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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
zhangyi (F)
697e465ca3
Tests that use _overlay_scratch_mount_dirs instead of _scratch_mount should use _require_scratch_nocheck instead of _require_scratch because these tests are either mounting with multiple lower dirs or mounting with non-default lower/upper/work dir, so _check_overlay_scratch_fs won't handle these cases correctly. So we introduce _overlay_check_scratch_dirs helper and should call this helper with the correct dir arguments for these non-default cases. This patch modify these tests to optionally call _overlay_check_scratch_dirs at the end of the test or after _scratch_umount to mount base filesystem only and run the checker. Signed-off-by: zhangyi (F) <yi.zhang@huawei.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
118 lines
3.4 KiB
Bash
Executable File
118 lines
3.4 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 005
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#
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# Memleak in overlayfs copy-up error handling path leads to panic
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# when unmount the underlying fs.
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# Kernel commit ab79efab0 fixed this issue.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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_destroy_loop_device $fs_loop_dev
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_destroy_loop_device $upper_loop_dev
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rm -f $lower_img
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rm -f $upper_img
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs overlay
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_supported_os Linux
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# Use non-default scratch underlying overlay dirs, we need to check
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# them explicity after test.
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_require_scratch_nocheck
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_require_loop
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# Remove all files from previous tests
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_scratch_mkfs
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# setup loop images fs for overlayfs
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lower_img=${OVL_BASE_SCRATCH_MNT}/${seq}.$$.img
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$XFS_IO_PROG -f -c "truncate 120m" $lower_img >>$seqres.full 2>&1
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fs_loop_dev=`_create_loop_device $lower_img`
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$MKFS_XFS_PROG -f -n ftype=1 $fs_loop_dev >>$seqres.full 2>&1
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# only 20m for upper dir
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upper_img=${OVL_BASE_SCRATCH_MNT}/$$.${seq}.img
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$XFS_IO_PROG -f -c "truncate 20m" $upper_img >>$seqres.full 2>&1
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upper_loop_dev=`_create_loop_device $upper_img`
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$MKFS_XFS_PROG -f -n ftype=1 $upper_loop_dev >>$seqres.full 2>&1
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# mount underlying xfs
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mkdir -p ${OVL_BASE_SCRATCH_MNT}/lowermnt
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mkdir -p ${OVL_BASE_SCRATCH_MNT}/uppermnt
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$MOUNT_PROG $fs_loop_dev ${OVL_BASE_SCRATCH_MNT}/lowermnt
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$MOUNT_PROG $upper_loop_dev ${OVL_BASE_SCRATCH_MNT}/uppermnt
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# prepare dirs
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mkdir -p ${OVL_BASE_SCRATCH_MNT}/lowermnt/lower
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mkdir -p ${OVL_BASE_SCRATCH_MNT}/uppermnt/upper
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mkdir -p ${OVL_BASE_SCRATCH_MNT}/uppermnt/work
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lowerd=${OVL_BASE_SCRATCH_MNT}/lowermnt/lower
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upperd=${OVL_BASE_SCRATCH_MNT}/uppermnt/upper
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workd=${OVL_BASE_SCRATCH_MNT}/uppermnt/work
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# Create test file in lower dir, with too big a size for
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# upper dir to copy up.
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$XFS_IO_PROG -f -c "truncate 48m" ${lowerd}/test_file \
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>>$seqres.full 2>&1
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# mount new overlayfs
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_overlay_scratch_mount_dirs $lowerd $upperd $workd
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# the open call triggers copy-up and it will fail ENOSPC
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$XFS_IO_PROG -f -c "o" ${SCRATCH_MNT}/test_file \
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>>$seqres.full 2>&1
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# unmount overlayfs
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$UMOUNT_PROG $SCRATCH_MNT
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# check overlayfs
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_overlay_check_scratch_dirs $lowerd $upperd $workd
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# unmount undelying xfs, this tiggers panic if memleak happens
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$UMOUNT_PROG ${OVL_BASE_SCRATCH_MNT}/uppermnt
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$UMOUNT_PROG ${OVL_BASE_SCRATCH_MNT}/lowermnt
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# success, all done
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echo "Silence is golden"
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status=0
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exit
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