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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:35:07 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 16:35:07 -0400
commit92b29b86fe2e183d44eb467e5e74a5f718ef2e43 (patch)
tree1bac8a1aa11d47322b66d10ec3a370016d843d06 /kernel/sched.c
parentb9d7ccf56be1ac77b71a284a1c0e6337f9a7aff0 (diff)
parent98d9c66ab07471006fd7910cb16453581c41a3e7 (diff)
Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (131 commits) tracing/fastboot: improve help text tracing/stacktrace: improve help text tracing/fastboot: fix initcalls disposition in bootgraph.pl tracing/fastboot: fix bootgraph.pl initcall name regexp tracing/fastboot: fix issues and improve output of bootgraph.pl tracepoints: synchronize unregister static inline tracepoints: tracepoint_synchronize_unregister() ftrace: make ftrace_test_p6nop disassembler-friendly markers: fix synchronize marker unregister static inline tracing/fastboot: add better resolution to initcall debug/tracing trace: add build-time check to avoid overrunning hex buffer ftrace: fix hex output mode of ftrace tracing/fastboot: fix initcalls disposition in bootgraph.pl tracing/fastboot: fix printk format typo in boot tracer ftrace: return an error when setting a nonexistent tracer ftrace: make some tracers reentrant ring-buffer: make reentrant ring-buffer: move page indexes into page headers tracing/fastboot: only trace non-module initcalls ftrace: move pc counter in irqtrace ... Manually fix conflicts: - init/main.c: initcall tracing - kernel/module.c: verbose level vs tracepoints - scripts/bootgraph.pl: fallout from cherry-picking commits.
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 09a8c15748f1..d906f72b42d2 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -71,6 +71,7 @@
71#include <linux/debugfs.h> 71#include <linux/debugfs.h>
72#include <linux/ctype.h> 72#include <linux/ctype.h>
73#include <linux/ftrace.h> 73#include <linux/ftrace.h>
74#include <trace/sched.h>
74 75
75#include <asm/tlb.h> 76#include <asm/tlb.h>
76#include <asm/irq_regs.h> 77#include <asm/irq_regs.h>
@@ -1936,6 +1937,7 @@ unsigned long wait_task_inactive(struct task_struct *p, long match_state)
1936 * just go back and repeat. 1937 * just go back and repeat.
1937 */ 1938 */
1938 rq = task_rq_lock(p, &flags); 1939 rq = task_rq_lock(p, &flags);
1940 trace_sched_wait_task(rq, p);
1939 running = task_running(rq, p); 1941 running = task_running(rq, p);
1940 on_rq = p->se.on_rq; 1942 on_rq = p->se.on_rq;
1941 ncsw = 0; 1943 ncsw = 0;
@@ -2297,9 +2299,7 @@ out_activate:
2297 success = 1; 2299 success = 1;
2298 2300
2299out_running: 2301out_running:
2300 trace_mark(kernel_sched_wakeup, 2302 trace_sched_wakeup(rq, p);
2301 "pid %d state %ld ## rq %p task %p rq->curr %p",
2302 p->pid, p->state, rq, p, rq->curr);
2303 check_preempt_curr(rq, p, sync); 2303 check_preempt_curr(rq, p, sync);
2304 2304
2305 p->state = TASK_RUNNING; 2305 p->state = TASK_RUNNING;
@@ -2432,9 +2432,7 @@ void wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
2432 p->sched_class->task_new(rq, p); 2432 p->sched_class->task_new(rq, p);
2433 inc_nr_running(rq); 2433 inc_nr_running(rq);
2434 } 2434 }
2435 trace_mark(kernel_sched_wakeup_new, 2435 trace_sched_wakeup_new(rq, p);
2436 "pid %d state %ld ## rq %p task %p rq->curr %p",
2437 p->pid, p->state, rq, p, rq->curr);
2438 check_preempt_curr(rq, p, 0); 2436 check_preempt_curr(rq, p, 0);
2439#ifdef CONFIG_SMP 2437#ifdef CONFIG_SMP
2440 if (p->sched_class->task_wake_up) 2438 if (p->sched_class->task_wake_up)
@@ -2607,11 +2605,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
2607 struct mm_struct *mm, *oldmm; 2605 struct mm_struct *mm, *oldmm;
2608 2606
2609 prepare_task_switch(rq, prev, next); 2607 prepare_task_switch(rq, prev, next);
2610 trace_mark(kernel_sched_schedule, 2608 trace_sched_switch(rq, prev, next);
2611 "prev_pid %d next_pid %d prev_state %ld "
2612 "## rq %p prev %p next %p",
2613 prev->pid, next->pid, prev->state,
2614 rq, prev, next);
2615 mm = next->mm; 2609 mm = next->mm;
2616 oldmm = prev->active_mm; 2610 oldmm = prev->active_mm;
2617 /* 2611 /*
@@ -2851,6 +2845,7 @@ static void sched_migrate_task(struct task_struct *p, int dest_cpu)
2851 || unlikely(!cpu_active(dest_cpu))) 2845 || unlikely(!cpu_active(dest_cpu)))
2852 goto out; 2846 goto out;
2853 2847
2848 trace_sched_migrate_task(rq, p, dest_cpu);
2854 /* force the process onto the specified CPU */ 2849 /* force the process onto the specified CPU */
2855 if (migrate_task(p, dest_cpu, &req)) { 2850 if (migrate_task(p, dest_cpu, &req)) {
2856 /* Need to wait for migration thread (might exit: take ref). */ 2851 /* Need to wait for migration thread (might exit: take ref). */