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linux/kernel/time
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Richard Larocque 0d67673fea alarmtimer: Lock k_itimer during timer callback 
commit 474e941bed upstream.

Locks the k_itimer's it_lock member when handling the alarm timer's
expiry callback.

The regular posix timers defined in posix-timers.c have this lock held
during timout processing because their callbacks are routed through
posix_timer_fn().  The alarm timers follow a different path, so they
ought to grab the lock somewhere else.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Sharvil Nanavati <sharvil@google.com>
Signed-off-by: Richard Larocque <rlarocque@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2014-10-05 14:52:22 -07:00
..
alarmtimer.c alarmtimer: Lock k_itimer during timer callback 2014-10-05 14:52:22 -07:00
clockevents.c timer: Fix lock inversion between hrtimer_bases.lock and scheduler locks 2014-08-07 14:52:38 -07:00
clocksource.c time: Fix signedness bug in sysfs_get_uname() and its callers 2013-10-18 16:45:58 -07:00
jiffies.c time: Fix overflow when HZ is smaller than 60 2014-02-06 16:01:40 +01:00
Kconfig nohz: Drop generic vtime obsolete dependency on CONFIG_64BIT 2013-09-30 15:37:01 +02:00
Makefile sched_clock: Make ARM's sched_clock generic for all architectures 2013-06-12 14:02:13 -07:00
ntp.c Linux 3.12-rc3 2013-10-03 07:52:21 +02:00
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
sched_clock.c sched_clock: Avoid corrupting hrtimer tree during suspend 2014-08-07 14:52:38 -07:00
tick-broadcast.c tick: Clear broadcast pending bit when switching to oneshot 2014-02-13 21:55:54 +01:00
tick-common.c tick-common: Fix wrong check in tick_check_replacement() 2014-05-31 13:20:28 -07:00
tick-internal.h tick/timekeeping: Call update_wall_time outside the jiffies lock 2013-12-23 11:54:32 -08:00
tick-oneshot.c clockevents: Make minimum delay adjustments configurable 2011-09-08 11:10:56 +02:00
tick-sched.c tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz() 2014-05-31 13:20:28 -07:00
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 time: Revert to calling clock_was_set_delayed() while in irq context 2014-03-28 08:07:07 +01:00
timekeeping_debug.c power: Add option to log time spent in suspend 2013-05-29 12:57:34 -07:00
timekeeping_internal.h power: Add option to log time spent in suspend 2013-05-29 12:57:34 -07:00
timer_list.c timer_list: correct the iterator for timer_list 2013-08-28 19:26:38 -07:00
timer_stats.c timer stats: Add a 'Collection: active/inactive' line to timer usage statistics 2013-10-10 09:59:25 +02:00