tree c4e69506205a175fa9675e5dcec1ad4944c4b87a
parent e1c3ad96f662bf1071a71feffadfe0f7604f14e2
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1131353942 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1131378812 -0800

[PATCH] s390: stop_hz_timer vs. xtime updates

The calculation of the value return by next_timer_interrupt from jiffies to
jiffies_64 is racy against xtime updates.  We need to protect the calculation
with read_seqbegin/read_seqretry.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>