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Message-ID: <20241107122648.2504368-2-elver@google.com>
Date: Thu, 7 Nov 2024 13:25:48 +0100
From: Marco Elver <elver@...gle.com>
To: elver@...gle.com, Steven Rostedt <rostedt@...dmis.org>,
Kees Cook <keescook@...omium.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Andrew Morton <akpm@...ux-foundation.org>, Oleg Nesterov <oleg@...hat.com>,
linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
Dmitry Vyukov <dvyukov@...gle.com>, kasan-dev@...glegroups.com
Subject: [PATCH v2 2/2] tracing: Remove pid in task_rename tracing output
Remove pid in task_rename tracepoint output, since that tracepoint only
deals with the current task, and is printed by default. This also saves
some space in the entry and avoids wasted padding.
Link: https://lkml.kernel.org/r/20241105120247.596a0dc9@gandalf.local.home
Suggested-by: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Marco Elver <elver@...gle.com>
---
v2:
* New patch
---
include/trace/events/task.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/include/trace/events/task.h b/include/trace/events/task.h
index 9202cb2524c4..ee202aafa9fd 100644
--- a/include/trace/events/task.h
+++ b/include/trace/events/task.h
@@ -38,22 +38,19 @@ TRACE_EVENT(task_rename,
TP_ARGS(task, comm),
TP_STRUCT__entry(
- __field( pid_t, pid)
__array( char, oldcomm, TASK_COMM_LEN)
__array( char, newcomm, TASK_COMM_LEN)
__field( short, oom_score_adj)
),
TP_fast_assign(
- __entry->pid = task->pid;
memcpy(entry->oldcomm, task->comm, TASK_COMM_LEN);
strscpy(entry->newcomm, comm, TASK_COMM_LEN);
__entry->oom_score_adj = task->signal->oom_score_adj;
),
- TP_printk("pid=%d oldcomm=%s newcomm=%s oom_score_adj=%hd",
- __entry->pid, __entry->oldcomm,
- __entry->newcomm, __entry->oom_score_adj)
+ TP_printk("oldcomm=%s newcomm=%s oom_score_adj=%hd",
+ __entry->oldcomm, __entry->newcomm, __entry->oom_score_adj)
);
/**
--
2.47.0.199.ga7371fff76-goog
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