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[PATCH] x86_64: Use for_each_cpu_mask for clustered IPI flush

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Makes it slightly more efficient.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2005-07-28 21:15:25 -07:00 committed by Linus Torvalds
parent acc7b6f01c
commit 74f0629397
1 changed files with 18 additions and 21 deletions
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39
include/asm-x86_64/ipi.h
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@ -82,30 +82,27 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector)
*/
local_irq_save(flags);
for (query_cpu = 0; query_cpu < NR_CPUS; ++query_cpu) {
if (cpu_isset(query_cpu, mask)) {
for_each_cpu_mask(query_cpu, mask) {
/*
* Wait for idle.
*/
apic_wait_icr_idle();
/*
* Wait for idle.
*/
apic_wait_icr_idle();
/*
* prepare target chip field
*/
cfg = __prepare_ICR2(x86_cpu_to_apicid[query_cpu]);
apic_write_around(APIC_ICR2, cfg);
/*
* prepare target chip field
*/
cfg = __prepare_ICR2(x86_cpu_to_apicid[query_cpu]);
apic_write_around(APIC_ICR2, cfg);
/*
* program the ICR
*/
cfg = __prepare_ICR(0, vector, APIC_DEST_PHYSICAL);
/*
* program the ICR
*/
cfg = __prepare_ICR(0, vector, APIC_DEST_PHYSICAL);
/*
* Send the IPI. The write to APIC_ICR fires this off.
*/
apic_write_around(APIC_ICR, cfg);
}
/*
* Send the IPI. The write to APIC_ICR fires this off.
*/
apic_write_around(APIC_ICR, cfg);
}
local_irq_restore(flags);
}