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io_uring: include cflags in completion trace event 

We should be including the completion flags for better introspection on
exactly what completion event was logged.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2021-02-22 22:05:00 -07:00
parent 6c2450ae55
commit 7471e1afab
2 changed files with 8 additions and 5 deletions
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2
fs/io_uring.c
View File

@ -1507,7 +1507,7 @@ static void __io_cqring_fill_event(struct io_kiocb *req, long res,
struct io_ring_ctx *ctx = req->ctx;
struct io_uring_cqe *cqe;
trace_io_uring_complete(ctx, req->user_data, res);
trace_io_uring_complete(ctx, req->user_data, res, cflags);
/*
* If we can't get a cq entry, userspace overflowed the

11
include/trace/events/io_uring.h
View File

@ -290,29 +290,32 @@ TRACE_EVENT(io_uring_fail_link,
* @ctx: pointer to a ring context structure
* @user_data: user data associated with the request
* @res: result of the request
* @cflags: completion flags
*
*/
TRACE_EVENT(io_uring_complete,
TP_PROTO(void *ctx, u64 user_data, long res),
TP_PROTO(void *ctx, u64 user_data, long res, unsigned cflags),
TP_ARGS(ctx, user_data, res),
TP_ARGS(ctx, user_data, res, cflags),
TP_STRUCT__entry (
__field( void *, ctx )
__field( u64, user_data )
__field( long, res )
__field( unsigned, cflags )
),
TP_fast_assign(
__entry->ctx = ctx;
__entry->user_data = user_data;
__entry->res = res;
__entry->cflags = cflags;
),
TP_printk("ring %p, user_data 0x%llx, result %ld",
TP_printk("ring %p, user_data 0x%llx, result %ld, cflags %x",
__entry->ctx, (unsigned long long)__entry->user_data,
__entry->res)
__entry->res, __entry->cflags)
);