+++ /dev/null
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM block
-
-#if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_BLOCK_H
-
-#include <linux/blktrace_api.h>
-#include <linux/blkdev.h>
-#include <linux/tracepoint.h>
-
-#define RWBS_LEN 8
-
-DECLARE_EVENT_CLASS(block_rq_with_error,
-
- 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, RWBS_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 = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
- 0 : blk_rq_pos(rq);
- __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
- 0 : blk_rq_sectors(rq);
- __entry->errors = rq->errors;
-
- blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(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)
-);
-
-/**
- * block_rq_abort - abort block operation request
- * @q: queue containing the block operation request
- * @rq: block IO operation request
- *
- * Called immediately after pending block IO operation request @rq in
- * queue @q is aborted. The fields in the operation request @rq
- * can be examined to determine which device and sectors the pending
- * operation would access.
- */
-DEFINE_EVENT(block_rq_with_error, block_rq_abort,
-
- TP_PROTO(struct request_queue *q, struct request *rq),
-
- TP_ARGS(q, rq)
-);
-
-/**
- * block_rq_requeue - place block IO request back on a queue
- * @q: queue holding operation
- * @rq: block IO operation request
- *
- * The block operation request @rq is being placed back into queue
- * @q. For some reason the request was not completed and needs to be
- * put back in the queue.
- */
-DEFINE_EVENT(block_rq_with_error, block_rq_requeue,
-
- TP_PROTO(struct request_queue *q, struct request *rq),
-
- TP_ARGS(q, rq)
-);
-
-/**
- * block_rq_complete - block IO operation completed by device driver
- * @q: queue containing the block operation request
- * @rq: block operations request
- *
- * The block_rq_complete tracepoint event indicates that some portion
- * of operation request has been completed by the device driver. If
- * the @rq->bio is %NULL, then there is absolutely no additional work to
- * do for the request. If @rq->bio is non-NULL then there is
- * additional work required to complete the request.
- */
-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),
-
- 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, RWBS_LEN )
- __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 = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
- 0 : blk_rq_pos(rq);
- __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
- 0 : blk_rq_sectors(rq);
- __entry->bytes = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
- blk_rq_bytes(rq) : 0;
-
- blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(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)
-);
-
-/**
- * block_rq_insert - insert block operation request into queue
- * @q: target queue
- * @rq: block IO operation request
- *
- * Called immediately before block operation request @rq is inserted
- * into queue @q. The fields in the operation request @rq struct can
- * be examined to determine which device and sectors the pending
- * operation would access.
- */
-DEFINE_EVENT(block_rq, block_rq_insert,
-
- TP_PROTO(struct request_queue *q, struct request *rq),
-
- TP_ARGS(q, rq)
-);
-
-/**
- * block_rq_issue - issue pending block IO request operation to device driver
- * @q: queue holding operation
- * @rq: block IO operation operation request
- *
- * Called when block operation request @rq from queue @q is sent to a
- * device driver for processing.
- */
-DEFINE_EVENT(block_rq, block_rq_issue,
-
- TP_PROTO(struct request_queue *q, struct request *rq),
-
- TP_ARGS(q, rq)
-);
-
-/**
- * block_bio_bounce - used bounce buffer when processing block operation
- * @q: queue holding the block operation
- * @bio: block operation
- *
- * A bounce buffer was used to handle the block operation @bio in @q.
- * This occurs when hardware limitations prevent a direct transfer of
- * data between the @bio data memory area and the IO device. Use of a
- * bounce buffer requires extra copying of data and decreases
- * performance.
- */
-TRACE_EVENT(block_bio_bounce,
-
- 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, RWBS_LEN )
- __array( char, comm, TASK_COMM_LEN )
- ),
-
- TP_fast_assign(
- __entry->dev = bio->bi_bdev ?
- bio->bi_bdev->bd_dev : 0;
- __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)
-);
-
-/**
- * block_bio_complete - completed all work on the block operation
- * @q: queue holding the block operation
- * @bio: block operation completed
- * @error: io error value
- *
- * This tracepoint indicates there is no further work to do on this
- * block IO operation @bio.
- */
-TRACE_EVENT(block_bio_complete,
-
- TP_PROTO(struct request_queue *q, struct bio *bio, int error),
-
- TP_ARGS(q, bio, error),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned, nr_sector )
- __field( int, error )
- __array( char, rwbs, RWBS_LEN)
- ),
-
- TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- __entry->error = error;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- ),
-
- TP_printk("%d,%d %s %llu + %u [%d]",
- MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->error)
-);
-
-DECLARE_EVENT_CLASS(block_bio,
-
- 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, 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)
-);
-
-/**
- * block_bio_backmerge - merging block operation to the end of an existing operation
- * @q: queue holding operation
- * @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,
-
- TP_PROTO(struct request_queue *q, struct bio *bio),
-
- TP_ARGS(q, bio)
-);
-
-/**
- * block_bio_frontmerge - merging block operation to the beginning of an existing operation
- * @q: queue holding operation
- * @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,
-
- TP_PROTO(struct request_queue *q, struct bio *bio),
-
- TP_ARGS(q, bio)
-);
-
-/**
- * block_bio_queue - putting new block IO operation in queue
- * @q: queue holding operation
- * @bio: new block operation
- *
- * About to place the block IO operation @bio into queue @q.
- */
-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),
-
- TP_ARGS(q, bio, rw),
-
- 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 ? 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_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)
-);
-
-/**
- * block_getrq - get a free request entry in queue for block IO operations
- * @q: queue for operations
- * @bio: pending block IO operation
- * @rw: low bit indicates a read (%0) or a write (%1)
- *
- * A request struct for queue @q has been allocated to handle the
- * block IO operation @bio.
- */
-DEFINE_EVENT(block_get_rq, block_getrq,
-
- TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
-
- 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
- * @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
- *
- * Plug the request queue @q. Do not allow block operation requests
- * to be sent to the device driver. Instead, accumulate requests in
- * the queue to improve throughput performance of the block device.
- */
-TRACE_EVENT(block_plug,
-
- TP_PROTO(struct request_queue *q),
-
- TP_ARGS(q),
-
- TP_STRUCT__entry(
- __array( char, comm, TASK_COMM_LEN )
- ),
-
- TP_fast_assign(
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
-
- TP_printk("[%s]", __entry->comm)
-);
-
-DECLARE_EVENT_CLASS(block_unplug,
-
- TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
-
- TP_ARGS(q, depth, explicit),
-
- TP_STRUCT__entry(
- __field( int, nr_rq )
- __array( char, comm, TASK_COMM_LEN )
- ),
-
- TP_fast_assign(
- __entry->nr_rq = depth;
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
- ),
-
- TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
-);
-
-/**
- * block_unplug - release of operations requests in request queue
- * @q: request queue to unplug
- * @depth: number of requests just added to the queue
- * @explicit: whether this was an explicit unplug, or one from schedule()
- *
- * Unplug request queue @q because device driver is scheduled to work
- * on elements in the request queue.
- */
-DEFINE_EVENT(block_unplug, block_unplug,
-
- TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
-
- TP_ARGS(q, depth, explicit)
-);
-
-/**
- * block_split - split a single bio struct into two bio structs
- * @q: queue containing the bio
- * @bio: block operation being split
- * @new_sector: The starting sector for the new bio
- *
- * The bio request @bio in request queue @q needs to be split into two
- * bio requests. The newly created @bio request starts at
- * @new_sector. This split may be required due to hardware limitation
- * such as operation crossing device boundaries in a RAID system.
- */
-TRACE_EVENT(block_split,
-
- TP_PROTO(struct request_queue *q, struct bio *bio,
- unsigned int new_sector),
-
- TP_ARGS(q, bio, new_sector),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( sector_t, new_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->new_sector = new_sector;
- 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 / %llu [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
- (unsigned long long)__entry->sector,
- (unsigned long long)__entry->new_sector,
- __entry->comm)
-);
-
-/**
- * block_bio_remap - map request for a logical device to the raw device
- * @q: queue holding the operation
- * @bio: revised operation
- * @dev: device for the operation
- * @from: original sector for the operation
- *
- * An operation for a logical device has been mapped to the
- * raw block device.
- */
-TRACE_EVENT(block_bio_remap,
-
- TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
- sector_t from),
-
- TP_ARGS(q, bio, dev, from),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __field( dev_t, old_dev )
- __field( sector_t, old_sector )
- __array( char, rwbs, RWBS_LEN)
- ),
-
- TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- __entry->old_dev = dev;
- __entry->old_sector = from;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- ),
-
- TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
- 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)
-);
-
-/**
- * block_rq_remap - map request for a block operation request
- * @q: queue holding the operation
- * @rq: block IO operation request
- * @dev: device for the operation
- * @from: original sector for the operation
- *
- * The block operation request @rq in @q has been remapped. The block
- * operation request @rq holds the current information and @from hold
- * the original sector.
- */
-TRACE_EVENT(block_rq_remap,
-
- TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
- sector_t from),
-
- TP_ARGS(q, rq, dev, from),
-
- TP_STRUCT__entry(
- __field( dev_t, dev )
- __field( sector_t, sector )
- __field( unsigned int, nr_sector )
- __field( dev_t, old_dev )
- __field( sector_t, old_sector )
- __array( char, rwbs, RWBS_LEN)
- ),
-
- TP_fast_assign(
- __entry->dev = disk_devt(rq->rq_disk);
- __entry->sector = blk_rq_pos(rq);
- __entry->nr_sector = blk_rq_sectors(rq);
- __entry->old_dev = dev;
- __entry->old_sector = from;
- blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
- ),
-
- TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
- 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)
-);
-
-#endif /* _TRACE_BLOCK_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>
-
projects / lttng-modules.git / blobdiff