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android_kernel_google_msm/kernel/sched
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Lai Jiangshan d6e81d4f7b sched: Fix hotplug vs. set_cpus_allowed_ptr() 
commit 6acbfb9697 upstream.

Lai found that:

  WARNING: CPU: 1 PID: 13 at arch/x86/kernel/smp.c:124 native_smp_send_reschedule+0x2d/0x4b()
  ...
  migration_cpu_stop+0x1d/0x22

was caused by set_cpus_allowed_ptr() assuming that cpu_active_mask is
always a sub-set of cpu_online_mask.

This isn't true since 5fbd036b55 ("sched: Cleanup cpu_active madness").

So set active and online at the same time to avoid this particular
problem.

Fixes: 5fbd036b55 ("sched: Cleanup cpu_active madness")
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael wang <wangyun@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Link: http://lkml.kernel.org/r/53758B12.8060609@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-11 12:04:11 -07:00
..
auto_group.c Revert "sched, autogroup: Stop going ahead if autogroup is disabled" 2012-12-10 10:59:40 -08:00
auto_group.h Revert "sched, autogroup: Stop going ahead if autogroup is disabled" 2012-12-10 10:59:40 -08:00
clock.c sched_clock: Prevent 64bit inatomicity on 32bit systems 2013-04-16 21:27:27 -07:00
core.c sched: Fix hotplug vs. set_cpus_allowed_ptr() 2014-06-11 12:04:11 -07:00
cpupri.c sched: Use CPUPRI_NR_PRIORITIES instead of MAX_RT_PRIO in cpupri check 2014-06-11 12:04:10 -07:00
cpupri.h
debug.c sched: Avoid throttle_cfs_rq() racing with period_timer stopping 2014-01-08 09:42:12 -08:00
fair.c sched: Fix double normalization of vruntime 2014-03-23 21:37:03 -07:00
features.h sched: Fix more load-balancing fallout 2012-04-26 12:54:52 +02:00
idle_task.c sched/nohz: Rewrite and fix load-avg computation -- again 2012-07-19 08:58:56 -07:00
Makefile
rt.c sched/rt: Avoid updating RT entry timeout twice within one tick period 2014-02-13 11:51:19 -08:00
sched.h sched/nohz: Fix rq->cpu_load[] calculations 2014-02-20 10:45:32 -08:00
stats.c sched: Remove sched_switch 2012-01-27 13:28:53 +01:00
stats.h
stop_task.c sched: Fix migration thread runtime bogosity 2012-10-13 05:39:01 +09:00