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authorRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:26 +1030
committerRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:26 +1030
commitd036e67b40f52bdd95392390108defbac7e53837 (patch)
tree4a00537671036c955c98891af9f4729332b35c50 /kernel/irq/manage.c
parent6b954823c24f04ed026a8517f6bab5abda279db8 (diff)
cpumask: convert kernel/irq
Impact: Reduce stack usage, use new cpumask API. ALPHA mod! Main change is that irq_default_affinity becomes a cpumask_var_t, so treat it as a pointer (this effects alpha). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/irq/manage.c')
-rw-r--r--kernel/irq/manage.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 61c4a9b62165..cd0cd8dcb345 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -16,8 +16,15 @@
#include "internals.h"
#ifdef CONFIG_SMP
+cpumask_var_t irq_default_affinity;
-cpumask_t irq_default_affinity = CPU_MASK_ALL;
+static int init_irq_default_affinity(void)
+{
+ alloc_cpumask_var(&irq_default_affinity, GFP_KERNEL);
+ cpumask_setall(irq_default_affinity);
+ return 0;
+}
+core_initcall(init_irq_default_affinity);
/**
* synchronize_irq - wait for pending IRQ handlers (on other CPUs)
@@ -127,7 +134,7 @@ int do_irq_select_affinity(unsigned int irq, struct irq_desc *desc)
desc->status &= ~IRQ_AFFINITY_SET;
}
- cpumask_and(&desc->affinity, cpu_online_mask, &irq_default_affinity);
+ cpumask_and(&desc->affinity, cpu_online_mask, irq_default_affinity);
set_affinity:
desc->chip->set_affinity(irq, &desc->affinity);