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authorCyrill Gorcunov <gorcunov@gmail.com>2008-11-10 09:16:40 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-10 09:16:40 +0100
commit4e0304310f5180eee11b4edc72cf4cb78acdc634 (patch)
treece01e1d5e32cd4dea916d05392e98b14d6e8e780
parent4ecd33d930591d41fe356160593a9076467b961c (diff)
x86: apic - calibrate_APIC_clock remove redundant irq-enable-disable
Impact: cleanup lapic_timer_setup is self-protected with local_irq_save/restore no need to use them in caller and levt is the per-cpu variable so no concurrent access from another cpu. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Acked-by: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/apic.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 04a7f960bbc..ce90dc18413 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -672,13 +672,9 @@ static int __init calibrate_APIC_clock(void)
while (lapic_cal_loops <= LAPIC_CAL_LOOPS)
cpu_relax();
- local_irq_disable();
-
/* Stop the lapic timer */
lapic_timer_setup(CLOCK_EVT_MODE_SHUTDOWN, levt);
- local_irq_enable();
-
/* Jiffies delta */
deltaj = lapic_cal_j2 - lapic_cal_j1;
apic_printk(APIC_VERBOSE, "... jiffies delta = %lu\n", deltaj);