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authorLinus Torvalds <torvalds@linux-foundation.org>2015-08-31 20:26:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-08-31 20:26:22 -0700
commita1d8561172f369ba56d636df49a6b4d6d77e2123 (patch)
tree746e4666ec62e057887ee9c884eb613c03f9ff28 /arch/avr32
parent3959df1dfb9538498ec3372a2d390bc7fbdbfac2 (diff)
parentff277d4250fe715b6666219b1a3423b863418794 (diff)
downloadlinux-a1d8561172f369ba56d636df49a6b4d6d77e2123.tar.gz
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar: "The biggest change in this cycle is the rewrite of the main SMP load balancing metric: the CPU load/utilization. The main goal was to make the metric more precise and more representative - see the changelog of this commit for the gory details: 9d89c257dfb9 ("sched/fair: Rewrite runnable load and utilization average tracking") It is done in a way that significantly reduces complexity of the code: 5 files changed, 249 insertions(+), 494 deletions(-) and the performance testing results are encouraging. Nevertheless we need to keep an eye on potential regressions, since this potentially affects every SMP workload in existence. This work comes from Yuyang Du. Other changes: - SCHED_DL updates. (Andrea Parri) - Simplify architecture callbacks by removing finish_arch_switch(). (Peter Zijlstra et al) - cputime accounting: guarantee stime + utime == rtime. (Peter Zijlstra) - optimize idle CPU wakeups some more - inspired by Facebook server loads. (Mike Galbraith) - stop_machine fixes and updates. (Oleg Nesterov) - Introduce the 'trace_sched_waking' tracepoint. (Peter Zijlstra) - sched/numa tweaks. (Srikar Dronamraju) - misc fixes and small cleanups" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) sched/deadline: Fix comment in enqueue_task_dl() sched/deadline: Fix comment in push_dl_tasks() sched: Change the sched_class::set_cpus_allowed() calling context sched: Make sched_class::set_cpus_allowed() unconditional sched: Fix a race between __kthread_bind() and sched_setaffinity() sched: Ensure a task has a non-normalized vruntime when returning back to CFS sched/numa: Fix NUMA_DIRECT topology identification tile: Reorganize _switch_to() sched, sparc32: Update scheduler comments in copy_thread() sched: Remove finish_arch_switch() sched, tile: Remove finish_arch_switch sched, sh: Fold finish_arch_switch() into switch_to() sched, score: Remove finish_arch_switch() sched, avr32: Remove finish_arch_switch() sched, MIPS: Get rid of finish_arch_switch() sched, arm: Remove finish_arch_switch() sched/fair: Clean up load average references sched/fair: Provide runnable_load_avg back to cfs_rq sched/fair: Remove task and group entity load when they are dead sched/fair: Init cfs_rq's sched_entity load average ...
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/include/asm/switch_to.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/avr32/include/asm/switch_to.h b/arch/avr32/include/asm/switch_to.h
index 9a8e9d5208d4..6f00581c3d4f 100644
--- a/arch/avr32/include/asm/switch_to.h
+++ b/arch/avr32/include/asm/switch_to.h
@@ -15,11 +15,13 @@
*/
#ifdef CONFIG_OWNERSHIP_TRACE
#include <asm/ocd.h>
-#define finish_arch_switch(prev) \
+#define ocd_switch(prev, next) \
do { \
ocd_write(PID, prev->pid); \
- ocd_write(PID, current->pid); \
+ ocd_write(PID, next->pid); \
} while(0)
+#else
+#define ocd_switch(prev, next)
#endif
/*
@@ -38,6 +40,7 @@ extern struct task_struct *__switch_to(struct task_struct *,
struct cpu_context *);
#define switch_to(prev, next, last) \
do { \
+ ocd_switch(prev, next); \
last = __switch_to(prev, &prev->thread.cpu_context + 1, \
&next->thread.cpu_context); \
} while (0)