Y2038 July 2019

y2038@lists.linaro.org

10 participants
4 discussions

[PATCH] generic/402: fix for updated behavior of timestamp limits

by Deepa Dinamani

The mount behavior will not be altered because of the unsupported timestamps on the filesystems. Adjust the test accordingly. An updated series to be posted after the merge window is hosted at <https://github.com/deepa-hub/vfs/tree/limits> Signed-off-by: Deepa Dinamani <deepa.kernel(a)gmail.com> --- common/rc | 36 +++++++++--------- tests/generic/402 | 87 ++++++++++++++++--------------------------- tests/generic/402.out | 2 +- 3 files changed, 53 insertions(+), 72 deletions(-) diff --git a/common/rc b/common/rc index 25203bb4..39a2deb0 100644 --- a/common/rc +++ b/common/rc @@ -1959,16 +1959,9 @@ _run_aiodio() return $status } -# this test requires y2038 sysfs switch and filesystem -# timestamp ranges support. -_require_y2038() +_require_timestamp_range() { local device=${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 $device) @@ -1980,23 +1973,32 @@ _require_y2038() _filesystem_timestamp_range() { local device=${1:-$TEST_DEV} + u32max=$(((1<<32)-1)) + s32min=-$((1<<31)) + s32max=$(((1<<31)-1)) + s64max=$(((1<<63)-1)) + s64min=$((1<<63)) + case $FSTYP in - ext4) + ext2) + echo "$s32min $s32max" + ;; + ext3|ext4) if [ $(dumpe2fs -h $device 2>/dev/null | grep "Inode size:" | cut -d: -f2) -gt 128 ]; then - echo "-2147483648 15032385535" + printf "%d %d\n" $s32min 0x37fffffff else - echo "-2147483648 2147483647" + echo "$s32min $s32max" fi ;; - xfs) - echo "-2147483648 2147483647" - ;; jfs) - echo "0 4294967295" + echo "0 $u32max" ;; - f2fs) - echo "-2147483648 2147483647" + xfs) + echo "$s32min $s32max" + ;; + btrfs) + echo "$s64min $s64max" ;; *) echo "-1 -1" diff --git a/tests/generic/402 b/tests/generic/402 index f742fedd..dd136ec2 100755 --- a/tests/generic/402 +++ b/tests/generic/402 @@ -4,15 +4,10 @@ # # FS QA Test 402 # -# 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. +# Test to verify filesystem timestamps for supported ranges. # -# Exit status 1: either or both tests above fail. -# Exit status 0: both the above tests pass. +# Exit status 1: test failed. +# Exit status 0: test passed. # seq=`basename $0` seqres=$RESULT_DIR/$seq @@ -49,47 +44,59 @@ check_stat() prev_timestamp="$timestamp;$timestamp" if [ $prev_timestamp != $stat_timestamp ]; then echo "$prev_timestamp != $stat_timestamp" | tee -a $seqres.full + return 1 fi + return 0 } run_test_individual() { + fail=0 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 + echo "Updating file: $file to timestamp $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 $seqres.full + fail=1 fi fi - tsclamp=$(($timestamp>$tsmax?$tsmax:$timestamp)) - echo "Checking file: $file Updated timestamp is `date -d @$tsclamp`" >> $seqres.full - check_stat $file $tsclamp + tsclamp=$((timestamp<tsmin?tsmin:timestamp>tsmax?tsmax:timestamp)) + echo "Checking file: $file Updated timestamp is $tsclamp" >> $seqres.full + if ! check_stat $file $tsclamp; then + fail=1 + fi + return $fail } run_test() { + fail=0 update_time=$1 n=1 for TIME in "${TIMESTAMPS[@]}"; do - run_test_individual ${SCRATCH_MNT}/test_$n $TIME $update_time + if ! run_test_individual ${SCRATCH_MNT}/test_$n $TIME $update_time; then + fail=1 + fi ((n++)) done + + return $fail } _scratch_mkfs &>> $seqres.full 2>&1 || _fail "mkfs failed" -_require_y2038 $SCRATCH_DEV +_require_timestamp_range $SCRATCH_DEV read tsmin tsmax <<<$(_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 +echo min supported timestamp $tsmin >> $seqres.full +echo max supported timestamp $tsmax >> $seqres.full # Test timestamps array @@ -97,45 +104,14 @@ declare -a TIMESTAMPS=( $tsmin 0 $tsmax + $((tsmax/2)) $((tsmax+1)) - 4294967295 - 8589934591 - 34359738367 ) -# Max timestamp is hardcoded to Mon Jan 18 19:14:07 PST 2038 -sys_tsmax=2147483647 -echo "max timestamp that needs to be supported by fs for rw mount is" \ - "$((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 +status=0 # Begin test case 1 echo "In memory timestamps update test start" >> $seqres.full @@ -143,7 +119,9 @@ echo "In memory timestamps update test start" >> $seqres.full # update time on the file update_time=1 -run_test $update_time +if ! run_test $update_time; then + status=1 +fi echo "In memory timestamps update complete" >> $seqres.full @@ -162,12 +140,13 @@ update_time=0 echo "On disk timestamps update test start" >> $seqres.full # Re-run test -run_test $update_time +if ! run_test $update_time; then + status=1 +fi echo "On disk timestamps update test complete" >> $seqres.full -echo "y2038 inode timestamp tests completed successfully" +echo "inode timestamp tests completed status $status" # success, all done -status=0 -exit +exit $status diff --git a/tests/generic/402.out b/tests/generic/402.out index 6c5b9308..4500e6c7 100644 --- a/tests/generic/402.out +++ b/tests/generic/402.out @@ -1,2 +1,2 @@ QA output created by 402 -y2038 inode timestamp tests completed successfully +inode timestamp tests completed status 0 -- 2.17.1

4 years, 9 months

[PATCH 00/20] vfs: Add support for timestamp limits

by Deepa Dinamani

The series is an update and a more complete version of the previously posted series at https://lore.kernel.org/linux-fsdevel/20180122020426.2988-1-deepa.kernel@gm… Thanks to Arnd Bergmann for doing a few preliminary reviews. They helped me fix a few issues I had overlooked. The limits (sometimes granularity also) for the filesystems updated here are according to the following table: File system Time type Start year Expiration year Granularity cramfs fixed 0 0 romfs fixed 0 0 pstore ascii seconds (27 digit ascii) S64_MIN S64_MAX NSEC_PER_USEC coda INT64 S64_MIN S64_MAX 1 omfs 64-bit milliseconds 0 U64_MAX/ 1000 NSEC_PER_MSEC befs unsigned 48-bit seconds 0 0xffffffffffff alloc_super bfs unsigned 32-bit seconds 0 U32_MAX alloc_super efs unsigned 32-bit seconds 0 U32_MAX alloc_super ext2 signed 32-bit seconds S32_MIN S32_MAX alloc_super ext3 signed 32-bit seconds S32_MIN S32_MAX alloc_super ext4 (old) signed 32-bit seconds S32_MIN S32_MAX alloc_super ext4 (extra) 34-bit seconds, 30-bit ns S32_MIN 0x37fffffff 1 freevxfs u32 secs/usecs 0 U32_MAX alloc_super jffs2 unsigned 32-bit seconds 0 U32_MAX alloc_super jfs unsigned 32-bit seconds/ns 0 U32_MAX 1 minix unsigned 32-bit seconds 0 U32_MAX alloc_super orangefs u64 seconds 0 U64_MAX alloc_super qnx4 unsigned 32-bit seconds 0 U32_MAX alloc_super qnx6 unsigned 32-bit seconds 0 U32_MAX alloc_super reiserfs unsigned 32-bit seconds 0 U32_MAX alloc_super squashfs unsigned 32-bit seconds 0 U32_MAX alloc_super ufs1 signed 32-bit seconds S32_MIN S32_MAX NSEC_PER_SEC ufs2 signed 64-bit seconds/u32 ns S64_MIN S64_MAX 1 xfs signed 32-bit seconds/ns S32_MIN S32_MAX 1 ceph unsigned 32-bit second/ns 0 U32_MAX 1000 sysv unsigned 32-bit seconds 0 U32_MAX alloc_super affs u32 day, min, ticks 1978 u32_max days NSEC_PER_SEC nfsv2 unsigned 32-bit seconds/ns 0 U32_MAX 1 nfsv3 unsigned 32-bit seconds/ns 0 U32_MAX 1000 nfsv4 u64 seconds/u32 ns S64_MIN S64_MAX 1000 isofs u8 year since 1900 (fixable) 1900 2155 alloc_super hpfs unsigned 32-bit seconds 1970 2106 alloc_super fat 7-bit years, 2s resolution 1980 2107 cifs (smb) 7-bit years 1980 2107 cifs (modern) 64-bit 100ns since 1601 1601 30828 adfs 40-bit cs since 1900 1900 2248 9p (9P2000) unsigned 32-bit seconds 1970 2106 9p (9P2000.L) signed 64-bit seconds, ns 1970 S64_MAX Granularity column filled in by the alloc_super() in the above table indicates that the granularity is NSEC_PER_SEC. Note that anything not mentioned above still has the default limits S64_MIN..S64_MAX. The patches in the series are as structured below: 1. Add vfs support to maintain the limits per filesystem. 2. Add a new timestamp_truncate() api for clamping timestamps according to the filesystem limits. 3. Add a warning for mount syscall to indicate the impending expiry of timestamps. 4. Modify utimes to clamp the timestamps. 5. Fill in limits for filesystems. An updated version of the test for checking file system timestamp limits has been posted at https://www.spinics.net/lists/fstests/msg12262.html Changes from previous version: * No change in mount behavior because of expiry of timestamps. * Included limits for more filesystems. Deepa Dinamani (20): vfs: Add file timestamp range support vfs: Add timestamp_truncate() api timestamp_truncate: Replace users of timespec64_trunc mount: Add mount warning for impending timestamp expiry utimes: Clamp the timestamps before update fs: Fill in max and min timestamps in superblock 9p: Fill min and max timestamps in sb adfs: Fill in max and min timestamps in sb ext4: Initialize timestamps limits fs: nfs: Initialize filesystem timestamp ranges fs: cifs: Initialize filesystem timestamp ranges fs: fat: Initialize filesystem timestamp ranges fs: affs: Initialize filesystem timestamp ranges fs: sysv: Initialize filesystem timestamp ranges fs: ceph: Initialize filesystem timestamp ranges fs: orangefs: Initialize filesystem timestamp ranges fs: hpfs: Initialize filesystem timestamp ranges fs: omfs: Initialize filesystem timestamp ranges pstore: fs superblock limits isofs: Initialize filesystem timestamp ranges fs/9p/vfs_super.c | 6 +++++- fs/adfs/adfs.h | 13 +++++++++++++ fs/adfs/inode.c | 8 ++------ fs/adfs/super.c | 2 ++ fs/affs/amigaffs.c | 2 +- fs/affs/amigaffs.h | 3 +++ fs/affs/inode.c | 4 ++-- fs/affs/super.c | 4 ++++ fs/attr.c | 21 ++++++++++++--------- fs/befs/linuxvfs.c | 2 ++ fs/bfs/inode.c | 2 ++ fs/ceph/super.c | 2 ++ fs/cifs/cifsfs.c | 22 ++++++++++++++++++++++ fs/cifs/netmisc.c | 14 +++++++------- fs/coda/inode.c | 3 +++ fs/configfs/inode.c | 12 ++++++------ fs/cramfs/inode.c | 2 ++ fs/efs/super.c | 2 ++ fs/ext2/super.c | 2 ++ fs/ext4/ext4.h | 4 ++++ fs/ext4/super.c | 17 +++++++++++++++-- fs/f2fs/file.c | 21 ++++++++++++--------- fs/fat/inode.c | 12 ++++++++++++ fs/fat/misc.c | 5 +++-- fs/freevxfs/vxfs_super.c | 2 ++ fs/hpfs/hpfs_fn.h | 6 ++---- fs/hpfs/super.c | 2 ++ fs/inode.c | 33 ++++++++++++++++++++++++++++++++- fs/isofs/inode.c | 7 +++++++ fs/jffs2/fs.c | 3 +++ fs/jfs/super.c | 2 ++ fs/kernfs/inode.c | 6 +++--- fs/minix/inode.c | 2 ++ fs/namespace.c | 11 +++++++++++ fs/nfs/super.c | 20 +++++++++++++++++++- fs/ntfs/inode.c | 21 ++++++++++++--------- fs/omfs/inode.c | 4 ++++ fs/orangefs/super.c | 2 ++ fs/pstore/inode.c | 4 +++- fs/qnx4/inode.c | 2 ++ fs/qnx6/inode.c | 2 ++ fs/reiserfs/super.c | 3 +++ fs/romfs/super.c | 2 ++ fs/squashfs/super.c | 2 ++ fs/super.c | 2 ++ fs/sysv/super.c | 5 ++++- fs/ubifs/file.c | 21 ++++++++++++--------- fs/ufs/super.c | 7 +++++++ fs/utimes.c | 17 +++++++++++++---- fs/xfs/xfs_super.c | 2 ++ include/linux/fs.h | 5 +++++ include/linux/time64.h | 2 ++ 52 files changed, 304 insertions(+), 78 deletions(-) -- 2.17.1 Cc: adilger.kernel(a)dilger.ca Cc: adrian.hunter(a)intel.com Cc: aivazian.tigran(a)gmail.com Cc: al(a)alarsen.net Cc: anna.schumaker(a)netapp.com Cc: anton(a)enomsg.org Cc: anton(a)tuxera.com Cc: asmadeus(a)codewreck.org Cc: ccross(a)android.com Cc: ceph-devel(a)vger.kernel.org Cc: coda(a)cs.cmu.edu Cc: codalist(a)coda.cs.cmu.edu Cc: darrick.wong(a)oracle.com Cc: dedekind1(a)gmail.com Cc: devel(a)lists.orangefs.org Cc: dsterba(a)suse.com Cc: dushistov(a)mail.ru Cc: dwmw2(a)infradead.org Cc: ericvh(a)gmail.com Cc: gregkh(a)linuxfoundation.org Cc: hch(a)infradead.org Cc: hch(a)lst.de Cc: hirofumi(a)mail.parknet.co.jp Cc: hubcap(a)omnibond.com Cc: idryomov(a)gmail.com Cc: jack(a)suse.com Cc: jaegeuk(a)kernel.org Cc: jaharkes(a)cs.cmu.edu Cc: jfs-discussion(a)lists.sourceforge.net Cc: jlbec(a)evilplan.org Cc: keescook(a)chromium.org Cc: linux-cifs(a)vger.kernel.org Cc: linux-ext4(a)vger.kernel.org Cc: linux-f2fs-devel(a)lists.sourceforge.net Cc: linux-karma-devel(a)lists.sourceforge.net Cc: linux-mtd(a)lists.infradead.org Cc: linux-nfs(a)vger.kernel.org Cc: linux-ntfs-dev(a)lists.sourceforge.net Cc: linux-xfs(a)vger.kernel.org Cc: lucho(a)ionkov.net Cc: luisbg(a)kernel.org Cc: martin(a)omnibond.com Cc: me(a)bobcopeland.com Cc: mikulas(a)artax.karlin.mff.cuni.cz Cc: nico(a)fluxnic.net Cc: phillip(a)squashfs.org.uk Cc: reiserfs-devel(a)vger.kernel.org Cc: richard(a)nod.at Cc: sage(a)redhat.com Cc: salah.triki(a)gmail.com Cc: sfrench(a)samba.org Cc: shaggy(a)kernel.org Cc: tj(a)kernel.org Cc: tony.luck(a)intel.com Cc: trond.myklebust(a)hammerspace.com Cc: tytso(a)mit.edu Cc: v9fs-developer(a)lists.sourceforge.net Cc: yuchao0(a)huawei.com Cc: zyan(a)redhat.com

5 years, 3 months

[PATCH 0/2] Unify the system call scripts

by Firoz Khan

System call table generation support is provided for alpha, ia64, m68k, microblaze, mips, parisc, powerpc, sh, sparc and xtensa architectures. The implementat- ions are almost similar across all the above archte- ctures. In order to reduce the source code across all the above architectures, create common ".sh" files and keep it in the common directory, script/. This will be a generic scripts which can use for all the above architectures. This patch depends on; https://lore.kernel.org/lkml/1546439331-18646-1-git-send-email-firoz.khan@l… Firoz Khan (2): mips: remove nargs from __SYSCALL mips: generate uapi header and system call table files arch/mips/kernel/scall32-o32.S | 2 +- arch/mips/kernel/scall64-n32.S | 2 +- arch/mips/kernel/scall64-n64.S | 2 +- arch/mips/kernel/scall64-o32.S | 2 +- arch/mips/kernel/syscalls/Makefile | 6 +++--- arch/mips/kernel/syscalls/syscallhdr.sh | 37 --------------------------------- arch/mips/kernel/syscalls/syscallnr.sh | 28 ------------------------- arch/mips/kernel/syscalls/syscalltbl.sh | 36 -------------------------------- 8 files changed, 7 insertions(+), 108 deletions(-) delete mode 100644 arch/mips/kernel/syscalls/syscallhdr.sh delete mode 100644 arch/mips/kernel/syscalls/syscallnr.sh delete mode 100644 arch/mips/kernel/syscalls/syscalltbl.sh -- 1.9.1

5 years, 3 months

Drive World Conference and Expo 2019 - Attendees List

by Richard Cohen

Hi, I believe that you are one of the Exhibitors of upcoming event "Drive World Conference & Expo 2019" held on 27th - 29th August| Santa Clara, United States. If you are interested in acquiring the attendees list of Drive World Conference & Expo reply to this email and I shall revert back with pricing, counts and other deliverables. Thank you and I look forward to hear from you soon. Regards, Richard Cohen | Inside Sales, USA & Europe| Email : richardc(a)expolist.us "If you don't wish to receive emails from us reply back with LEAVE OUT"

5 years, 4 months

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Y2038 July 2019