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-rw-r--r--kernel/irq_work.c31
1 files changed, 10 insertions, 21 deletions
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 7f3a59bc8e3..55fcce6065c 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -56,10 +56,18 @@ void __weak arch_irq_work_raise(void)
}
/*
- * Queue the entry and raise the IPI if needed.
+ * Enqueue the irq_work @entry unless it's already pending
+ * somewhere.
+ *
+ * Can be re-enqueued while the callback is still in progress.
*/
-static void __irq_work_queue(struct irq_work *work)
+void irq_work_queue(struct irq_work *work)
{
+ /* Only queue if not already pending */
+ if (!irq_work_claim(work))
+ return;
+
+ /* Queue the entry and raise the IPI if needed. */
preempt_disable();
llist_add(&work->llnode, &__get_cpu_var(irq_work_list));
@@ -76,25 +84,6 @@ static void __irq_work_queue(struct irq_work *work)
preempt_enable();
}
-
-/*
- * Enqueue the irq_work @entry, returns true on success, failure when the
- * @entry was already enqueued by someone else.
- *
- * Can be re-enqueued while the callback is still in progress.
- */
-bool irq_work_queue(struct irq_work *work)
-{
- if (!irq_work_claim(work)) {
- /*
- * Already enqueued, can't do!
- */
- return false;
- }
-
- __irq_work_queue(work);
- return true;
-}
EXPORT_SYMBOL_GPL(irq_work_queue);
bool irq_work_needs_cpu(void)