[PATCH v3] btrfs: add fstrim test case on the sprout device
From: Anand Jain <hidden>
Date: 2021-05-03 11:08:19
Also in:
linux-btrfs
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add fstrim test case on the sprout device, verify seed device
integrity.
btrfs: fix unmountable seed device after fstrim
Signed-off-by: Anand Jain <redacted>
---
v3:
Drop useless write into the sprout device as we are testing the effect of
fstrim run in the sprout on the seed device.
v2:
Add _require_fstrim and _require_batched_discard.
Use FSTRIM_PROG.
Use _filter_ro_mount to handle the difference in output in different
mount(8) version.
Call _scratch_dev_pool_put.
Add _check_btrfs_filesystem $seed to check the whole seed fs.
Update in-code comments.
tests/btrfs/236 | 79 +++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/236.out | 5 +++
tests/btrfs/group | 1 +
3 files changed, 85 insertions(+)
create mode 100755 tests/btrfs/236
create mode 100644 tests/btrfs/236.out
diff --git a/tests/btrfs/236 b/tests/btrfs/236
new file mode 100755
index 000000000000..1fcb3aab8c0c
--- /dev/null
+++ b/tests/btrfs/236@@ -0,0 +1,79 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2021 Oracle. All Rights Reserved. +# +# FS QA Test 236 +# +# Check seed device integrity after fstrim on the sprout device. +# +# Kernel bug is fixed by the commit: +# btrfs: fix unmountable seed device after fstrim + +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 + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs btrfs +_require_command "$BTRFS_TUNE_PROG" btrfstune +_require_fstrim +_require_scratch_dev_pool 2 +_scratch_dev_pool_get 2 + +seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}') +sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}') + +_mkfs_dev $seed +_mount $seed $SCRATCH_MNT + +$XFS_IO_PROG -f -c "pwrite -S 0xab 0 1M" $SCRATCH_MNT/foo > /dev/null +_scratch_unmount +$BTRFS_TUNE_PROG -S 1 $seed + +# Mount the seed device and add the rw device +_mount $seed $SCRATCH_MNT 2>&1 | _filter_ro_mount | _filter_scratch +md5sum $SCRATCH_MNT/foo | _filter_scratch + +$BTRFS_UTIL_PROG device add -f $sprout $SCRATCH_MNT +_scratch_unmount + +# Now remount writeable sprout device, create some data and run fstrim +_mount $sprout $SCRATCH_MNT +_require_batched_discard $SCRATCH_MNT + +$FSTRIM_PROG $SCRATCH_MNT + +_scratch_unmount + +# Verify seed device is all ok +_mount $seed $SCRATCH_MNT 2>&1 | _filter_ro_mount | _filter_scratch +md5sum $SCRATCH_MNT/foo | _filter_scratch +_scratch_unmount + +_check_btrfs_filesystem $seed + +_scratch_dev_pool_put + +# success, all done +status=0 +exit
diff --git a/tests/btrfs/236.out b/tests/btrfs/236.out
new file mode 100644
index 000000000000..01699b8fc291
--- /dev/null
+++ b/tests/btrfs/236.out@@ -0,0 +1,5 @@ +QA output created by 236 +mount: device write-protected, mounting read-only +096003817ad2638000a6836e55866697 SCRATCH_MNT/foo +mount: device write-protected, mounting read-only +096003817ad2638000a6836e55866697 SCRATCH_MNT/foo
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 331dd432fac3..5032259244e0 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group@@ -238,3 +238,4 @@ 233 auto quick subvolume 234 auto quick compress rw 235 auto quick send +236 auto quick seed trim
--
2.27.0