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Message-ID: <14898c69-6a2e-4a9d-a0d4-d674087cd1ae@linux.ibm.com>
Date: Tue, 23 Apr 2024 15:54:08 +0530
From: Madadi Vineeth Reddy <vineethr@...ux.ibm.com>
To: tiozhang@...iglobal.com
Cc: Steven Rostedt <rostedt@...dmis.org>, mhiramat@...nel.org,
akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
zyhtheonly@...il.com, zyhtheonly@...h.net,
Madadi Vineeth Reddy <vineethr@...ux.ibm.com>
Subject: Re: [PATCH 1/1] tracing/sched: sched_switch: place prev_comm and
next_comm in right order
Hi Tio zhang,
On 17/04/24 15:59, Tio Zhang wrote:
> Switch the order of prev_comm and next_comm in sched_switch's code to
> align with its printing order.
>
> Signed-off-by: Tio Zhang <tiozhang@...iglobal.com>
> ---
> include/trace/events/sched.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
> index dbb01b4b7451..a4bd4330db4c 100644
> --- a/include/trace/events/sched.h
> +++ b/include/trace/events/sched.h
> @@ -239,11 +239,11 @@ TRACE_EVENT(sched_switch,
> ),
>
> TP_fast_assign(
> - memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
> + memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
> __entry->prev_pid = prev->pid;
> __entry->prev_prio = prev->prio;
> __entry->prev_state = __trace_sched_switch_state(preempt, prev_state, prev);
> - memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
> + memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
> __entry->next_pid = next->pid;
> __entry->next_prio = next->prio;
> /* XXX SCHED_DEADLINE */
Yes, makes sense to have all previous and then the next for increased readability.
Reviewed-by: Madadi Vineeth Reddy <vineethr@...ux.ibm.com>
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