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x86: Use this_cpu_ops to optimize code

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Go through x86 code and replace __get_cpu_var and get_cpu_var
instances that refer to a scalar and are not used for address
determinations.

Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo
2010-12-18 16:28:55 +01:00
parent 7c83912062
commit 0a3aee0da4
16 changed files with 57 additions and 62 deletions
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4
arch/x86/kernel/apic/io_apic.c
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@@ -2302,7 +2302,7 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void)
unsigned int irr;
struct irq_desc *desc;
struct irq_cfg *cfg;
irq = __get_cpu_var(vector_irq)[vector];
irq = __this_cpu_read(vector_irq[vector]);
if (irq == -1)
continue;
@@ -2336,7 +2336,7 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void)
apic->send_IPI_self(IRQ_MOVE_CLEANUP_VECTOR);
goto unlock;
}
__get_cpu_var(vector_irq)[vector] = -1;
__this_cpu_write(vector_irq[vector], -1);
unlock:
raw_spin_unlock(&desc->lock);
}