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| author | David Daney <ddaney@caviumnetworks.com> | 2011-03-25 12:38:50 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-03-27 17:45:59 +0200 |
| commit | c2d0c555c22242c3a76e366074c4d83ef9fa3b8c (patch) | |
| tree | 7426945b566129163639229fa0a5f420cdce13a8 /include/linux/irq.h | |
| parent | b3d422329f2e061d66af4f933ef316e50e5edcac (diff) | |
| download | lwn-c2d0c555c22242c3a76e366074c4d83ef9fa3b8c.tar.gz lwn-c2d0c555c22242c3a76e366074c4d83ef9fa3b8c.zip | |
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.h | 1 |
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 |