Oleg Nesterov c04dca02bc hrtimer: Remove HRTIMER_STATE_MIGRATE ...

I do not understand HRTIMER_STATE_MIGRATE. Unless I am totally
confused it looks buggy and simply unneeded.

migrate_hrtimer_list() sets it to keep hrtimer_active() == T, but this
is not enough: this can fool, say, hrtimer_is_queued() in
dequeue_signal().

Can't migrate_hrtimer_list() simply use HRTIMER_STATE_ENQUEUED?
This fixes the race and we can kill STATE_MIGRATE.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: ktkhai@parallels.com
Cc: rostedt@goodmis.org
Cc: juri.lelli@gmail.com
Cc: pang.xunlei@linaro.org
Cc: wanpeng.li@linux.intel.com
Cc: umgwanakikbuti@gmail.com
Link: http://lkml.kernel.org/r/20150611124743.072387650@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2015-06-19 00:09:56 +02:00

..

alarmtimer.c

alarmtimer: Get rid of unused return value

2015-04-22 17:06:52 +02:00

clockevents.c

clockevents: Check state instead of mode in suspend/resume path

2015-06-18 09:27:02 +02:00

clocksource.c

clocksource: Use current logging style

2015-06-10 11:31:14 +02:00

hrtimer.c

hrtimer: Remove HRTIMER_STATE_MIGRATE

2015-06-19 00:09:56 +02:00

itimer.c

time/timers: Move all time(r) related files into kernel/time

2014-06-23 11:22:35 +02:00

jiffies.c

tick: Move clocksource related stuff to timekeeping.h

2015-04-01 14:22:58 +02:00

Kconfig

clockevents: Remove CONFIG_GENERIC_CLOCKEVENTS_BUILD

2015-04-01 14:22:57 +02:00

Makefile

time: Move timeconst.h into include/generated

2015-05-19 15:13:45 +02:00

ntp_internal.h

time: Prevent early expiry of hrtimers[CLOCK_REALTIME] at the leap second edge

2015-06-12 11:15:49 +02:00

ntp.c

ntp: Do leapsecond adjustment in adjtimex read path

2015-06-12 11:15:49 +02:00

posix-clock.c

kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure

2011-10-31 19:30:05 -04:00

posix-cpu-timers.c

all arches, signal: move restart_block to struct task_struct

2015-02-12 18:54:12 -08:00

posix-timers.c

hrtimer: Get rid of hrtimer_get_res()

2015-04-22 17:06:49 +02:00

sched_clock.c

timers, sched/clock: Clean up the code a bit

2015-03-27 08:34:01 +01:00

test_udelay.c

time: Rename udelay_test.c to test_udelay.c

2014-11-21 11:59:55 -08:00

tick-broadcast-hrtimer.c

tick: hrtimer-broadcast: Prevent endless restarting when broadcast device is unused

2015-05-05 15:34:21 +02:00

tick-broadcast.c

clockevents: Provide functions to set and get the state

2015-06-02 14:40:47 +02:00

tick-common.c

clockevents: Use set/get state helper functions

2015-06-02 14:40:48 +02:00

tick-internal.h

clockevents: Rename state to state_use_accessors

2015-06-02 16:56:42 +02:00

tick-oneshot.c

clockevents: Provide functions to set and get the state

2015-06-02 14:40:47 +02:00

tick-sched.c

nohz: Fix !HIGH_RES_TIMERS hang

2015-05-07 16:15:50 +02:00

tick-sched.h

tick: Nohz: Rework next timer evaluation

2015-04-22 17:06:50 +02:00

time.c

time: Refactor usecs_to_jiffies

2015-06-10 11:31:13 +02:00

timeconst.bc

time: Move timeconst.h into include/generated

2015-05-19 15:13:45 +02:00

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

timecounter.c

timecounter: keep track of accumulated fractional nanoseconds

2014-12-30 18:29:27 -05:00

timekeeping_debug.c

timekeeping: Convert timekeeping core to use timespec64s

2014-07-23 10:17:54 -07:00

timekeeping_internal.h

clocksource: Move cycle_last validation to core code

2014-07-23 15:01:51 -07:00

timekeeping.c

timekeeping: Copy the shadow-timekeeper over the real timekeeper last

2015-06-18 09:27:02 +02:00

timekeeping.h

hrtimer: Make offset update smarter

2015-04-22 17:06:49 +02:00

timer_list.c

clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state

2015-05-19 16:18:02 +02:00

timer_stats.c

timer stats: Add a 'Collection: active/inactive' line to timer usage statistics

2013-10-10 09:59:25 +02:00

timer.c

tracing: timer: Add deferrable flag to timer_start

2015-05-22 10:36:06 -07:00