linux-kernel - [PATCH 1/1] tracing/sched: sched_switch: place prev_comm and next

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Date: Wed, 17 Apr 2024 18:29:00 +0800
From: Tio Zhang <tiozhang@...iglobal.com>
To: <rostedt@...dmis.org>, <mhiramat@...nel.org>
CC: <akpm@...ux-foundation.org>, <linux-kernel@...r.kernel.org>,
	<mathieu.desnoyers@...icios.com>, <tiozhang@...iglobal.com>,
	<zyhtheonly@...il.com>, <zyhtheonly@...h.net>
Subject: [PATCH 1/1] tracing/sched: sched_switch: place prev_comm and
 next_comm in right order

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 */
-- 
2.17.1