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-rw-r--r--include/linux/irq.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 974890b3c52..b7cbeed972e 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -22,6 +22,7 @@
#include <linux/irqnr.h>
#include <linux/errno.h>
#include <linux/topology.h>
+#include <linux/wait.h>
#include <asm/irq.h>
#include <asm/ptrace.h>
@@ -158,6 +159,8 @@ struct irq_2_iommu;
* @affinity: IRQ affinity on SMP
* @cpu: cpu index useful for balancing
* @pending_mask: pending rebalanced interrupts
+ * @threads_active: number of irqaction threads currently running
+ * @wait_for_threads: wait queue for sync_irq to wait for threaded handlers
* @dir: /proc/irq/ procfs entry
* @name: flow handler name for /proc/interrupts output
*/
@@ -189,6 +192,8 @@ struct irq_desc {
cpumask_var_t pending_mask;
#endif
#endif
+ atomic_t threads_active;
+ wait_queue_head_t wait_for_threads;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *dir;
#endif
@@ -482,6 +487,16 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
#endif
}
+static inline void free_desc_masks(struct irq_desc *old_desc,
+ struct irq_desc *new_desc)
+{
+ free_cpumask_var(old_desc->affinity);
+
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+ free_cpumask_var(old_desc->pending_mask);
+#endif
+}
+
#else /* !CONFIG_SMP */
static inline bool init_alloc_desc_masks(struct irq_desc *desc, int cpu,
@@ -495,6 +510,10 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
{
}
+static inline void free_desc_masks(struct irq_desc *old_desc,
+ struct irq_desc *new_desc)
+{
+}
#endif /* CONFIG_SMP */
#endif /* _LINUX_IRQ_H */