Jason Low 7110744516 sched, timer: Use the atomic task_cputime in thread_group_cputimer ... Recent optimizations were made to thread_group_cputimer to improve its scalability by keeping track of cputime stats without a lock. However, the values were open coded to the structure, causing them to be at a different abstraction level from the regular task_cputime structure. Furthermore, any subsequent similar optimizations would not be able to share the new code, since they are specific to thread_group_cputimer. This patch adds the new task_cputime_atomic data structure (introduced in the previous patch in the series) to thread_group_cputimer for keeping track of the cputime atomically, which also helps generalize the code. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jason Low <jason.low2@hp.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rik van Riel <riel@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Aswin Chandramouleeswaran <aswin@hp.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Galbraith <umgwanakikbuti@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Scott J Norton <scott.norton@hp.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Waiman Long <Waiman.Long@hp.com> Link: http://lkml.kernel.org/r/1430251224-5764-6-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-05-08 12:17:46 +02:00
..
auto_group.c	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00
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	kernel/sched/clock.c: add another clock for use with the soft lockup watchdog	2015-02-12 18:54:13 -08:00
completion.c	sched/completion: Serialize completion_done() with complete()	2015-02-18 14:27:40 +01:00
core.c	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00
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: Remove cpu_active_mask from cpudl_find()	2015-02-04 07:52:29 +01:00
cpudeadline.h	sched/deadline: Modify cpudl::free_cpus to reflect rd->online	2015-01-30 19:39:16 +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, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00
deadline.c	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00
debug.c	sched: Track group sched_entity usage contributions	2015-03-27 09:35:58 +01:00
fair.c	sched/numa: Document usages of mm->numa_scan_seq	2015-05-08 12:13:13 +02:00
features.h	sched/rt: Use IPI to trigger RT task push migration instead of pulling	2015-03-23 10:55:22 +01:00
idle_task.c	sched: Provide update_curr callbacks for stop/idle scheduling classes	2014-11-23 14:14:40 -08:00
idle.c	cpuidle: Run tick_broadcast_exit() with disabled interrupts	2015-04-29 15:19:21 +02:00
loadavg.c	sched: Move the loadavg code to a more obvious location	2015-05-08 12:04:12 +02:00
Makefile	sched: Move the loadavg code to a more obvious location	2015-05-08 12:04:12 +02:00
rt.c	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00
sched.h	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +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, timer: Use the atomic task_cputime in thread_group_cputimer	2015-05-08 12:17:46 +02:00
stop_task.c	sched: Provide update_curr callbacks for stop/idle scheduling classes	2014-11-23 14:14:40 -08:00
wait.c	sched, timer: Convert usages of ACCESS_ONCE() in the scheduler to READ_ONCE()/WRITE_ONCE()	2015-05-08 12:11:32 +02:00