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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-31 22:35:31 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-31 22:35:31 +0200 |
| commit | f22e08a79f3765fecf060b225a46931c94fb0a92 (patch) | |
| tree | 2f02777e8893d03289ec0a7f5f414f3ff01c8c37 | |
| parent | Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
| parent | sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq() (diff) | |
| download | linux-f22e08a79f3765fecf060b225a46931c94fb0a92.tar.xz linux-f22e08a79f3765fecf060b225a46931c94fb0a92.zip | |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar.
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()
sched: Fix __schedule_bug() output when called from an interrupt
sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback
| -rw-r--r-- | kernel/sched/core.c | 13 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 3 |
2 files changed, 7 insertions, 9 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index e3ed0ecee7c7..4603b9d8f30a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1270,7 +1270,7 @@ static int select_fallback_rq(int cpu, struct task_struct *p) int dest_cpu; /* Look for allowed, online CPU in same node. */ - for_each_cpu_mask(dest_cpu, *nodemask) { + for_each_cpu(dest_cpu, nodemask) { if (!cpu_online(dest_cpu)) continue; if (!cpu_active(dest_cpu)) @@ -1281,7 +1281,7 @@ static int select_fallback_rq(int cpu, struct task_struct *p) for (;;) { /* Any allowed, online CPU? */ - for_each_cpu_mask(dest_cpu, *tsk_cpus_allowed(p)) { + for_each_cpu(dest_cpu, tsk_cpus_allowed(p)) { if (!cpu_online(dest_cpu)) continue; if (!cpu_active(dest_cpu)) @@ -1964,6 +1964,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev) local_irq_enable(); #endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */ finish_lock_switch(rq, prev); + finish_arch_post_lock_switch(); fire_sched_in_preempt_notifiers(current); if (mm) @@ -3101,8 +3102,6 @@ EXPORT_SYMBOL(sub_preempt_count); */ static noinline void __schedule_bug(struct task_struct *prev) { - struct pt_regs *regs = get_irq_regs(); - if (oops_in_progress) return; @@ -3113,11 +3112,7 @@ static noinline void __schedule_bug(struct task_struct *prev) print_modules(); if (irqs_disabled()) print_irqtrace_events(prev); - - if (regs) - show_regs(regs); - else - dump_stack(); + dump_stack(); } /* diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 42b1f304b044..fb3acba4d52e 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -681,6 +681,9 @@ static inline int task_running(struct rq *rq, struct task_struct *p) #ifndef finish_arch_switch # define finish_arch_switch(prev) do { } while (0) #endif +#ifndef finish_arch_post_lock_switch +# define finish_arch_post_lock_switch() do { } while (0) +#endif #ifndef __ARCH_WANT_UNLOCKED_CTXSW static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) |