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authorDavid S. Miller <davem@davemloft.net>2014-05-12 13:19:14 -0400
committerDavid S. Miller <davem@davemloft.net>2014-05-12 13:19:14 -0400
commit5f013c9bc70214dcacd5fbed5a06c217d6ff9c59 (patch)
tree34c3a633000e03bca57d0ce55d8759f86edecc03 /include/linux/interrupt.h
parent51ee42efa0829cf9e46f8e1c0ab7a9ab6facf3f2 (diff)
parent1a466ae96e9f749d02a73315a3e66375e61a61dd (diff)
downloadop-kernel-dev-5f013c9bc70214dcacd5fbed5a06c217d6ff9c59.zip
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/altera/altera_sgdma.c net/netlink/af_netlink.c net/sched/cls_api.c net/sched/sch_api.c The netlink conflict dealt with moving to netlink_capable() and netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations in non-init namespaces. These were simple transformations from netlink_capable to netlink_ns_capable. The Altera driver conflict was simply code removal overlapping some void pointer cast cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h35
1 files changed, 34 insertions, 1 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index c7bfac1..97ac926 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -203,7 +203,40 @@ static inline int check_wakeup_irqs(void) { return 0; }
extern cpumask_var_t irq_default_affinity;
-extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask);
+/* Internal implementation. Use the helpers below */
+extern int __irq_set_affinity(unsigned int irq, const struct cpumask *cpumask,
+ bool force);
+
+/**
+ * irq_set_affinity - Set the irq affinity of a given irq
+ * @irq: Interrupt to set affinity
+ * @cpumask: cpumask
+ *
+ * Fails if cpumask does not contain an online CPU
+ */
+static inline int
+irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+ return __irq_set_affinity(irq, cpumask, false);
+}
+
+/**
+ * irq_force_affinity - Force the irq affinity of a given irq
+ * @irq: Interrupt to set affinity
+ * @cpumask: cpumask
+ *
+ * Same as irq_set_affinity, but without checking the mask against
+ * online cpus.
+ *
+ * Solely for low level cpu hotplug code, where we need to make per
+ * cpu interrupts affine before the cpu becomes online.
+ */
+static inline int
+irq_force_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+ return __irq_set_affinity(irq, cpumask, true);
+}
+
extern int irq_can_set_affinity(unsigned int irq);
extern int irq_select_affinity(unsigned int irq);
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