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linux-hardened/kernel/sched
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Andy Lutomirski fd7de1e8d5 sched: Add missing rcu protection to wake_up_all_idle_cpus 
Locklessly doing is_idle_task(rq->curr) is only okay because of
RCU protection.  The older variant of the broken code checked
rq->curr == rq->idle instead and therefore didn't need RCU.

Fixes: f6be8af1c9 ("sched: Add new API wake_up_if_idle() to wake up the idle cpu")
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/729365dddca178506dfd0a9451006344cd6808bc.1417277372.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-12-08 11:44:19 +01:00
..
auto_group.c sched: Change autogroup_move_group() to use for_each_thread() 2014-08-20 09:47:18 +02:00
auto_group.h Revert "sched/autogroup: Fix crash on reboot when autogroup is disabled" 2012-12-11 10:23:45 +01:00
clock.c time: Replace __get_cpu_var uses 2014-08-26 13:45:44 -04:00
completion.c sched/completion: Document when to use wait_for_completion_io_*() 2014-11-16 10:58:54 +01:00
core.c sched: Add missing rcu protection to wake_up_all_idle_cpus 2014-12-08 11:44:19 +01:00
cpuacct.c cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes 2014-07-15 11:05:09 -04:00
cpuacct.h sched/cpuacct: Initialize root cpuacct earlier 2013-04-10 13:54:20 +02:00
cpudeadline.c sched/deadline: Fix inter- exclusive cpusets migrations 2014-09-24 14:46:57 +02:00
cpudeadline.h sched/deadline: Remove unnecessary definitions in cpudeadline.h 2014-11-16 10:59:00 +01:00
cpupri.c Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
cpupri.h sched/cpupri: Remove unnecessary definitions in cpupri.h 2014-11-16 10:58:59 +01:00
cputime.c sched, time: Fix build error with 64 bit cputime_t on 32 bit systems 2014-10-03 05:46:55 +02:00
deadline.c sched/deadline: Introduce start_hrtick_dl() for !CONFIG_SCHED_HRTICK 2014-11-16 10:59:03 +01:00
debug.c sched: Refactor task_struct to use numa_faults instead of numa_* pointers 2014-11-04 07:17:57 +01:00
fair.c sched/fair: Fix stale overloaded status in the busiest group finding logic 2014-11-16 10:58:56 +01:00
features.h sched: Rename capacity related flags 2014-06-05 11:52:32 +02:00
idle.c sched: Let the scheduler see CPU idle states 2014-09-24 14:46:58 +02:00
idle_task.c sched: Transform resched_task() into resched_curr() 2014-07-16 13:38:19 +02:00
Makefile sched/idle: Move cpu/idle.c to sched/idle.c 2014-02-11 09:58:30 +01:00
proc.c cpuidle: menu: Lookup CPU runqueues less 2014-08-06 21:17:45 +02:00
rt.c sched: Move p->nr_cpus_allowed check to select_task_rq() 2014-11-16 10:58:55 +01:00
sched.h Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying more changes 2014-11-16 10:50:25 +01:00
stats.c kernel: audit/fix non-modular users of module_init in core code 2014-04-03 16:21:07 -07:00
stats.h sched: Micro-optimize by dropping unnecessary task_rq() calls 2013-09-25 13:51:06 +02:00
stop_task.c sched: Add wrapper for checking task_struct::on_rq 2014-08-20 14:52:59 +02:00
wait.c sched/wait: Fix a kthread race with wait_woken() 2014-11-04 07:17:44 +01:00