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authorIngo Molnar <mingo@kernel.org>2012-07-31 17:05:27 +0200
committerIngo Molnar <mingo@kernel.org>2012-07-31 17:05:27 +0200
commit1f815faec46e83bc96039797151846b60875bb06 (patch)
tree41a874f8090e3f69c8a9f13e3c85dd7a371e569b /arch/x86/kernel/apic/apic.c
parentb44d50dcacea0d485ca2ff9140f8cc28ee22f28d (diff)
parente2b34e311be3a57c9abcb927e37a57e38913714c (diff)
Merge branch 'linus' into timers/urgent
Merge in Linus's branch which already has timers/core merged. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
-rw-r--r--arch/x86/kernel/apic/apic.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 39a222e094af..c421512ca5eb 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2123,6 +2123,25 @@ void default_init_apic_ldr(void)
apic_write(APIC_LDR, val);
}
+int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+ const struct cpumask *andmask,
+ unsigned int *apicid)
+{
+ unsigned int cpu;
+
+ for_each_cpu_and(cpu, cpumask, andmask) {
+ if (cpumask_test_cpu(cpu, cpu_online_mask))
+ break;
+ }
+
+ if (likely(cpu < nr_cpu_ids)) {
+ *apicid = per_cpu(x86_cpu_to_apicid, cpu);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
/*
* Power management
*/