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https://github.com/linux-apfs/apfstests.git
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generic: check userspace handling of extreme timestamps
These two tests ensure we can store and retrieve timestamps on the extremes of the date ranges supported by userspace, and the common places where overflows can happen. They differ from generic/402 in that they don't constrain the dates tested to the range that the filesystem claims to support; we attempt various things that /userspace/ can parse, and then check that the vfs clamps and persists the values correctly. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Darrick J. Wong
committed by
Eryu Guan
Eryu Guan
parent
7d20ed3e1f
commit
472f957a8c
Executable
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (c) 2021 Oracle. All Rights Reserved.
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#
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# FS QA Test No. 634
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#
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# Make sure we can store and retrieve timestamps on the extremes of the
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# date ranges supported by userspace, and the common places where overflows
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# can happen.
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#
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# This differs from generic/402 in that we don't constrain ourselves to the
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# range that the filesystem claims to support; we attempt various things that
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# /userspace/ can parse, and then check that the vfs clamps and persists the
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# values correctly.
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#
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# NOTE: Old kernels (pre 5.4) allow filesystems to truncate timestamps silently
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# when writing timestamps to disk! This test detects this silent truncation
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# and fails. If you see a failure on such a kernel, contact your distributor
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# for an update.
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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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}
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# get standard environment, filters and checks
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. ./common/rc
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# real QA test starts here
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_supported_fs generic
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_require_scratch
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rm -f $seqres.full
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_scratch_mkfs > $seqres.full
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_scratch_mount
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# Does our userspace even support large dates?
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test_bigdates=1
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touch -d 'May 30 01:53:03 UTC 2514' $SCRATCH_MNT 2>/dev/null || test_bigdates=0
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# And can we do statx?
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test_statx=1
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($XFS_IO_PROG -c 'help statx' | grep -q 'Print raw statx' && \
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$XFS_IO_PROG -c 'statx -r' $SCRATCH_MNT 2>/dev/null | grep -q 'stat.mtime') || \
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test_statx=0
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echo "Userspace support of large timestamps: $test_bigdates" >> $seqres.full
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echo "xfs_io support of statx: $test_statx" >> $seqres.full
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touchme() {
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local arg="$1"
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local name="$2"
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echo "$arg" > $SCRATCH_MNT/t_$name
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touch -d "$arg" $SCRATCH_MNT/t_$name
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}
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report() {
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local files=($SCRATCH_MNT/t_*)
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for file in "${files[@]}"; do
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echo "${file}: $(cat "${file}")"
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TZ=UTC stat -c '%y %Y %n' "${file}"
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test $test_statx -gt 0 && \
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$XFS_IO_PROG -c 'statx -r' "${file}" | grep 'stat.mtime'
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done
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}
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# -2147483648 (S32_MIN, or classic unix min)
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touchme 'Dec 13 20:45:52 UTC 1901' s32_min
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# 2147483647 (S32_MAX, or classic unix max)
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touchme 'Jan 19 03:14:07 UTC 2038' s32_max
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# 7956915742, all twos
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touchme 'Feb 22 22:22:22 UTC 2222' all_twos
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if [ $test_bigdates -gt 0 ]; then
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# 16299260424 (u64 nsec counter from s32_min, like xfs does)
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touchme 'Tue Jul 2 20:20:24 UTC 2486' u64ns_from_s32_min
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# 15032385535 (u34 time if you start from s32_min, like ext4 does)
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touchme 'May 10 22:38:55 UTC 2446' u34_from_s32_min
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# 17179869183 (u34 time if you start from the unix epoch)
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touchme 'May 30 01:53:03 UTC 2514' u34_max
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# Latest date we can synthesize(?)
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touchme 'Dec 31 23:59:59 UTC 2147483647' abs_max_time
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# Earliest date we can synthesize(?)
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touchme 'Jan 1 00:00:00 UTC 0' abs_min_time
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fi
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# Query timestamps from incore
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echo before >> $seqres.full
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report > $tmp.before_remount
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cat $tmp.before_remount >> $seqres.full
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_scratch_cycle_mount
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# Query timestamps from disk
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echo after >> $seqres.full
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report > $tmp.after_remount
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cat $tmp.after_remount >> $seqres.full
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# Did they match?
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cmp -s $tmp.before_remount $tmp.after_remount
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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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@@ -0,0 +1,2 @@
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QA output created by 634
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Silence is golden.
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Executable
+125
@@ -0,0 +1,125 @@
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (c) 2021 Oracle. All Rights Reserved.
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#
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# FS QA Test No. 635
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#
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# Make sure we can store and retrieve timestamps on the extremes of the
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# date ranges supported by userspace, and the common places where overflows
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# can happen. This test also ensures that the timestamps are persisted
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# correctly after a shutdown.
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#
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# This differs from generic/402 in that we don't constrain ourselves to the
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# range that the filesystem claims to support; we attempt various things that
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# /userspace/ can parse, and then check that the vfs clamps and persists the
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# values correctly.
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#
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# NOTE: Old kernels (pre 5.4) allow filesystems to truncate timestamps silently
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# when writing timestamps to disk! This test detects this silent truncation
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# and fails. If you see a failure on such a kernel, contact your distributor
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# for an update.
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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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}
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# get standard environment, filters and checks
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. ./common/rc
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# real QA test starts here
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_supported_fs generic
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_require_scratch
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_require_scratch_shutdown
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rm -f $seqres.full
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_scratch_mkfs > $seqres.full
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_scratch_mount
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# Does our userspace even support large dates?
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test_bigdates=1
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touch -d 'May 30 01:53:03 UTC 2514' $SCRATCH_MNT 2>/dev/null || test_bigdates=0
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# And can we do statx?
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test_statx=1
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($XFS_IO_PROG -c 'help statx' | grep -q 'Print raw statx' && \
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$XFS_IO_PROG -c 'statx -r' $SCRATCH_MNT 2>/dev/null | grep -q 'stat.mtime') || \
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test_statx=0
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echo "Userspace support of large timestamps: $test_bigdates" >> $seqres.full
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echo "xfs_io support of statx: $test_statx" >> $seqres.full
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touchme() {
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local arg="$1"
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local name="$2"
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echo "$arg" > $SCRATCH_MNT/t_$name
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touch -d "$arg" $SCRATCH_MNT/t_$name
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}
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report() {
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local files=($SCRATCH_MNT/t_*)
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for file in "${files[@]}"; do
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echo "${file}: $(cat "${file}")"
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TZ=UTC stat -c '%y %Y %n' "${file}"
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test $test_statx -gt 0 && \
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$XFS_IO_PROG -c 'statx -r' "${file}" | grep 'stat.mtime'
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done
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}
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# -2147483648 (S32_MIN, or classic unix min)
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touchme 'Dec 13 20:45:52 UTC 1901' s32_min
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# 2147483647 (S32_MAX, or classic unix max)
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touchme 'Jan 19 03:14:07 UTC 2038' s32_max
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# 7956915742, all twos
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touchme 'Feb 22 22:22:22 UTC 2222' all_twos
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if [ $test_bigdates -gt 0 ]; then
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# 16299260424 (u64 nsec counter from s32_min, like xfs does)
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touchme 'Tue Jul 2 20:20:24 UTC 2486' u64ns_from_s32_min
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# 15032385535 (u34 time if you start from s32_min, like ext4 does)
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touchme 'May 10 22:38:55 UTC 2446' u34_from_s32_min
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# 17179869183 (u34 time if you start from the unix epoch)
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touchme 'May 30 01:53:03 UTC 2514' u34_max
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# Latest date we can synthesize(?)
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touchme 'Dec 31 23:59:59 UTC 2147483647' abs_max_time
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# Earliest date we can synthesize(?)
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touchme 'Jan 1 00:00:00 UTC 0' abs_min_time
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fi
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# Query timestamps from incore
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echo before >> $seqres.full
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report > $tmp.before_crash
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cat $tmp.before_crash >> $seqres.full
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_scratch_shutdown -f
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_scratch_cycle_mount
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# Query timestamps from disk
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echo after >> $seqres.full
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report > $tmp.after_crash
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cat $tmp.after_crash >> $seqres.full
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# Did they match?
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cmp -s $tmp.before_crash $tmp.after_crash
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# success, all done
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status=0
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exit
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@@ -0,0 +1 @@
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QA output created by 635
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+4
-2
@@ -260,7 +260,7 @@
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255 auto quick prealloc punch
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256 auto quick punch
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257 dir auto quick
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258 auto quick
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258 auto quick bigtime
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259 auto quick clone zero
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260 auto quick trim
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261 auto quick clone collapse
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@@ -404,7 +404,7 @@
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399 auto encrypt
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400 auto quick quota
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401 auto quick
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402 auto quick rw
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402 auto quick rw bigtime
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403 auto quick attr
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404 auto quick insert
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405 auto mkfs thin
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@@ -636,3 +636,5 @@
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631 auto rw overlay rename
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632 auto quick mount
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633 auto quick atime attr cap idmapped io_uring mount perms rw unlink
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634 auto quick atime bigtime
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635 auto quick atime bigtime shutdown
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