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authorJens Axboe <jaxboe@fusionio.com>2011-04-12 10:12:19 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-04-12 10:12:19 +0200
commit94b5eb28b41cc79d9713696e0005ae167b5afd1b (patch)
tree404680c86a360bfe623b5a287ee87dd5263b5a8e /include/trace/events/block.h
parentd9c97833179036408e53ef5f3f5c7eaf781769bc (diff)
downloadvexpress-lsk-94b5eb28b41cc79d9713696e0005ae167b5afd1b.tar.gz
block: fixup block IO unplug trace call
It was removed with the on-stack plugging, readd it and track the depth of requests added when flushing the plug. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'include/trace/events/block.h')
-rw-r--r--include/trace/events/block.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 43a985390bb..006e60b5830 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -401,9 +401,9 @@ TRACE_EVENT(block_plug,
DECLARE_EVENT_CLASS(block_unplug,
- TP_PROTO(struct request_queue *q),
+ TP_PROTO(struct request_queue *q, unsigned int depth),
- TP_ARGS(q),
+ TP_ARGS(q, depth),
TP_STRUCT__entry(
__field( int, nr_rq )
@@ -411,7 +411,7 @@ DECLARE_EVENT_CLASS(block_unplug,
),
TP_fast_assign(
- __entry->nr_rq = q->rq.count[READ] + q->rq.count[WRITE];
+ __entry->nr_rq = depth;
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
@@ -421,15 +421,16 @@ DECLARE_EVENT_CLASS(block_unplug,
/**
* block_unplug_io - release of operations requests in request queue
* @q: request queue to unplug
+ * @depth: number of requests just added to the queue
*
* Unplug request queue @q because device driver is scheduled to work
* on elements in the request queue.
*/
DEFINE_EVENT(block_unplug, block_unplug_io,
- TP_PROTO(struct request_queue *q),
+ TP_PROTO(struct request_queue *q, unsigned int depth),
- TP_ARGS(q)
+ TP_ARGS(q, depth)
);
/**