linux-stable/drivers/block/rnbd/rnbd-srv-trace.c
Santosh Pradhan 74e237b6e7 block/rnbd-srv: Add event tracing support
Add event tracing mechanism for following routines:
 - create_sess()
 - destroy_sess()
 - process_rdma()
 - process_msg_sess_info()
 - process_msg_open()
 - process_msg_close()

How to use:
1. Load the rnbd_server module
2. cd /sys/kernel/debug/tracing
3. If all the events need to be enabled:
        echo 1 > events/rnbd_srv/enable
4. OR only speific routine/event needs to be enabled e.g.
        echo 1 > events/rnbd_srv/create_sess/enable
5. cat trace
5. Run some workload which can trigger create_sess() routine/event

Signed-off-by: Santosh Pradhan <santosh.pradhan@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Link: https://lore.kernel.org/r/20220818105551.110490-2-haris.iqbal@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-22 07:52:51 -06:00

18 lines
383 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* RDMA Network Block Driver
*
* Copyright (c) 2022 1&1 IONOS SE. All rights reserved.
*/
#include "rtrs.h"
#include "rtrs-srv.h"
#include "rnbd-srv.h"
#include "rnbd-proto.h"
/*
* We include this last to have the helpers above available for the trace
* event implementations.
*/
#define CREATE_TRACE_POINTS
#include "rnbd-srv-trace.h"