btrfs/154: remove test for fix that never landed

The btrfs/154 testcase fails if the kernel patch "btrfs: handle
dynamically reappearing missing device" isn't applied, but this patch was
never merged into the upstream kernel.

Delete the test so we have one less testcase that will always fail.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/btrfs/154

@@ -1,169 +0,0 @@
-#! /bin/bash
-# SPDX-License-Identifier: GPL-2.0
-# Copyright (c) 2017 Oracle.  All Rights Reserved.
-#
-# FS QA Test 154
-#
-# Test for reappearing missing device functionality.
-#   This test will fail without the btrfs kernel patch
-#   [PATCH] btrfs: handle dynamically reappearing missing device
-#
-seq=`basename $0`
-seqres=$RESULT_DIR/$seq
-echo "QA output created by $seq"
-
-here=`pwd`
-tmp=/tmp/$$
-status=1	# failure is the default!
-trap "_cleanup; exit \$status" 0 1 2 3 15
-
-_cleanup()
-{
-	cd /
-	rm -f $tmp.*
-}
-
-# get standard environment, filters and checks
-. ./common/rc
-. ./common/filter
-. ./common/module
-
-# remove previous $seqres.full before test
-rm -f $seqres.full
-
-# real QA test starts here
-
-_supported_fs btrfs
-_supported_os Linux
-_require_scratch_dev_pool 2
-_require_btrfs_forget_or_module_loadable
-
-_scratch_dev_pool_get 2
-
-DEV1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'`
-DEV2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'`
-
-echo DEV1=$DEV1 >> $seqres.full
-echo DEV2=$DEV2 >> $seqres.full
-
-# Balance won't be successful if filled too much
-DEV1_SZ=`blockdev --getsize64 $DEV1`
-DEV2_SZ=`blockdev --getsize64 $DEV2`
-
-# get min
-MAX_FS_SZ=`echo -e "$DEV1_SZ\n$DEV2_SZ" | sort -n | head -1`
-# Need disks with more than 2G
-if [ $MAX_FS_SZ -lt 2000000000 ]; then
-	_scratch_dev_pool_put
-	_notrun "Smallest dev size $MAX_FS_SZ, Need at least 2G"
-fi
-
-MAX_FS_SZ=100000000
-bs="1M"
-COUNT=$(($MAX_FS_SZ / 1000000))
-CHECKPOINT1=0
-CHECKPOINT2=0
-
-setup()
-{
-	echo >> $seqres.full
-	echo "MAX_FS_SZ=$MAX_FS_SZ COUNT=$COUNT" >> $seqres.full
-	echo "setup"
-	echo "-----setup-----" >> $seqres.full
-	_scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1
-	_scratch_mount >> $seqres.full 2>&1
-	dd if=/dev/urandom of="$SCRATCH_MNT"/tf bs=$bs count=1 \
-					>>$seqres.full 2>&1
-	_run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT}
-	_run_btrfs_util_prog filesystem df $SCRATCH_MNT
-	COUNT=$(( $COUNT - 1 ))
-	echo "unmount" >> $seqres.full
-	_scratch_unmount
-}
-
-degrade_mount_write()
-{
-	echo >> $seqres.full
-	echo "--degraded mount: max_fs_sz $max_fs_sz bytes--" >> $seqres.full
-	echo
-	echo "degraded mount"
-
-	echo "clean btrfs ko" >> $seqres.full
-	# un-scan the btrfs devices
-	_btrfs_forget_or_module_reload
-	_mount -o degraded $DEV1 $SCRATCH_MNT >>$seqres.full 2>&1
-	cnt=$(( $COUNT/10 ))
-	dd if=/dev/urandom of="$SCRATCH_MNT"/tf1 bs=$bs count=$cnt \
-					>>$seqres.full 2>&1
-	COUNT=$(( $COUNT - $cnt ))
-	_run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
-	_run_btrfs_util_prog filesystem df $SCRATCH_MNT
-	CHECKPOINT1=`md5sum $SCRATCH_MNT/tf1`
-	echo $SCRATCH_MNT/tf1:$CHECKPOINT1 >> $seqres.full
-}
-
-scan_missing_dev_and_write()
-{
-	echo >> $seqres.full
-	echo "--scan missing $DEV2--" >> $seqres.full
-	echo
-	echo "scan missing dev and write"
-
-	_run_btrfs_util_prog device scan $DEV2
-
-	echo >> $seqres.full
-
-	_run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT}
-	_run_btrfs_util_prog filesystem df ${SCRATCH_MNT}
-
-	dd if=/dev/urandom of="$SCRATCH_MNT"/tf2 bs=$bs count=$COUNT \
-						>>$seqres.full 2>&1
-	CHECKPOINT2=`md5sum $SCRATCH_MNT/tf2`
-	echo $SCRATCH_MNT/tf2:$CHECKPOINT2 >> $seqres.full
-}
-
-balance_convert()
-{
-	echo >> $seqres.full
-	echo "----- run balance -----" >> $seqres.full
-	echo
-	echo "run balance"
-
-	_run_btrfs_balance_start -dconvert=raid1 \
-				 -mconvert=raid1 $SCRATCH_MNT >> $seqres.full
-}
-
-verify()
-{
-	echo >> $seqres.full
-	echo "--mount reconstructed dev only and check md5sum--" >> $seqres.full
-	echo
-	echo "mount reconstructed dev only and check md5sum"
-	echo "unmount" >> $seqres.full
-
-	_scratch_unmount
-	_btrfs_forget_or_module_reload
-	_mount -o degraded $DEV2 $SCRATCH_MNT >>$seqres.full 2>&1
-	verify_checkpoint1=`md5sum $SCRATCH_MNT/tf1`
-	verify_checkpoint2=`md5sum $SCRATCH_MNT/tf2`
-
-	if [ "$verify_checkpoint1" != "$CHECKPOINT1" ]; then
-		echo "checkpoint1 on reappeared disk does not match after balance"
-	fi
-
-	if [ "$verify_checkpoint2" != "$CHECKPOINT2" ]; then
-		echo "checkpoint2 on reappeared disk does not match after balance"
-	fi
-}
-
-setup
-degrade_mount_write
-scan_missing_dev_and_write
-balance_convert
-verify
-
-$UMOUNT_PROG $DEV2
-_scratch_dev_pool_put
-
-status=0
-exit

tests/btrfs/154.out

@@ -1,10 +0,0 @@
-QA output created by 154
-setup
-
-degraded mount
-
-scan missing dev and write
-
-run balance
-
-mount reconstructed dev only and check md5sum

tests/btrfs/group

@@ -156,7 +156,6 @@
 151 auto quick volume
 152 auto quick metadata qgroup send
 153 auto quick qgroup limit
-154 auto quick volume balance
 155 auto quick send
 156 auto quick trim balance
 157 auto quick raid