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| author | anish kumar <anish198519851985@gmail.com> | 2013-02-03 22:08:23 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-02-04 11:50:59 +0100 |
| commit | c02cf5f8ed6137e2b3b2f10e0fca336e06e09ba4 (patch) | |
| tree | 808036e5a89ace73ea2a92719529df6c6321977b /kernel/irq_work.c | |
| parent | 786133f6e8ff94aaa78cd6b7844d04c227098327 (diff) | |
| download | lwn-c02cf5f8ed6137e2b3b2f10e0fca336e06e09ba4.tar.gz lwn-c02cf5f8ed6137e2b3b2f10e0fca336e06e09ba4.zip | |
irq_work: Remove return value from the irq_work_queue() function
As no one is using the return value of irq_work_queue(),
so it is better to just make it void.
Signed-off-by: anish kumar <anish198519851985@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
[ Fix stale comments, remove now unnecessary __irq_work_queue() intermediate function ]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1359925703-24304-1-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/irq_work.c')
| -rw-r--r-- | kernel/irq_work.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 64eddd59ed83..c9d7478e4889 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -63,12 +63,20 @@ 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) { bool empty; + /* Only queue if not already pending */ + if (!irq_work_claim(work)) + return; + + /* Queue the entry and raise the IPI if needed. */ preempt_disable(); empty = llist_add(&work->llnode, &__get_cpu_var(irq_work_list)); @@ -78,25 +86,6 @@ 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); /* |