Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 4/5] vtime: No need to disable irqs on vtime_account() | Date | Tue, 20 Nov 2012 16:42:40 +0100 |
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vtime_account() is only called from irq entry. irqs are always disabled at this point so we can safely remove the irq disabling guards on that function.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> --- kernel/sched/cputime.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-)
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 2e8d34a..80b2fd5 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -467,16 +467,10 @@ void vtime_task_switch(struct task_struct *prev) #ifndef __ARCH_HAS_VTIME_ACCOUNT void vtime_account(struct task_struct *tsk) { - unsigned long flags; - - local_irq_save(flags); - if (in_interrupt() || !is_idle_task(tsk)) vtime_account_system(tsk); else vtime_account_idle(tsk); - - local_irq_restore(flags); } EXPORT_SYMBOL_GPL(vtime_account); #endif /* __ARCH_HAS_VTIME_ACCOUNT */ -- 1.7.5.4
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