linux-next

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-15 21:23:23 +00:00

History

Li Zhong 1a7f829f09 nohz: Fix notifier return val that enforce timekeeping

In tick_nohz_cpu_down_callback() if the cpu is the one handling
timekeeping, we must return something that stops the CPU_DOWN_PREPARE
notifiers and then start notify CPU_DOWN_FAILED on the already called
notifier call backs.

However traditional errno values are not handled by the notifier unless
these are encapsulated using errno_to_notifier().

Hence the current -EINVAL is misinterpreted and converted to junk after
notifier_to_errno(), leaving the notifier subsystem to random behaviour
such as eventually allowing the cpu to go down.

Fix this by using the standard NOTIFY_BAD instead.

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2013-05-31 11:33:10 +02:00

alarmtimer.c

alarmtimer: Rename alarmtimer_remove to alarmtimer_dequeue

2012-09-24 12:38:03 -04:00

clockevents.c

clockevents: export clockevents_config_and_register for module use

2013-01-14 10:12:37 -08:00

clocksource.c

kernel-time: fix s/then/than/ spelling errors

2012-03-23 16:49:21 -07:00

jiffies.c

time: Kill xtime_lock, replacing it with jiffies_lock