Print the request tag along with other information in block trace events when tracing request , and unplug type (Sync / Async). Signed-off-by: Bean Huo <beanhuo@xxxxxxxxxx> --- include/trace/events/block.h | 36 +++++++++++++++++++++++++----------- 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/include/trace/events/block.h b/include/trace/events/block.h index 81b43f5..f8c0b9e 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -81,6 +81,7 @@ TRACE_EVENT(block_rq_requeue, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) + __field( int, tag ) __array( char, rwbs, RWBS_LEN ) __dynamic_array( char, cmd, 1 ) ), @@ -89,16 +90,17 @@ TRACE_EVENT(block_rq_requeue, __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; __entry->sector = blk_rq_trace_sector(rq); __entry->nr_sector = blk_rq_trace_nr_sectors(rq); + __entry->tag = rq->tag; blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); __get_str(cmd)[0] = '\0'; ), - TP_printk("%d,%d %s (%s) %llu + %u [%d]", + TP_printk("%d,%d %s (%s) %llu + %u tag=%d [%d]", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, __get_str(cmd), (unsigned long long)__entry->sector, - __entry->nr_sector, 0) + __entry->nr_sector, __entry->tag, 0) ); /** @@ -124,6 +126,7 @@ TRACE_EVENT(block_rq_complete, __field( sector_t, sector ) __field( unsigned int, nr_sector ) __field( int, error ) + __field( int, tag ) __array( char, rwbs, RWBS_LEN ) __dynamic_array( char, cmd, 1 ) ), @@ -133,16 +136,17 @@ TRACE_EVENT(block_rq_complete, __entry->sector = blk_rq_pos(rq); __entry->nr_sector = nr_bytes >> 9; __entry->error = error; + __entry->tag = rq->tag; blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes); __get_str(cmd)[0] = '\0'; ), - TP_printk("%d,%d %s (%s) %llu + %u [%d]", + TP_printk("%d,%d %s (%s) %llu + %u tag=%d [%d]", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, __get_str(cmd), (unsigned long long)__entry->sector, - __entry->nr_sector, __entry->error) + __entry->nr_sector, __entry->tag, __entry->error) ); DECLARE_EVENT_CLASS(block_rq, @@ -156,6 +160,7 @@ DECLARE_EVENT_CLASS(block_rq, __field( sector_t, sector ) __field( unsigned int, nr_sector ) __field( unsigned int, bytes ) + __field( int, tag ) __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) __dynamic_array( char, cmd, 1 ) @@ -166,17 +171,18 @@ DECLARE_EVENT_CLASS(block_rq, __entry->sector = blk_rq_trace_sector(rq); __entry->nr_sector = blk_rq_trace_nr_sectors(rq); __entry->bytes = blk_rq_bytes(rq); + __entry->tag = rq->tag; blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); __get_str(cmd)[0] = '\0'; memcpy(__entry->comm, current->comm, TASK_COMM_LEN); ), - TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", + TP_printk("%d,%d %s %u (%s) %llu + %u tag=%d [%s]", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, __entry->bytes, __get_str(cmd), (unsigned long long)__entry->sector, - __entry->nr_sector, __entry->comm) + __entry->nr_sector, __entry->tag, __entry->comm) ); /** @@ -297,6 +303,7 @@ DECLARE_EVENT_CLASS(block_bio_merge, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) + __field( int, tag ) __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) ), @@ -305,14 +312,15 @@ DECLARE_EVENT_CLASS(block_bio_merge, __entry->dev = bio_dev(bio); __entry->sector = bio->bi_iter.bi_sector; __entry->nr_sector = bio_sectors(bio); + __entry->tag = rq->tag; blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); memcpy(__entry->comm, current->comm, TASK_COMM_LEN); ), - TP_printk("%d,%d %s %llu + %u [%s]", + TP_printk("%d,%d %s %llu + %u tag=%d [%s]", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, (unsigned long long)__entry->sector, - __entry->nr_sector, __entry->comm) + __entry->nr_sector, __entry->tag, __entry->comm) ); /** @@ -478,15 +486,18 @@ DECLARE_EVENT_CLASS(block_unplug, TP_STRUCT__entry( __field( int, nr_rq ) + __field( bool, explicit ) __array( char, comm, TASK_COMM_LEN ) ), TP_fast_assign( __entry->nr_rq = depth; + __entry->explicit = explicit; memcpy(__entry->comm, current->comm, TASK_COMM_LEN); ), - TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) + TP_printk("[%s] %d %s", __entry->comm, __entry->nr_rq, + __entry->explicit ? "Sync" : "Async") ); /** @@ -611,6 +622,7 @@ TRACE_EVENT(block_rq_remap, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) + __field( int, tag ) __field( dev_t, old_dev ) __field( sector_t, old_sector ) __field( unsigned int, nr_bios ) @@ -621,18 +633,20 @@ TRACE_EVENT(block_rq_remap, __entry->dev = disk_devt(rq->rq_disk); __entry->sector = blk_rq_pos(rq); __entry->nr_sector = blk_rq_sectors(rq); + __entry->tag = rq->tag; __entry->old_dev = dev; __entry->old_sector = from; __entry->nr_bios = blk_rq_count_bios(rq); blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); ), - TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", + TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u, tag=%d", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, (unsigned long long)__entry->sector, __entry->nr_sector, MAJOR(__entry->old_dev), MINOR(__entry->old_dev), - (unsigned long long)__entry->old_sector, __entry->nr_bios) + (unsigned long long)__entry->old_sector, __entry->nr_bios, + __entry->tag) ); #endif /* _TRACE_BLOCK_H */ -- 2.7.4