btrfs/011: increase the runtime for replace cancel

This test exercises the btrfs replace cancel path, but in order to do
this we have to have enough work to do in order to successfully cancel
the balance, otherwise the test fails because the operation has
completed before we're able to cancel.  This test has a very low pass
rate because we do not generate a large enough file system for replace
to have enough work, passing around 5% of the time.  Increase the time
spent to 10x the time we wait for the replace to start its work before
we cancel, this allows us to consistently pass this test.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>

diff --git a/tests/btrfs/011 b/tests/btrfs/011
index ff52ada94a17d032087cb9819e567bb36337217b..d8b5a97827503296fff6d56683d30c5374cefc6f 100755 (executable)
--- a/tests/btrfs/011
+++ b/tests/btrfs/011
@@ -60,6 +60,7 @@ wait_time=1
 fill_scratch()
 {
        local fssize=$1
+       local with_cancel=$2
        local filler_pid
 
        # Fill inline extents.
@@ -88,7 +89,11 @@ fill_scratch()
        $XFS_IO_PROG -f -d -c "pwrite -b 64k 0 1E" "$SCRATCH_MNT/t_filler" &>\
                $tmp.filler_result &
        filler_pid=$!
-       sleep $((2 * $wait_time))
+       if [ "${with_cancel}" = "cancel" ]; then
+               sleep $((10 * $wait_time))
+       else
+               sleep $((2 * $wait_time))
+       fi
        kill -KILL $filler_pid &> /dev/null
        wait $filler_pid &> /dev/null
 
@@ -125,7 +130,7 @@ workout()
        _scratch_mount
        _require_fs_space $SCRATCH_MNT $((2 * 512 * 1024)) #2.5G
 
-       fill_scratch $fssize
+       fill_scratch $fssize $with_cancel
        _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
 
        echo -e "Replace from $source_dev to $SPARE_DEV\\n" >> $seqres.full