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ARM: Fix negative idle stats for offline cpu

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We see negative idle stats because of cpu dying without
cleaning up idle entry statistics. When a cpu is offline,
the most immediate thing you'd want to do is just call
into cpu_die() and not waste time calling notifier(IDLE_START).

CRs-Fixed: 414554
Change-Id: Iadc6a3ca39997e0ccf65d2a29b004e24b1b211a1
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
This commit is contained in:
Taniya Das 2012-10-30 15:28:20 +05:30 committed by Stephen Boyd
parent d4790cc1b3
commit 6ee21d2c5c
1 changed files with 3 additions and 3 deletions
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6
kernel/cpu/idle.c
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@ -74,9 +74,6 @@ static void cpu_idle_loop(void)
check_pgt_cache();
rmb();
if (cpu_is_offline(smp_processor_id()))
arch_cpu_idle_dead();
local_irq_disable();
arch_cpu_idle_enter();
@ -109,6 +106,9 @@ static void cpu_idle_loop(void)
}
tick_nohz_idle_exit();
schedule_preempt_disabled();
if (cpu_is_offline(smp_processor_id()))
arch_cpu_idle_dead();
}
}