Commit 47894438 authored by Dylan Yudaken's avatar Dylan Yudaken Committed by Jens Axboe
Browse files

io_uring: add trace support for CQE overflow 



Add trace function for overflowing CQ ring.

Signed-off-by: default avatarDylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220421091345.2115755-2-dylany@fb.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 10c87333

include/trace/events/io_uring.h

+41 −1
Original line number Diff line number Diff line
@@ -543,6 +543,46 @@ TRACE_EVENT(io_uring_req_failed, 
		  (unsigned long long) __entry->pad2, __entry->error)

);





/*

 * io_uring_cqe_overflow - a CQE overflowed

 *

 * @ctx:		pointer to a ring context structure

 * @user_data:		user data associated with the request

 * @res:		CQE result

 * @cflags:		CQE flags

 * @ocqe:		pointer to the overflow cqe (if available)

 *

 */

TRACE_EVENT(io_uring_cqe_overflow,



	TP_PROTO(void *ctx, unsigned long long user_data, s32 res, u32 cflags,

		 void *ocqe),



	TP_ARGS(ctx, user_data, res, cflags, ocqe),



	TP_STRUCT__entry (

		__field(  void *,		ctx		)

		__field(  unsigned long long,	user_data	)

		__field(  s32,			res		)

		__field(  u32,			cflags		)

		__field(  void *,		ocqe		)

	),



	TP_fast_assign(

		__entry->ctx		= ctx;

		__entry->user_data	= user_data;

		__entry->res		= res;

		__entry->cflags		= cflags;

		__entry->ocqe		= ocqe;

	),



	TP_printk("ring %p, user_data 0x%llx, res %d, flags %x, "

		  "overflow_cqe %p",

		  __entry->ctx, __entry->user_data, __entry->res,

		  __entry->cflags, __entry->ocqe)

);



#endif /* _TRACE_IO_URING_H */



/* This part must be outside protection */