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authorDavid Daney <ddaney@caviumnetworks.com>2011-03-25 22:38:50 +0300
committerThomas Gleixner <tglx@linutronix.de>2011-03-27 19:45:59 +0400
commitc2d0c555c22242c3a76e366074c4d83ef9fa3b8c (patch)
tree7426945b566129163639229fa0a5f420cdce13a8 /include/linux/irq.h
parentb3d422329f2e061d66af4f933ef316e50e5edcac (diff)
downloadlinux-c2d0c555c22242c3a76e366074c4d83ef9fa3b8c.tar.xz
genirq: Split irq_set_affinity() so it can be called with lock held.
The .irq_cpu_online() and .irq_cpu_offline() functions may need to adjust affinity, but they are called with the descriptor lock held. Create __irq_set_affinity_locked() which is called with the lock held. Make irq_set_affinity() just a wrapper that acquires the lock. [ tglx: Changed the argument to irq_data, added a !desc check and moved the !irq_set_affinity check where it belongs ] Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org LKML-Reference: <1301081931-11240-4-git-send-email-ddaney@caviumnetworks.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 76e948fa88f8..a10717e1c1f3 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -382,6 +382,7 @@ extern void remove_irq(unsigned int irq, struct irqaction *act);
extern void irq_cpu_online(void);
extern void irq_cpu_offline(void);
+extern int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *cpumask);
#ifdef CONFIG_GENERIC_HARDIRQS