tracing: Convert some block events to DEFINE_EVENT
use DECLARE_EVENT_CLASS to remove duplicate code:
text data bss dec hex filename
53570 3284 184 57038 dece block/blk-core.o.old
43702 3284 144 47130 b81a block/blk-core.o
12 events are converted:
block_rq: block_rq_insert, block_rq_issue
block_rq_with_error: block_rq_{abort, requeue, complete}
block_bio: block_bio_{backmerge, frontmerge, queue}
block_get_rq: block_getrq, block_sleeprq
block_unplug: block_unplug_timer, block_unplug_io
No change in functionality.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0E28E6.7060609@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 00405b5..5fb7273 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -8,7 +8,7 @@
#include <linux/blkdev.h>
#include <linux/tracepoint.h>
-TRACE_EVENT(block_rq_abort,
+DECLARE_EVENT_CLASS(block_rq_with_error,
TP_PROTO(struct request_queue *q, struct request *rq),
@@ -40,7 +40,28 @@
__entry->nr_sector, __entry->errors)
);
-TRACE_EVENT(block_rq_insert,
+DEFINE_EVENT(block_rq_with_error, block_rq_abort,
+
+ TP_PROTO(struct request_queue *q, struct request *rq),
+
+ TP_ARGS(q, rq)
+);
+
+DEFINE_EVENT(block_rq_with_error, block_rq_requeue,
+
+ TP_PROTO(struct request_queue *q, struct request *rq),
+
+ TP_ARGS(q, rq)
+);
+
+DEFINE_EVENT(block_rq_with_error, block_rq_complete,
+
+ TP_PROTO(struct request_queue *q, struct request *rq),
+
+ TP_ARGS(q, rq)
+);
+
+DECLARE_EVENT_CLASS(block_rq,
TP_PROTO(struct request_queue *q, struct request *rq),
@@ -74,102 +95,18 @@
__entry->nr_sector, __entry->comm)
);
-TRACE_EVENT(block_rq_issue,
+DEFINE_EVENT(block_rq, block_rq_insert,
TP_PROTO(struct request_queue *q, struct request *rq),
- TP_ARGS(q, rq),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __field( unsigned int, bytes )
- __array( char, rwbs, 6 )
- __array( char, comm, TASK_COMM_LEN )
- __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
- ),
-
- TP_fast_assign(
- __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
- __entry->sector = blk_pc_request(rq) ? 0 : blk_rq_pos(rq);
- __entry->nr_sector = blk_pc_request(rq) ? 0 : blk_rq_sectors(rq);
- __entry->bytes = blk_pc_request(rq) ? blk_rq_bytes(rq) : 0;
-
- blk_fill_rwbs_rq(__entry->rwbs, rq);
- blk_dump_cmd(__get_str(cmd), rq);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
-
- TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs, __entry->bytes, __get_str(cmd),
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ TP_ARGS(q, rq)
);
-TRACE_EVENT(block_rq_requeue,
+DEFINE_EVENT(block_rq, block_rq_issue,
TP_PROTO(struct request_queue *q, struct request *rq),
- TP_ARGS(q, rq),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __field( int, errors )
- __array( char, rwbs, 6 )
- __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
- ),
-
- TP_fast_assign(
- __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
- __entry->sector = blk_pc_request(rq) ? 0 : blk_rq_pos(rq);
- __entry->nr_sector = blk_pc_request(rq) ? 0 : blk_rq_sectors(rq);
- __entry->errors = rq->errors;
-
- blk_fill_rwbs_rq(__entry->rwbs, rq);
- blk_dump_cmd(__get_str(cmd), rq);
- ),
-
- TP_printk("%d,%d %s (%s) %llu + %u [%d]",
- MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs, __get_str(cmd),
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->errors)
-);
-
-TRACE_EVENT(block_rq_complete,
-
- TP_PROTO(struct request_queue *q, struct request *rq),
-
- TP_ARGS(q, rq),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __field( int, errors )
- __array( char, rwbs, 6 )
- __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
- ),
-
- TP_fast_assign(
- __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
- __entry->sector = blk_pc_request(rq) ? 0 : blk_rq_pos(rq);
- __entry->nr_sector = blk_pc_request(rq) ? 0 : blk_rq_sectors(rq);
- __entry->errors = rq->errors;
-
- blk_fill_rwbs_rq(__entry->rwbs, rq);
- blk_dump_cmd(__get_str(cmd), rq);
- ),
-
- TP_printk("%d,%d %s (%s) %llu + %u [%d]",
- MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs, __get_str(cmd),
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->errors)
+ TP_ARGS(q, rq)
);
TRACE_EVENT(block_bio_bounce,
@@ -228,7 +165,7 @@
__entry->nr_sector, __entry->error)
);
-TRACE_EVENT(block_bio_backmerge,
+DECLARE_EVENT_CLASS(block_bio,
TP_PROTO(struct request_queue *q, struct bio *bio),
@@ -256,63 +193,28 @@
__entry->nr_sector, __entry->comm)
);
-TRACE_EVENT(block_bio_frontmerge,
+DEFINE_EVENT(block_bio, block_bio_backmerge,
TP_PROTO(struct request_queue *q, struct bio *bio),
- TP_ARGS(q, bio),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned, nr_sector )
- __array( char, rwbs, 6 )
- __array( char, comm, TASK_COMM_LEN )
- ),
-
- TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
-
- TP_printk("%d,%d %s %llu + %u [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ TP_ARGS(q, bio)
);
-TRACE_EVENT(block_bio_queue,
+DEFINE_EVENT(block_bio, block_bio_frontmerge,
TP_PROTO(struct request_queue *q, struct bio *bio),
- TP_ARGS(q, bio),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __array( char, rwbs, 6 )
- __array( char, comm, TASK_COMM_LEN )
- ),
-
- TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
-
- TP_printk("%d,%d %s %llu + %u [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ TP_ARGS(q, bio)
);
-TRACE_EVENT(block_getrq,
+DEFINE_EVENT(block_bio, block_bio_queue,
+
+ TP_PROTO(struct request_queue *q, struct bio *bio),
+
+ TP_ARGS(q, bio)
+);
+
+DECLARE_EVENT_CLASS(block_get_rq,
TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
@@ -341,33 +243,18 @@
__entry->nr_sector, __entry->comm)
);
-TRACE_EVENT(block_sleeprq,
+DEFINE_EVENT(block_get_rq, block_getrq,
TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
- TP_ARGS(q, bio, rw),
+ TP_ARGS(q, bio, rw)
+);
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __array( char, rwbs, 6 )
- __array( char, comm, TASK_COMM_LEN )
- ),
+DEFINE_EVENT(block_get_rq, block_sleeprq,
- TP_fast_assign(
- __entry->dev = bio ? bio->bi_bdev->bd_dev : 0;
- __entry->sector = bio ? bio->bi_sector : 0;
- __entry->nr_sector = bio ? bio->bi_size >> 9 : 0;
- blk_fill_rwbs(__entry->rwbs,
- bio ? bio->bi_rw : 0, __entry->nr_sector);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
+ TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
- TP_printk("%d,%d %s %llu + %u [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ TP_ARGS(q, bio, rw)
);
TRACE_EVENT(block_plug,
@@ -387,7 +274,7 @@
TP_printk("[%s]", __entry->comm)
);
-TRACE_EVENT(block_unplug_timer,
+DECLARE_EVENT_CLASS(block_unplug,
TP_PROTO(struct request_queue *q),
@@ -406,23 +293,18 @@
TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
);
-TRACE_EVENT(block_unplug_io,
+DEFINE_EVENT(block_unplug, block_unplug_timer,
TP_PROTO(struct request_queue *q),
- TP_ARGS(q),
+ TP_ARGS(q)
+);
- TP_STRUCT__entry(
- __field( int, nr_rq )
- __array( char, comm, TASK_COMM_LEN )
- ),
+DEFINE_EVENT(block_unplug, block_unplug_io,
- TP_fast_assign(
- __entry->nr_rq = q->rq.count[READ] + q->rq.count[WRITE];
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
+ TP_PROTO(struct request_queue *q),
- TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
+ TP_ARGS(q)
);
TRACE_EVENT(block_split,