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linux-uconsole/kernel/time
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Thomas Gleixner ec804bd9e1 nohz: Fix another inconsistency between CONFIG_NO_HZ=n and nohz=off 
commit 0e576acbc1 upstream.

If CONFIG_NO_HZ=n tick_nohz_get_sleep_length() returns NSEC_PER_SEC/HZ.

If CONFIG_NO_HZ=y and the nohz functionality is disabled via the
command line option "nohz=off" or not enabled due to missing hardware
support, then tick_nohz_get_sleep_length() returns 0. That happens
because ts->sleep_length is never set in that case.

Set it to NSEC_PER_SEC/HZ when the NOHZ mode is inactive.

Reported-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rui Xiang <rui.xiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-26 15:12:41 -04:00
..
alarmtimer.c alarmtimer: return EINVAL instead of ENOTSUPP if rtcdev doesn't exist 2013-12-04 10:55:49 -08:00
clockevents.c clockevents: Add module refcount 2013-12-08 07:29:27 -08:00
clocksource.c kernel-time: fix s/then/than/ spelling errors 2012-03-23 16:49:21 -07:00
jiffies.c time: Fix overflow when HZ is smaller than 60 2014-02-22 12:41:29 -08:00
Kconfig Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-15 14:05:17 -07:00
Makefile time: remove the timecompare code. 2012-11-01 11:41:35 -04:00
ntp.c ntp: Make periodic RTC update more reliable 2013-12-08 07:29:28 -08:00
ntp_internal.h ntp: Rework do_adjtimex to take timespec and tai arguments 2013-04-04 13:18:15 -07:00
posix-clock.c kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure 2011-10-31 19:30:05 -04:00
tick-broadcast.c tick: Make oneshot broadcast robust vs. CPU offlining 2014-03-23 21:38:21 -07:00
tick-common.c clockevents: Prefer CPU local devices over global devices 2013-12-08 07:29:27 -08:00
tick-internal.h clockevents: Get rid of the notifier chain 2013-12-08 07:29:27 -08:00
tick-oneshot.c clockevents: Make minimum delay adjustments configurable 2011-09-08 11:10:56 +02:00
tick-sched.c nohz: Fix another inconsistency between CONFIG_NO_HZ=n and nohz=off 2014-06-26 15:12:41 -04:00
timeconv.c time: add function to convert between calendar time and broken-down time for universal use 2009-09-24 07:20:56 -07:00
timekeeping.c timekeeping: Avoid possible deadlock from clock_was_set_delayed 2014-02-13 13:48:04 -08:00
timer_list.c timer_list: correct the iterator for timer_list 2013-09-07 22:09:58 -07:00
timer_stats.c locking, timer_stats: Annotate table_lock as raw 2011-09-13 11:12:00 +02:00