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| author | Jens Axboe <jaxboe@fusionio.com> | 2011-04-12 10:12:19 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-04-12 10:12:19 +0200 |
| commit | 94b5eb28b41cc79d9713696e0005ae167b5afd1b (patch) | |
| tree | 404680c86a360bfe623b5a287ee87dd5263b5a8e /include/trace | |
| parent | d9c97833179036408e53ef5f3f5c7eaf781769bc (diff) | |
| download | lwn-94b5eb28b41cc79d9713696e0005ae167b5afd1b.tar.gz lwn-94b5eb28b41cc79d9713696e0005ae167b5afd1b.zip | |
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')
| -rw-r--r-- | include/trace/events/block.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/include/trace/events/block.h b/include/trace/events/block.h index 43a985390bb6..006e60b58306 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) ); /** |