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1f03e8d291
linux/kernel/sched
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Peter Zijlstra 1f03e8d291 locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() 
This new form allows using hardware assisted waiting.

Some hardware (ARM64 and x86) allow monitoring an address for changes,
so by providing a pointer we can use this to replace the cpu_relax()
with hardware optimized methods in the future.

Requested-by: Will Deacon <will.deacon@arm.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-14 11:54:27 +02:00
..
auto_group.c sched/core: Move the sched_to_prio[] arrays out of line 2015-12-04 10:34:46 +01:00
auto_group.h sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE() 2015-05-08 12:11:32 +02:00
clock.c sched/clock: Make local_clock()/cpu_clock() inline 2016-04-13 12:25:22 +02:00
completion.c sched/completion: Serialize completion_done() with complete() 2015-02-18 14:27:40 +01:00
core.c locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() 2016-06-14 11:54:27 +02:00
cpuacct.c sched/cpuacct: Check for NULL when using task_pt_regs() 2016-04-13 13:22:37 +02:00
cpuacct.h sched/cpuacct: Simplify the cpuacct code 2016-03-21 11:00:28 +01:00
cpudeadline.c sched/core: Use tsk_cpus_allowed() instead of accessing ->cpus_allowed 2016-05-12 09:55:35 +02:00
cpudeadline.h sched/deadline: Unify dl_time_before() usage 2015-09-23 09:51:25 +02:00
cpufreq_schedutil.c cpufreq: schedutil: Improve prints messages with pr_fmt 2016-05-19 01:02:52 +02:00
cpufreq.c cpufreq: sched: Helpers to add and remove update_util hooks 2016-04-02 01:08:43 +02:00
cpupri.c sched/core: Use tsk_cpus_allowed() instead of accessing ->cpus_allowed 2016-05-12 09:55:35 +02:00
cpupri.h sched/cpupri: Remove unnecessary definitions in cpupri.h 2014-11-16 10:58:59 +01:00
cputime.c sched/cputime: Fix steal_account_process_tick() to always return jiffies 2016-03-08 12:24:56 +01:00
deadline.c sched/core: Provide a tsk_nr_cpus_allowed() helper 2016-05-12 09:55:36 +02:00
debug.c sched/debug: Fix /proc/sched_debug regression 2016-06-08 14:31:58 +02:00
fair.c sched/fair: Correct unit of load_above_capacity 2016-05-12 09:55:33 +02:00
features.h sched/fair: Convert arch_scale_cpu_capacity() from weak function to #define 2015-09-13 09:52:55 +02:00
idle_task.c locking/lockdep, sched/core: Implement a better lock pinning scheme 2016-05-05 09:23:59 +02:00
idle.c cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE 2016-06-02 23:05:27 +02:00
loadavg.c sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems 2016-05-12 09:55:34 +02:00
Makefile cpufreq: schedutil: New governor based on scheduler utilization data 2016-04-02 01:09:12 +02:00
rt.c sched/core: Provide a tsk_nr_cpus_allowed() helper 2016-05-12 09:55:36 +02:00
sched.h locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() 2016-06-14 11:54:27 +02:00
stats.c sched: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:37 -08:00
stats.h sched/debug: Fix /proc/sched_debug regression 2016-06-08 14:31:58 +02:00
stop_task.c locking/lockdep, sched/core: Implement a better lock pinning scheme 2016-05-05 09:23:59 +02:00
swait.c wait.[ch]: Introduce the simple waitqueue (swait) implementation 2016-02-25 11:27:16 +01:00
wait.c sched/wait: Fix the signal handling fix 2015-12-13 14:30:59 -08:00