mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Dave Chinner
cf89aed924
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
134 lines
4.3 KiB
Bash
Executable File
134 lines
4.3 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved.
|
|
#
|
|
# FS QA Test No. generic/030
|
|
#
|
|
# Test mapped writes against remap+truncate down/up to ensure we get the data
|
|
# correctly written. This can expose data corruption bugs on filesystems where
|
|
# the block size is smaller than the page size.
|
|
#
|
|
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 $tmp.*
|
|
}
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common/rc
|
|
. ./common/filter
|
|
|
|
# real QA test starts here
|
|
|
|
# Modify as appropriate.
|
|
_supported_fs generic
|
|
_supported_os Linux
|
|
_require_scratch
|
|
_require_xfs_io_command "mremap"
|
|
|
|
testfile=$SCRATCH_MNT/testfile
|
|
|
|
_scratch_mkfs > /dev/null 2>&1
|
|
_scratch_mount
|
|
|
|
# first case is just truncate down/truncate up to check that the mapped
|
|
# write after the truncate up is correctly handled.
|
|
$XFS_IO_PROG -t -f \
|
|
-c "truncate 5017k" `# truncate | |` \
|
|
-c "pwrite -S 0x58 0 5017k" `# write |X...XXX|` \
|
|
-c "mmap -rw 0 5017k" `# mmap | |` \
|
|
-c "truncate 5020k" `# truncate up | |` \
|
|
-c "mremap -m 5020k" `# mremap up | |` \
|
|
-c "mwrite -S 0x57 5017k 3k" `# mwrite | WWWWWWWWWWWWWWWW|` \
|
|
-c "mremap 5017k " `# mremap dn | |` \
|
|
-c "truncate 5017k" `# mremap dn | |` \
|
|
-c "truncate 5020k" `# truncate up | |` \
|
|
-c "mremap -m 5020k" `# mremap up | |` \
|
|
-c "mwrite -S 0x59 5017k 3k" `# mwrite | YYYYYYYYYYYYYYYY|` \
|
|
-c "close" \
|
|
$testfile | _filter_xfs_io
|
|
|
|
echo "==== Pre-Remount ==="
|
|
hexdump -C $testfile
|
|
_scratch_cycle_mount
|
|
echo "==== Post-Remount =="
|
|
hexdump -C $testfile
|
|
|
|
rm -f $testfile
|
|
sync
|
|
|
|
# second case is to do a mwrite between the truncate to a block on the
|
|
# same page we are truncating within the EOF. This checks that a mapped
|
|
# write between truncate down and truncate up a further mapped
|
|
# write to the same page into the new space doesn't result in data being lost.
|
|
$XFS_IO_PROG -t -f \
|
|
-c "truncate 5017k" `# truncate | |` \
|
|
-c "pwrite -S 0x58 0 5017k" `# write |X...XXX|` \
|
|
-c "mmap -rw 0 5017k" `# mmap | |` \
|
|
-c "truncate 5020k" `# truncate up | |` \
|
|
-c "mremap -m 5020k" `# mremap up | |` \
|
|
-c "mwrite -S 0x57 5017k 3k" `# mwrite | WWWWWWWWWWWWWWWW|` \
|
|
-c "mremap 5017k " `# mremap dn | |` \
|
|
-c "truncate 5017k" `# mremap dn | |` \
|
|
-c "mwrite -S 0x5a 5016k 1k" `# mwrite | ZZZ |` \
|
|
-c "truncate 5020k" `# truncate up | |` \
|
|
-c "mremap -m 5020k" `# mremap up | |` \
|
|
-c "mwrite -S 0x59 5017k 3k" `# mwrite | YYYYYYYYYYYYYYYY|` \
|
|
-c "close" \
|
|
$testfile | _filter_xfs_io
|
|
|
|
echo "==== Pre-Remount ==="
|
|
hexdump -C $testfile
|
|
_scratch_cycle_mount
|
|
echo "==== Post-Remount =="
|
|
hexdump -C $testfile
|
|
|
|
# third case is the same as the first, but this time on unaligned byte
|
|
# boundaries rather than block boundaries. This mimics the exact mmap write
|
|
# patterns of the application that exposed the bug in the first place, and
|
|
# so is somewhat more complex and has repeated operations in it.
|
|
$XFS_IO_PROG -t -f \
|
|
-c "truncate 5136912" \
|
|
-c "pwrite -S 0x58 0 5136912" \
|
|
-c "mmap -rw 0 5136912" \
|
|
-c "mremap 5136912" \
|
|
-c "truncate 5136912" \
|
|
-c "truncate 5139720" \
|
|
-c "mremap -m 5139720" \
|
|
-c "mwrite -S 0 5136912 2808" \
|
|
-c "mwrite -S 0 5136912 2808" \
|
|
-c "mwrite -S 0 5136912 2808" \
|
|
-c "mremap 5136912 " \
|
|
-c "truncate 5136912" \
|
|
-c "truncate 5139720" \
|
|
-c "mremap -m 5139720" \
|
|
-c "mwrite -S 0 5136912 2808" \
|
|
-c "mwrite -S 0 5136912 2808" \
|
|
-c "mwrite -S 0x59 5136912 2808" \
|
|
-c "truncate 5140480" \
|
|
-c "mremap 5140480" \
|
|
-c "msync -s 0 5140480" \
|
|
-c "mremap 5139720" \
|
|
-c "munmap" \
|
|
-c "close" \
|
|
$testfile | _filter_xfs_io
|
|
|
|
echo "==== Pre-Remount ==="
|
|
hexdump -C $testfile
|
|
_scratch_cycle_mount
|
|
echo "==== Post-Remount =="
|
|
hexdump -C $testfile
|
|
|
|
status=0
|
|
exit
|
|
|