Below patches added helper function to get the requested
number of devices for scratch and spare device
fstest: btrfs: add functions to get and put a device for replace target
fstests: btrfs: add functions to set and reset required number of SCRATCH_DEV_POOL
This patch makes use of them.
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
tests/btrfs/027 | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/tests/btrfs/027 b/tests/btrfs/027
index f0844a14f8e6..905dc0ebaa27 100755
--- a/tests/btrfs/027
+++ b/tests/btrfs/027
@@ -57,17 +57,22 @@ _require_command "$WIPEFS_PROG" wipefs
run_test()
{
local mkfs_opts=$1
- local saved_scratch_dev_pool=$SCRATCH_DEV_POOL
- local replace_dev=`echo $SCRATCH_DEV_POOL | awk '{print $NF}'`
+ local ndevs=`echo $SCRATCH_DEV_POOL | wc -w`
+
+ # reserve one for replace target
+ ((ndevs--))
+
+ _scratch_dev_pool_get $ndevs
+ _spare_dev_get
echo "Test $mkfs_opts" >>$seqres.full
- SCRATCH_DEV_POOL=`echo $SCRATCH_DEV_POOL | sed -e "s# *$replace_dev *##"`
_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1
# make sure we created btrfs with desired options
if [ $? -ne 0 ]; then
echo "mkfs $mkfs_opts failed"
- SCRATCH_DEV_POOL=$saved_scratch_dev_pool
+ _spare_dev_put
+ _scratch_dev_pool_put
return
fi
_scratch_mount >>$seqres.full 2>&1
@@ -89,17 +94,19 @@ run_test()
_scratch_mount -o degraded >>$seqres.full 2>&1
# replace $missing_dev with $replace_dev and scrub it to double-check
- $BTRFS_UTIL_PROG replace start -B -r $missing_dev_id $replace_dev \
+ $BTRFS_UTIL_PROG replace start -B -r $missing_dev_id $SPARE_DEV \
$SCRATCH_MNT -f >>$seqres.full 2>&1
if [ $? -ne 0 ]; then
echo "btrfs replace failed"
- SCRATCH_DEV_POOL=$saved_scratch_dev_pool
+ _spare_dev_put
+ _scratch_dev_pool_put
return
fi
$BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1
if [ $? -ne 0 ]; then
echo "btrfs scrub failed"
- SCRATCH_DEV_POOL=$saved_scratch_dev_pool
+ _spare_dev_put
+ _scratch_dev_pool_put
return
fi
@@ -107,7 +114,8 @@ run_test()
# we called _require_scratch_nocheck instead of _require_scratch
# do check after test for each profile config
_check_scratch_fs
- SCRATCH_DEV_POOL=$saved_scratch_dev_pool
+ _spare_dev_put
+ _scratch_dev_pool_put
}
echo "Silence is golden"
--
2.7.0
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