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I will post xfs tests that validate mount and range checking.
I will keep the policy same as what the RFC suggests for now.
Clamping can be verified once vfs is transitioned to using time64_t.
Thanks,
Deepa
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 idea for the series was the discussion:
https://lkml.org/lkml/2014/5/30/551
Patches 5 and 6 can be merged only after vfs is transitioned
to use 64 bit timestamps as noted in the respective commit
texts.
The series only includes adding range limits to filesystems:
ext4 and afs as examples to keep the series simple.
Every filesystem will be updated to add these limits.
There is an ext4 current_time() api replacement patch that the
series depends on:
https://lkml.org/lkml/2016/6/9/38 .
This needs reposting to the mailing list.
The branch for the tree along with dependency can be found at
https://github.com/deepa-hub/vfs.git refs/heads/vfs_timestamp_policy
Deepa Dinamani (6):
vfs: Add file timestamp range support
vfs: Add checks for filesystem timestamp limits
afs: Add time limits in the super block
ext4: Initialize timestamps limits
vfs: Add timestamp_truncate() api
utimes: Clamp the timestamps before update
fs/afs/super.c | 2 ++
fs/ext4/ext4.h | 4 ++++
fs/ext4/super.c | 7 ++++++-
fs/inode.c | 37 ++++++++++++++++++++++++++++++++++++-
fs/internal.h | 2 ++
fs/libfs.c | 4 ++++
fs/namespace.c | 12 ++++++++++++
fs/super.c | 8 ++++++++
fs/utimes.c | 17 +++++++++++++----
include/linux/fs.h | 4 ++++
include/linux/time64.h | 6 ++++++
include/uapi/linux/fs.h | 6 +++++-
kernel/sysctl.c | 7 +++++++
13 files changed, 109 insertions(+), 7 deletions(-)
--
2.7.4
Cc: linux-afs(a)lists.infradead.org
Cc: "Theodore Ts'o" <tytso(a)mit.edu>
Cc: Andreas Dilger <adilger.kernel(a)dilger.ca>
Cc: linux-ext4(a)vger.kernel.org
Reposting the series as I did not hear comments from the
maintainers.
The series is aimed at making input events y2038 safe.
It extends the lifetime of the realtime timestamps in the
events to year 2106.
The plan is to deprecate realtime timestamps anyway as they
are not appropriate for these timestamps as noted in the patch
a80b83b7b8 by John Stultz.
The series is a result of many discussions with Arnd Bergmann.
The design updates the format of the input events read/ written
to the device nodes. This structure and the uapi/input.h
header file are copied across many userspace libraries.
These libraries not only use this struct input_event locally,
but also expose interfaces that contain input_event. To maintain
backward compatibility with all these interfaces, kernel
updates the format of the input events at the dev node to
struct raw_input_event. Kernel also maintains the old struct
input_event and provides apis to convert between the old and new
input event types.
The userspace library changes to libevdev, libuinput and mtdev
will be posted to the respective mailing groups for review.
Once there is a consensus on the design, all the changes dependent
on the kernel change will be merged at the same time.
Changes from v1:
* Updated changes according to review comments.
* Posted userspace library changes that go along with the series.
Deepa Dinamani (4):
uinput: Add ioctl for using monotonic/ boot times
input: evdev: Replace timeval with timespec64
input: Deprecate real timestamps beyond year 2106
input: serio: Replace timeval by timespec64
drivers/input/evdev.c | 57 ++++++++++++++++++++----------------
drivers/input/input-compat.c | 29 ++++++++++---------
drivers/input/input-compat.h | 19 +++++++-----
drivers/input/misc/uinput.c | 62 +++++++++++++++++++++++++++++++++++++---
drivers/input/serio/hil_mlc.c | 37 ++++++++++++------------
drivers/input/serio/hp_sdc.c | 17 +++++------
drivers/input/serio/hp_sdc_mlc.c | 10 +++----
include/linux/hil_mlc.h | 6 ++--
include/linux/hp_sdc.h | 6 ++--
include/linux/uinput.h | 3 +-
include/uapi/linux/input.h | 47 ++++++++++++++++++++++++++++++
include/uapi/linux/uinput.h | 3 ++
12 files changed, 208 insertions(+), 88 deletions(-)
--
2.7.4
