4: allow ext4 to use $SCRATCH_LOGDEV
Date
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 <jlayton@redhat.com>
---
common/rc | 3 +++
1 file changed, 3 insertions(+)

diff --git a/common/rc b/common/rc
index 257b1903359d..8b815d9c8c33 100644
--- a/common/rc
+++ b/common/rc
@@ -675,6 +675,9 @@ _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>$tmp.mkfsstd
mkfs_status=$?
--
2.9.3
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