The test helps to validate clamping and mount behaviors
according to supported file system timestamp ranges.
Note that the test can fail on 32-bit systems for a
few file systems. This will be corrected when vfs is
transitioned to use 64-bit timestamps.
Signed-off-by: Deepa Dinamani <deepa.kernel(a)gmail.com>
---
The branch of the kernel tree can be located at
https://github.com/deepa-hub/vfs refs/heads/vfs_timestamp_policy
The xfs_io patch to add utimes is at
https://www.spinics.net/lists/linux-xfs/msg02952.html
Changes since v2:
* Refactored notrun handling
* Updated comments
Changes since v1:
* Use xfs_io utimes command
* Updated error handling
* Reorganized code according to review comments
common/rc | 48 +++++++++++++
tests/generic/390 | 192 ++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/390.out | 2 +
tests/generic/group | 1 +
4 files changed, 243 insertions(+)
create mode 100755 tests/generic/390
create mode 100644 tests/generic/390.out
diff --git a/common/rc b/common/rc
index e3b54ec..17f025e 100644
--- a/common/rc
+++ b/common/rc
@@ -1960,6 +1960,51 @@ _run_aiodio()
return $status
}
+# this test requires y2038 sysfs switch and filesystem
+# timestamp ranges support.
+_require_y2038()
+{
+ local device=${1:-$TEST_DEV}
+ local sysfsdir=/proc/sys/fs/fs-timestamp-check-on
+
+ if [ ! -e $sysfsdir ]; then
+ _notrun "no kernel support for y2038 sysfs switch"
+ fi
+
+ local tsmin tsmax
+ read tsmin tsmax <<<$(_filesystem_timestamp_range $device)
+ if [ $tsmin -eq -1 -a $tsmax -eq -1 ]; then
+ _notrun "filesystem $FSTYP timestamp bounds are unknown"
+ fi
+}
+
+_filesystem_timestamp_range()
+{
+ device=${1:-$TEST_DEV}
+ case $FSTYP in
+ ext4)
+ if [ $(dumpe2fs -h $device 2>/dev/null | grep "Inode size:" | cut -d: -f2) -gt 128 ]; then
+ echo "-2147483648 15032385535"
+ else
+ echo "-2147483648 2147483647"
+ fi
+ ;;
+
+ xfs)
+ echo "-2147483648 2147483647"
+ ;;
+ jfs)
+ echo "0 4294967295"
+ ;;
+ f2fs)
+ echo "-2147483648 2147483647"
+ ;;
+ *)
+ echo "-1 -1"
+ ;;
+ esac
+}
+
# indicate whether YP/NIS is active or not
#
_yp_active()
@@ -2070,6 +2115,9 @@ _require_xfs_io_command()
echo $testio | egrep -q "Inappropriate ioctl" && \
_notrun "xfs_io $command support is missing"
;;
+ "utimes" )
+ testio=`$XFS_IO_PROG -f -c "utimes" 0 0 0 0 $testfile 2>&1`
+ ;;
*)
testio=`$XFS_IO_PROG -c "$command help" 2>&1`
esac
diff --git a/tests/generic/390 b/tests/generic/390
new file mode 100755
index 0000000..f68b931
--- /dev/null
+++ b/tests/generic/390
@@ -0,0 +1,192 @@
+#! /bin/bash
+# FS QA Test 390
+#
+# Tests to verify policy for filesystem timestamps for
+# supported ranges:
+# 1. Verify filesystem rw mount according to sysctl
+# timestamp_supported.
+# 2. Verify timestamp clamping for timestamps beyond max
+# timestamp supported.
+#
+# Exit status 1: either or both tests above fail.
+# Exit status 0: both the above tests pass.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Deepa Dinamani. 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 "exit \$status" 0 1 2 3 15
+
+# Get standard environment, filters and checks.
+. ./common/rc
+. ./common/filter
+. ./common/attr
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# Prerequisites for the test run.
+_supported_fs generic
+_supported_os Linux
+_require_scratch
+_require_xfs_io_command utimes
+
+# Compare file timestamps obtained from stat
+# with a given timestamp.
+check_stat()
+{
+ file=$1
+ timestamp=$2
+
+ stat_timestamp=`stat -c"%X;%Y" $file`
+
+ prev_timestamp="$timestamp;$timestamp"
+ if [ $prev_timestamp != $stat_timestamp ]; then
+ echo "$prev_timestamp != $stat_timestamp" | tee -a $seqres.full
+ fi
+}
+
+run_test_individual()
+{
+ file=$1
+ timestamp=$2
+ update_time=$3
+
+ #check if the time needs update
+ if [ $update_time -eq 1 ]; then
+ echo "Updating file: $file to timestamp `date -d @$timestamp`" >> $seqres.full
+ $XFS_IO_PROG -f -c "utimes $timestamp 0 $timestamp 0" $file
+ if [ $? -ne 0 ]; then
+ echo "Failed to update times on $file" | tee -a $seqres.full
+ fi
+ fi
+
+ tsclamp=$(($timestamp>$tsmax?$tsmax:$timestamp))
+ echo "Checking file: $file Updated timestamp is `date -d @$tsclamp`" >> $seqres.full
+ check_stat $file $tsclamp
+}
+
+run_test()
+{
+ update_time=$1
+
+ n=1
+
+ for TIME in "${TIMESTAMPS[@]}"
+ do
+ #Run the test
+ run_test_individual ${SCRATCH_MNT}/test_$n $TIME $update_time
+
+ #update iterator
+ ((n++))
+ done
+}
+
+_scratch_mkfs &>> $seqres.full 2>&1 || _fail "mkfs failed"
+_require_y2038 $SCRATCH_DEV
+
+read tsmin tsmax <<<$(_filesystem_timestamp_range $SCRATCH_DEV)
+echo min supported timestamp $tsmin $(date --date=@$tsmin) >> $seqres.full
+echo max supported timestamp $tsmax $(date --date=@$tsmax) >> $seqres.full
+
+# Test timestamps array
+
+declare -a TIMESTAMPS=(
+ $tsmin
+ 0
+ $tsmax
+ $((tsmax+1))
+ 4294967295
+ 8589934591
+ 34359738367
+)
+
+# Max timestamp is hardcoded to Mon Jan 18 19:14:07 PST 2038
+sys_tsmax=2147483647
+echo "max timestamp that needs to be supported by fs for rw mount is" \
+ "$((sys_tsmax+1)) $(date --date=@$((sys_tsmax+1)))" >> $seqres.full
+
+read ts_check <<<$(cat /proc/sys/fs/fs-timestamp-check-on)
+
+_scratch_mount
+result=$?
+
+if [ $ts_check -ne 0 ]; then
+ echo "sysctl filesystem timestamp check is on" >> $seqres.full
+ # check for mount failure if the minimum requirement for max timestamp
+ # supported is not met.
+ if [ $sys_tsmax -ge $tsmax ]; then
+ if [ $result -eq 0 ]; then
+ echo "mount test failed" | tee -a $seqres.full
+ exit
+ fi
+ else
+ if [ $result -ne 0 ]; then
+ echo "failed to mount $SCRATCH_DEV" | tee -a $seqres.full
+ exit
+ fi
+ fi
+else
+ # if sysctl switch is off then mount should succeed always.
+ echo "sysctl filesystem timestamp check is off" >> $seqres.full
+ if [ $result -ne 0 ]; then
+ echo "failed to mount $SCRATCH_DEV and timestamp check is off" >> $seqres.full
+ exit
+ fi
+fi
+
+# Begin test case 1
+echo "In memory timestamps update test start" >> $seqres.full
+
+# update time on the file
+update_time=1
+
+run_test $update_time
+
+echo "In memory timestamps update complete" >> $seqres.full
+
+echo "Unmounting and mounting scratch $SCRATCH_MNT" >> $seqres.full
+
+# unmount and remount $SCRATCH_DEV
+_scratch_cycle_mount
+
+# Begin test case 2
+
+n=1
+
+# Do not update time on the file this time, just read from disk
+update_time=0
+
+echo "On disk timestamps update test start" >> $seqres.full
+
+# Re-run test
+run_test $update_time
+
+echo "On disk timestamps update test complete" >> $seqres.full
+
+echo "y2038 inode timestamp tests completed successfully"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/390.out b/tests/generic/390.out
new file mode 100644
index 0000000..82bd4eb
--- /dev/null
+++ b/tests/generic/390.out
@@ -0,0 +1,2 @@
+QA output created by 390
+y2038 inode timestamp tests completed successfully
diff --git a/tests/generic/group b/tests/generic/group
index 08007d7..d137d01 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -392,3 +392,4 @@
387 auto clone
388 auto log metadata
389 auto quick acl
+390 auto quick rw
--
2.7.4
Hi everyone,
This is a conversion of all subsystem-wide v4l2 code to avoid the
use of types based on time_t. The first five patches should all
be harmless and obvious, so they can get applied for 4.3 after
normal review.
The last two patches are marked RFC for now because their possible
impact on the user space ABI and to decide if this is the best
approach or whether we should instead introduce extra code in
the kernel to handle modified user space.
There are a few device drivers beyond this series that rely on
time_t/timeval/timespec internally, but they are all easy to fix
and can be taken care of later.
Arnd
Arnd Bergmann (7):
[media] dvb: use ktime_t for internal timeout
[media] dvb: remove unused systime() function
[media] dvb: don't use 'time_t' in event ioctl
[media] exynos4-is: use monotonic timestamps as advertized
[media] use v4l2_get_timestamp where possible
[RFC] [media]: v4l2: introduce v4l2_timeval
[RFC] [media] introduce v4l2_timespec type for timestamps
drivers/media/dvb-core/demux.h | 2 +-
drivers/media/dvb-core/dmxdev.c | 2 +-
drivers/media/dvb-core/dvb_demux.c | 17 ++++++-----------
drivers/media/dvb-core/dvb_demux.h | 4 ++--
drivers/media/dvb-core/dvb_net.c | 2 +-
drivers/media/dvb-frontends/dibx000_common.c | 10 ----------
drivers/media/dvb-frontends/dibx000_common.h | 2 --
drivers/media/pci/bt8xx/bttv-driver.c | 7 ++-----
drivers/media/pci/cx18/cx18-mailbox.c | 2 +-
drivers/media/pci/meye/meye.h | 2 +-
drivers/media/pci/zoran/zoran.h | 2 +-
drivers/media/platform/coda/coda.h | 2 +-
drivers/media/platform/exynos4-is/fimc-capture.c | 8 +-------
drivers/media/platform/exynos4-is/fimc-lite.c | 7 +------
drivers/media/platform/omap/omap_vout.c | 4 ++--
drivers/media/platform/omap3isp/ispstat.c | 5 ++---
drivers/media/platform/omap3isp/ispstat.h | 2 +-
drivers/media/platform/s3c-camif/camif-capture.c | 8 +-------
drivers/media/platform/vim2m.c | 2 +-
drivers/media/platform/vivid/vivid-ctrls.c | 2 +-
drivers/media/usb/cpia2/cpia2.h | 2 +-
drivers/media/usb/cpia2/cpia2_v4l.c | 2 +-
drivers/media/usb/gspca/gspca.c | 6 +++---
drivers/media/usb/usbvision/usbvision.h | 2 +-
drivers/media/v4l2-core/v4l2-common.c | 6 +++---
drivers/media/v4l2-core/v4l2-event.c | 20 +++++++++++++-------
drivers/staging/media/omap4iss/iss_video.c | 5 +----
include/media/v4l2-common.h | 2 +-
include/media/videobuf-core.h | 2 +-
include/trace/events/v4l2.h | 12 ++++++++++--
include/uapi/linux/dvb/video.h | 3 ++-
include/uapi/linux/omap3isp.h | 2 +-
include/uapi/linux/videodev2.h | 16 ++++++++++++++--
33 files changed, 79 insertions(+), 93 deletions(-)
--
2.1.0.rc2
The series contains the last unmerged uses of CURRENT_TIME,
CURRENT_TIME_SEC, and current_fs_time().
The series also deletes these apis.
All the patches except [PATCH 9/12] and [PATCH 10/12] are resend patches.
These patches fix new instances of CURRENT_TIME.
cifs and ceph patches have been squashed so that we have one patch per
filesystem.
We want to get these merged onto 4.12 release so that I can post the series
that changes vfs timestamps to use 64 bits for 4.13 release.
I'm proposing these to be merged through Andrew's tree.
Filesystem maintainers, please let Andrew know if you will be picking up
the patch in your trees.
Let me know if anybody has other preferences for merging.
Deepa Dinamani (12):
fs: f2fs: Use ktime_get_real_seconds for sit_info times
trace: Make trace_hwlat timestamp y2038 safe
fs: cifs: Replace CURRENT_TIME by other appropriate apis
fs: ceph: CURRENT_TIME with ktime_get_real_ts()
fs: ufs: Use ktime_get_real_ts64() for birthtime
audit: Use timespec64 to represent audit timestamps
fs: btrfs: Use ktime_get_real_ts for root ctime
fs: ubifs: Replace CURRENT_TIME_SEC with current_time
lustre: Replace CURRENT_TIME macro
apparmorfs: Replace CURRENT_TIME with current_time()
time: Delete CURRENT_TIME_SEC and CURRENT_TIME
time: Delete current_fs_time() function
drivers/block/rbd.c | 2 +-
drivers/staging/lustre/lustre/llite/llite_lib.c | 6 +++---
drivers/staging/lustre/lustre/osc/osc_io.c | 4 ++--
fs/btrfs/root-tree.c | 3 ++-
fs/ceph/mds_client.c | 4 +++-
fs/cifs/cifsencrypt.c | 4 +++-
fs/cifs/cifssmb.c | 10 ++++-----
fs/cifs/inode.c | 28 +++++++++++++------------
fs/f2fs/segment.c | 2 +-
fs/f2fs/segment.h | 5 +++--
fs/ubifs/dir.c | 12 +++++------
fs/ubifs/file.c | 12 +++++------
fs/ubifs/ioctl.c | 2 +-
fs/ubifs/misc.h | 10 ---------
fs/ubifs/sb.c | 14 +++++++++----
fs/ubifs/xattr.c | 6 +++---
fs/ufs/ialloc.c | 6 ++++--
include/linux/audit.h | 4 ++--
include/linux/fs.h | 1 -
include/linux/time.h | 3 ---
kernel/audit.c | 10 ++++-----
kernel/audit.h | 2 +-
kernel/auditsc.c | 6 +++---
kernel/time/time.c | 14 -------------
kernel/trace/trace_entries.h | 6 +++---
kernel/trace/trace_hwlat.c | 14 ++++++-------
kernel/trace/trace_output.c | 9 ++++----
net/ceph/messenger.c | 6 ++++--
net/ceph/osd_client.c | 4 ++--
security/apparmor/apparmorfs.c | 2 +-
30 files changed, 100 insertions(+), 111 deletions(-)
--
2.7.4
Hello there,
Might want to know whether you are keen on obtaining AWS and other cloud
Leads for your Marketing Efforts.
We provide data across the globe - North America, EMEA, Asia Pacific and
LATAM.
We provide all type of job titles: C-Level, VP-Level, directors, Managers
and IT decision makers.
Please review and let me know your thoughts and I will get back to you with
more information.
Best Regards
Amelie Bates
Amelie.Bates(a)salientec.com
# 501, Silverside Road Suite 105, Wilmington DE-19809
Database Consultant- Technology Database
The series is aimed at adding timestamp checking and policy
related to it to vfs.
The series was developed with discussions and guidance from
Arnd Bergmann.
The original thread is at https://lkml.org/lkml/2016/11/2/294
Associated test: xfstests generic/402
Note that the above test will be run and will fail all filesystems that
do not have correct limits specified in the xfstests or the kernel or
that don't support times beyond the test dates. I will be submitting a
follow up xfstest and kernel patches to update all filesystems.
Currently ext4 is the only filesystem that reflects correct limits.
The branch is available at
https://github.com/deepa-hub/vfs.git refs/heads/vfs_timestamp_policy
Changes since v4:
* Added documentation for boot param
Changes since v3:
* Remove redundant initializations in libfs.c
* Change early_param to __setup similar to other root mount options.
* Fix documentation warning
Changes since v2:
* Introduce early boot param override for checks.
* Drop afs patch for timestamp limits.
Changes since v1:
* return EROFS on mount errors
* fix mtime copy/paste error in utimes
Deepa Dinamani (5):
vfs: Add file timestamp range support
vfs: Add checks for filesystem timestamp limits
ext4: Initialize timestamps limits
vfs: Add timestamp_truncate() api
utimes: Clamp the timestamps before update
Documentation/admin-guide/kernel-parameters.txt | 8 +++++
fs/ext4/ext4.h | 4 +++
fs/ext4/super.c | 7 +++-
fs/inode.c | 47 ++++++++++++++++++++++++-
fs/internal.h | 2 ++
fs/namespace.c | 12 +++++++
fs/super.c | 9 +++++
fs/utimes.c | 17 ++++++---
include/linux/fs.h | 4 +++
include/linux/time64.h | 6 ++++
include/uapi/linux/fs.h | 6 +++-
kernel/sysctl.c | 7 ++++
12 files changed, 122 insertions(+), 7 deletions(-)
--
2.7.4
Dear Customer,
This is to confirm that your item has been shipped at April 20.
Please check delivery label attached!
Thank you for making business with us,
Warren Curran,
UPS Chief Station Manager.