[PATCHi RFC] fstest: btrfs/158 fix miss-aligned stripe and device

[Anand Jain <anand.jain@oracle.com>]

We changed the order of the allocation on the devices, and
so the test cases which are hard coded to find specific stripe
on the specific device gets failed. So fix it with the new layout.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
Qu, Right we need to fix the dev in the test case as well.
    I saw your patches bit late. Here is what I had.. you may
    use it. So I am marking this patch as RFC.
Thanks.

 tests/btrfs/158     | 10 +++++-----
 tests/btrfs/158.out |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/tests/btrfs/158 b/tests/btrfs/158
index 603e8bea9b7e..7f2066384f55 100755
--- a/tests/btrfs/158
+++ b/tests/btrfs/158
@@ -76,14 +76,14 @@ _scratch_unmount
 
 stripe_0=`get_physical_stripe0`
 stripe_1=`get_physical_stripe1`
-dev4=`echo $SCRATCH_DEV_POOL | awk '{print $4}'`
-dev3=`echo $SCRATCH_DEV_POOL | awk '{print $3}'`
+dev1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'`
+dev2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'`
 
 # step 2: corrupt the 1st and 2nd stripe (stripe 0 and 1)
-echo "step 2......simulate bitrot at offset $stripe_0 of device_4($dev4) and offset $stripe_1 of device_3($dev3)" >>$seqres.full
+echo "step 2......simulate bitrot at offset $stripe_0 of device_1($dev1) and offset $stripe_1 of device_2($dev2)" >>$seqres.full
 
-$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $stripe_0 64K" $dev4 | _filter_xfs_io
-$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $stripe_1 64K" $dev3 | _filter_xfs_io
+$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $stripe_0 64K" $dev1 | _filter_xfs_io
+$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $stripe_1 64K" $dev2 | _filter_xfs_io
 
 # step 3: scrub filesystem to repair the bitrot
 echo "step 3......repair the bitrot" >> $seqres.full
diff --git a/tests/btrfs/158.out b/tests/btrfs/158.out
index 1f5ad3f76917..5cdaeb238c62 100644
--- a/tests/btrfs/158.out
+++ b/tests/btrfs/158.out
@@ -1,9 +1,9 @@
 QA output created by 158
 wrote 131072/131072 bytes at offset 0
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 9437184
+wrote 65536/65536 bytes at offset 22020096
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-wrote 65536/65536 bytes at offset 9437184
+wrote 65536/65536 bytes at offset 1048576
 XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 0000000 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa
 *
-- 
1.8.3.1