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Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched

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* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
  sched: proper prototype for kernel/sched.c:migration_init()
  sched: avoid large irq-latencies in smp-balancing
  sched: fix copy_namespace() <-> sched_fork() dependency in do_fork
  sched: clean up the wakeup preempt check, #2
  sched: clean up the wakeup preempt check
  sched: wakeup preemption fix
  sched: remove PREEMPT_RESTRICT
  sched: turn off PREEMPT_RESTRICT
  KVM: fix !SMP build error
  x86: make nmi_cpu_busy() always defined
  x86: make ipi_handler() always defined
  sched: cleanup, use NSEC_PER_MSEC and NSEC_PER_SEC
  sched: reintroduce SMP tunings again
  sched: restore deterministic CPU accounting on powerpc
  sched: fix delay accounting regression
  sched: reintroduce the sched_min_granularity tunable
  sched: documentation: place_entity() comments
  sched: fix vslice
This commit is contained in:
Linus Torvalds
2007-11-09 15:27:54 -08:00
parent a80b824f0b e6fe6649b4
commit a70a932299
16 changed files with 173 additions and 124 deletions
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arch/powerpc/kernel/process.c
+1 -1
View File
@@ -350,7 +350,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
local_irq_save(flags);
account_system_vtime(current);
account_process_vtime(current);
account_process_tick(current, 0);
calculate_steal_time();
last = _switch(old_thread, new_thread);
arch/powerpc/kernel/time.c
+1 -24
View File
@@ -259,7 +259,7 @@ void account_system_vtime(struct task_struct *tsk)
* user and system time records.
* Must be called with interrupts disabled.
*/
void account_process_vtime(struct task_struct *tsk)
void account_process_tick(struct task_struct *tsk, int user_tick)
{
cputime_t utime, utimescaled;
@@ -274,18 +274,6 @@ void account_process_vtime(struct task_struct *tsk)
account_user_time_scaled(tsk, utimescaled);
}
static void account_process_time(struct pt_regs *regs)
{
int cpu = smp_processor_id();
account_process_vtime(current);
run_local_timers();
if (rcu_pending(cpu))
rcu_check_callbacks(cpu, user_mode(regs));
scheduler_tick();
run_posix_cpu_timers(current);
}
/*
* Stuff for accounting stolen time.
*/
@@ -375,7 +363,6 @@ static void snapshot_purr(void)
#else /* ! CONFIG_VIRT_CPU_ACCOUNTING */
#define calc_cputime_factors()
#define account_process_time(regs) update_process_times(user_mode(regs))
#define calculate_steal_time() do { } while (0)
#endif
@@ -599,16 +586,6 @@ void timer_interrupt(struct pt_regs * regs)
get_lppaca()->int_dword.fields.decr_int = 0;
#endif
/*
* We cannot disable the decrementer, so in the period
* between this cpu's being marked offline in cpu_online_map
* and calling stop-self, it is taking timer interrupts.
* Avoid calling into the scheduler rebalancing code if this
* is the case.
*/
if (!cpu_is_offline(cpu))
account_process_time(regs);
if (evt->event_handler)
evt->event_handler(evt);