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io_uring: remove io_uring_add_to_prev() trace event 

This internal logic was killed with the conversion to io-wq, so we no
longer have a need for this particular trace. Kill it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-11-01 12:44:40 -06:00
parent e9ffa5c2b7
commit 0069fc6b1c
1 changed files with 0 additions and 29 deletions
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29
include/trace/events/io_uring.h
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@ -227,35 +227,6 @@ TRACE_EVENT(io_uring_link,
__entry->ctx, __entry->req, __entry->target_req)
);
/**
* io_uring_add_to_prev - called after a request was added into a previously
* submitted work
*
* @req: pointer to a request, added to a previous
* @ret: whether or not it was completed successfully
*
* Allows to track merged work, to figure out how often requests are piggy
* backed into other ones, changing the execution flow.
*/
TRACE_EVENT(io_uring_add_to_prev,
TP_PROTO(void *req, bool ret),
TP_ARGS(req, ret),
TP_STRUCT__entry (
__field( void *, req )
__field( bool, ret )
),
TP_fast_assign(
__entry->req = req;
__entry->ret = ret;
),
TP_printk("request %p, ret %d", __entry->req, __entry->ret)
);
/**
* io_uring_cqring_wait - called before start waiting for an available CQE
*