time: Add y2038 safe update_persistent_clock64()
authorXunlei Pang <pang.xunlei@linaro.org>
Thu, 2 Apr 2015 03:34:23 +0000 (20:34 -0700)
committerIngo Molnar <mingo@kernel.org>
Fri, 3 Apr 2015 06:18:20 +0000 (08:18 +0200)
commit3c00a1fe8496ff29ab62764bb3f4ce4b48089004
tree1d0ebcd277eb8e7bede0f7e4d8ef26a04285e30b
parent2ee966320028ac846654eba5344540eeb4dc228d
time: Add y2038 safe update_persistent_clock64()

As part of addressing in-kernel y2038 issues, this patch adds
update_persistent_clock64() and replaces all the call sites of
update_persistent_clock() with this function. This is a __weak
implementation, which simply calls the existing y2038 unsafe
update_persistent_clock().

This allows architecture specific implementations to be
converted independently, and eventually y2038-unsafe
update_persistent_clock() can be removed after all its
architecture specific implementations have been converted to
update_persistent_clock64().

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1427945681-29972-4-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
drivers/rtc/systohc.c
include/linux/timekeeping.h
kernel/time/ntp.c