block: remove the unused block_sleeprq tracepoint (b81b8f40) · Commits · 戴 / test

include/trace/events/block.h

+0 −18

Original line number	Diff line number	Diff line
		@@ -441,24 +441,6 @@ DEFINE_EVENT(block_get_rq, block_getrq,
		TP_ARGS(q, bio, rw)
		);

		/**
		* block_sleeprq - waiting to get a free request entry in queue for block IO operation
		* @q: queue for operation
		* @bio: pending block IO operation (can be %NULL)
		* @rw: low bit indicates a read (%0) or a write (%1)
		*
		* In the case where a request struct cannot be provided for queue @q
		* the process needs to wait for an request struct to become
		* available. This tracepoint event is generated each time the
		* process goes to sleep waiting for request struct become available.
		*/
		DEFINE_EVENT(block_get_rq, block_sleeprq,

		TP_PROTO(struct request_queue q, struct bio bio, int rw),

		TP_ARGS(q, bio, rw)
		);

		/**
		* block_plug - keep operations requests in request queue
		* @q: request queue to plug

+0 −22

Original line number	Diff line number	Diff line
		@@ -959,25 +959,6 @@ static void blk_add_trace_getrq(void *ignore,
		}
		}


		static void blk_add_trace_sleeprq(void *ignore,
		struct request_queue *q,
		struct bio *bio, int rw)
		{
		if (bio)
		blk_add_trace_bio(q, bio, BLK_TA_SLEEPRQ, 0);
		else {
		struct blk_trace *bt;

		rcu_read_lock();
		bt = rcu_dereference(q->blk_trace);
		if (bt)
		__blk_add_trace(bt, 0, 0, rw, 0, BLK_TA_SLEEPRQ,
		0, 0, NULL, 0);
		rcu_read_unlock();
		}
		}

		static void blk_add_trace_plug(void ignore, struct request_queue q)
		{
		struct blk_trace *bt;
		@@ -1164,8 +1145,6 @@ static void blk_register_tracepoints(void)
		WARN_ON(ret);
		ret = register_trace_block_getrq(blk_add_trace_getrq, NULL);
		WARN_ON(ret);
		ret = register_trace_block_sleeprq(blk_add_trace_sleeprq, NULL);
		WARN_ON(ret);
		ret = register_trace_block_plug(blk_add_trace_plug, NULL);
		WARN_ON(ret);
		ret = register_trace_block_unplug(blk_add_trace_unplug, NULL);
		@@ -1185,7 +1164,6 @@ static void blk_unregister_tracepoints(void)
		unregister_trace_block_split(blk_add_trace_split, NULL);
		unregister_trace_block_unplug(blk_add_trace_unplug, NULL);
		unregister_trace_block_plug(blk_add_trace_plug, NULL);
		unregister_trace_block_sleeprq(blk_add_trace_sleeprq, NULL);
		unregister_trace_block_getrq(blk_add_trace_getrq, NULL);
		unregister_trace_block_bio_queue(blk_add_trace_bio_queue, NULL);
		unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL);