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Diffstat (limited to 'include/trace/events/block.h')
-rw-r--r--include/trace/events/block.h104
1 files changed, 89 insertions, 15 deletions
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 05c5e61f0a7c..9961726523d0 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -6,10 +6,61 @@
#include <linux/blktrace_api.h>
#include <linux/blkdev.h>
+#include <linux/buffer_head.h>
#include <linux/tracepoint.h>
#define RWBS_LEN 8
+DECLARE_EVENT_CLASS(block_buffer,
+
+ TP_PROTO(struct buffer_head *bh),
+
+ TP_ARGS(bh),
+
+ TP_STRUCT__entry (
+ __field( dev_t, dev )
+ __field( sector_t, sector )
+ __field( size_t, size )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = bh->b_bdev->bd_dev;
+ __entry->sector = bh->b_blocknr;
+ __entry->size = bh->b_size;
+ ),
+
+ TP_printk("%d,%d sector=%llu size=%zu",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long long)__entry->sector, __entry->size
+ )
+);
+
+/**
+ * block_touch_buffer - mark a buffer accessed
+ * @bh: buffer_head being touched
+ *
+ * Called from touch_buffer().
+ */
+DEFINE_EVENT(block_buffer, block_touch_buffer,
+
+ TP_PROTO(struct buffer_head *bh),
+
+ TP_ARGS(bh)
+);
+
+/**
+ * block_dirty_buffer - mark a buffer dirty
+ * @bh: buffer_head being dirtied
+ *
+ * Called from mark_buffer_dirty().
+ */
+DEFINE_EVENT(block_buffer, block_dirty_buffer,
+
+ TP_PROTO(struct buffer_head *bh),
+
+ TP_ARGS(bh)
+);
+
DECLARE_EVENT_CLASS(block_rq_with_error,
TP_PROTO(struct request_queue *q, struct request *rq),
@@ -206,7 +257,6 @@ TRACE_EVENT(block_bio_bounce,
/**
* block_bio_complete - completed all work on the block operation
- * @q: queue holding the block operation
* @bio: block operation completed
* @error: io error value
*
@@ -215,9 +265,9 @@ TRACE_EVENT(block_bio_bounce,
*/
TRACE_EVENT(block_bio_complete,
- TP_PROTO(struct request_queue *q, struct bio *bio, int error),
+ TP_PROTO(struct bio *bio, int error),
- TP_ARGS(q, bio, error),
+ TP_ARGS(bio, error),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -228,7 +278,8 @@ TRACE_EVENT(block_bio_complete,
),
TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->dev = bio->bi_bdev ?
+ bio->bi_bdev->bd_dev : 0;
__entry->sector = bio->bi_sector;
__entry->nr_sector = bio->bi_size >> 9;
__entry->error = error;
@@ -241,11 +292,11 @@ TRACE_EVENT(block_bio_complete,
__entry->nr_sector, __entry->error)
);
-DECLARE_EVENT_CLASS(block_bio,
+DECLARE_EVENT_CLASS(block_bio_merge,
- TP_PROTO(struct request_queue *q, struct bio *bio),
+ TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
- TP_ARGS(q, bio),
+ TP_ARGS(q, rq, bio),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -272,31 +323,33 @@ DECLARE_EVENT_CLASS(block_bio,
/**
* block_bio_backmerge - merging block operation to the end of an existing operation
* @q: queue holding operation
+ * @rq: request bio is being merged into
* @bio: new block operation to merge
*
* Merging block request @bio to the end of an existing block request
* in queue @q.
*/
-DEFINE_EVENT(block_bio, block_bio_backmerge,
+DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
- TP_PROTO(struct request_queue *q, struct bio *bio),
+ TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
- TP_ARGS(q, bio)
+ TP_ARGS(q, rq, bio)
);
/**
* block_bio_frontmerge - merging block operation to the beginning of an existing operation
* @q: queue holding operation
+ * @rq: request bio is being merged into
* @bio: new block operation to merge
*
* Merging block IO operation @bio to the beginning of an existing block
* operation in queue @q.
*/
-DEFINE_EVENT(block_bio, block_bio_frontmerge,
+DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
- TP_PROTO(struct request_queue *q, struct bio *bio),
+ TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
- TP_ARGS(q, bio)
+ TP_ARGS(q, rq, bio)
);
/**
@@ -306,11 +359,32 @@ DEFINE_EVENT(block_bio, block_bio_frontmerge,
*
* About to place the block IO operation @bio into queue @q.
*/
-DEFINE_EVENT(block_bio, block_bio_queue,
+TRACE_EVENT(block_bio_queue,
TP_PROTO(struct request_queue *q, struct bio *bio),
- TP_ARGS(q, bio)
+ TP_ARGS(q, bio),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( sector_t, sector )
+ __field( unsigned int, nr_sector )
+ __array( char, rwbs, RWBS_LEN )
+ __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)
);
DECLARE_EVENT_CLASS(block_get_rq,