timekeeping: Fix missing timekeeping_update in suspend path
authorJohn Stultz <john.stultz@linaro.org>
Thu, 12 Dec 2013 03:10:36 +0000 (19:10 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Feb 2014 21:55:46 +0000 (13:55 -0800)
commit93aca8a79e4e9bb89816d00eb50d5f77fd63fcf2
tree1dc79ad35e6ea6a4190ff7645be12382da536367
parent36050e26ea36f130d1c36fe51c4ffffdff49fe72
timekeeping: Fix missing timekeeping_update in suspend path

commit 330a1617b0a6268d427aa5922c94d082b1d3e96d upstream.

Since 48cdc135d4840 (Implement a shadow timekeeper), we have to
call timekeeping_update() after any adjustment to the timekeeping
structure in order to make sure that any adjustments to the structure
persist.

In the timekeeping suspend path, we udpate the timekeeper
structure, so we should be sure to update the shadow-timekeeper
before releasing the timekeeping locks. Currently this isn't done.

In most cases, the next time related code to run would be
timekeeping_resume, which does update the shadow-timekeeper, but
in an abundence of caution, this patch adds the call to
timekeeping_update() in the suspend path.

Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
kernel/time/timekeeping.c