mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Omar Sandoval
0bbd20b104
The behavior of different combinations of space_cache mount options wasn't well defined, which led to a regression between my initial patches adding the free space tree and the 4.5 release. Add a test to exercise all of the meaningful permutations of clear_cache, nospace_cache, and space_cache. This is a regression test for Linux kernel commit "Btrfs: fix mount -o clear_cache,space_cache=v2". Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
154 lines
3.8 KiB
Bash
Executable File
154 lines
3.8 KiB
Bash
Executable File
#! /bin/bash
|
|
# FS QA Test 131
|
|
#
|
|
# Test free space tree mount options.
|
|
#
|
|
#-----------------------------------------------------------------------
|
|
# Copyright (c) 2016 Facebook. All Rights Reserved.
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it would be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write the Free Software Foundation,
|
|
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
#-----------------------------------------------------------------------
|
|
#
|
|
|
|
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 $seqres.full
|
|
|
|
# real QA test starts here
|
|
|
|
_supported_fs btrfs
|
|
_supported_os Linux
|
|
_require_scratch
|
|
_require_btrfs inspect-internal
|
|
|
|
mkfs_v1()
|
|
{
|
|
_scratch_mkfs >/dev/null 2>&1
|
|
# Future proof against btrfs-progs making space_cache=v2 filesystems by
|
|
# default.
|
|
_scratch_mount -o clear_cache,space_cache=v1
|
|
_scratch_unmount
|
|
}
|
|
|
|
mkfs_v2()
|
|
{
|
|
_scratch_mkfs >/dev/null 2>&1
|
|
_scratch_mount -o space_cache=v2
|
|
_scratch_unmount
|
|
}
|
|
|
|
check_fst_compat()
|
|
{
|
|
compat_ro="$($BTRFS_UTIL_PROG inspect-internal dump-super "$SCRATCH_DEV" | \
|
|
sed -rn 's/^compat_ro_flags\s+(.*)$/\1/p')"
|
|
if ((compat_ro & 0x1)); then
|
|
echo "free space tree is enabled"
|
|
else
|
|
echo "free space tree is disabled"
|
|
fi
|
|
}
|
|
|
|
# Mount options might interfere.
|
|
export MOUNT_OPTIONS=""
|
|
|
|
# When the free space tree is not enabled:
|
|
# -o space_cache=v1: keep using the old free space cache
|
|
# -o space_cache=v2: enable the free space tree
|
|
# -o clear_cache,space_cache=v2: clear the free space cache and enable the free space tree
|
|
# We don't check the no options case or plain space_cache as that will change
|
|
# in the future to turn on space_cache=v2.
|
|
|
|
mkfs_v1
|
|
echo "Using free space cache"
|
|
_scratch_mount -o space_cache=v1
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
mkfs_v1
|
|
echo "Enabling free space tree"
|
|
_scratch_mount -o space_cache=v2
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
mkfs_v1
|
|
echo "Disabling free space cache and enabling free space tree"
|
|
_scratch_mount -o clear_cache,space_cache=v2
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
# When the free space tree is enabled:
|
|
# -o nospace_cache, -o space_cache=v1: error
|
|
# no options, -o space_cache=v2: keep using the free space tree
|
|
# -o clear_cache, -o clear_cache,space_cache=v2: clear and recreate the free space tree
|
|
# -o clear_cache,nospace_cache: clear the free space tree
|
|
# -o clear_cache,space_cache=v1: clear the free space tree, enable the free space cache
|
|
|
|
mkfs_v2
|
|
echo "Trying to mount without free space tree"
|
|
_scratch_mount -o nospace_cache >/dev/null 2>&1 || echo "mount failed"
|
|
_scratch_mount -o space_cache=v1 >/dev/null 2>&1 || echo "mount failed"
|
|
|
|
mkfs_v2
|
|
echo "Mounting existing free space tree"
|
|
_scratch_mount
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
_scratch_mount -o space_cache=v2
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
mkfs_v2
|
|
echo "Recreating free space tree"
|
|
_scratch_mount -o clear_cache,space_cache=v2
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
mkfs_v2
|
|
_scratch_mount -o clear_cache
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
mkfs_v2
|
|
echo "Disabling free space tree"
|
|
_scratch_mount -o clear_cache,nospace_cache
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
mkfs_v2
|
|
echo "Reverting to free space cache"
|
|
_scratch_mount -o clear_cache,space_cache=v1
|
|
check_fst_compat
|
|
_scratch_unmount
|
|
|
|
# success, all done
|
|
status=0
|
|
exit
|