From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f73.google.com (mail-ej1-f73.google.com [209.85.218.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D98920FA81 for ; Thu, 7 Nov 2024 12:26:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730982420; cv=none; b=grXYEIkNobxOdEmgAnrWSjuh22opDt26AqbBHwv5YjTY44cD7uPRRFfKfjin3xeJ38BanKcngc80B7BFUF9hB3LlzTQAn9QGW5YMUUb2uc26xEBNL8ruYP/RaWmEqHXS5zTeaPGKelmLoCTtgCjQAu6fAzB0IUaXNMLY5R57kF8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730982420; c=relaxed/simple; bh=fz8dEln5hGrZlPDA3uJ4PthK2vgrx3tU9QXgcl4xOeY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=A8wqAo0XroknACuAUYcIS+9tz2uREylw7LDNa9Xb5BaZDxOBnjjbCw+XwdeHBs5eO0fCF6VgEZj9bg5vCdrF2I3Kn8bb2k9DmIPPN534z0KIjanmZzd3CixAjTuo4B+dzhJUZHoia+0rzGPlFGN2eivx+OvtgU86z6t08ou7EGo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--elver.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=oJ0G+TQ9; arc=none smtp.client-ip=209.85.218.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--elver.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="oJ0G+TQ9" Received: by mail-ej1-f73.google.com with SMTP id a640c23a62f3a-a99ea3e1448so76963566b.3 for ; Thu, 07 Nov 2024 04:26:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1730982416; x=1731587216; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=9sHGNL7Z8k+ba9HHh8eNNDPID0xL9oZVgVqMixfCZM0=; b=oJ0G+TQ9K4x7brHqsIraiP35+bTCcwymfTTmuSIP5VDQ51wVVUNeThWK4O9xG71ZDT PnQm8Vvo/x4n/X1kXnFwX1F4HOTWCC28RLhMgNcdUDfZzUL1GgR6dHRbbi32JVNo+yi9 FKcZywqaeG8KujSzx5mKc97n6O20nzUY8lz5sBrSZogaR9HeCS25VgjJTFbdPqqn9mul K39DgOlbK7qytS2FzodxCcS+ySuFcjkMnALRk1vmell0o5ejo9sDuFq0E30D7PyQqtO6 Qqf1hmcy4UxKLFZFDxj9T9pk6Oz3GBGWho1BqzjXITf4FISsQcIo9NeWyVehvwJnPTUk vdUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730982416; x=1731587216; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9sHGNL7Z8k+ba9HHh8eNNDPID0xL9oZVgVqMixfCZM0=; b=a0C1946ykAX58BWq/GcpNNK3Bj/1IFX9CElnKEtreVfCxvp5gna87RfarbHgf2H3Pg QiH16bmvOkybl9MLjCK1ZXBlN6ugNlx+kqrKcQftMoOBmQ/yy8D1t+wWnoMnJGyxDbbt 4vgR3DVLx/Wn1QfZ4ZgVQxTpyyKyMpoOFkMu8lnYAcVWUAt0na0HMK81m1Ux+Q9mhRXS nZO+UzoHIjY0Ty4aiuCP+n2XHe5o0hLpYqzCBQ0fAZR1tW3IY9+sOHtf/PGbKKnOOQZt IQFQ6rMarwBF6aLfKydR7RlA+hUNbn9Aw0xWXXcLCKObkiVsU1gfVT47N9d0I0SvHjh1 0jdg== X-Forwarded-Encrypted: i=1; AJvYcCXBkL5G82yKzkEjw5kNNF5fi16SVVlIcQrmTcG6bg7MrXnCYjE0rDF2RE5xcq3Xdktysp2GrpmksHNEG+8=@vger.kernel.org X-Gm-Message-State: AOJu0Yynd72YVyC3hEjelS6U6SbBIC6dBaY6/Epfo4BDVO0CU3DuVgmx JuBdkpHcDO3QuaYCwBdG/e2jDPDscl5ni1qgFjF+L/BcZOwlGGC9eqntEq4j/7P3VMkffBY1cw= = X-Google-Smtp-Source: AGHT+IF8rH2dVdPY8X0OhEakGQROrqaJ/kgTLUoX5KRP32vaRlqnDo/+DlfBy71KkMigf9oHS00q79hezg== X-Received: from elver.muc.corp.google.com ([2a00:79e0:9c:201:8fd5:be93:a8c0:7566]) (user=elver job=sendgmr) by 2002:a17:906:d108:b0:a9a:1209:c4d with SMTP id a640c23a62f3a-a9de6007a5emr1152566b.9.1730982416079; Thu, 07 Nov 2024 04:26:56 -0800 (PST) Date: Thu, 7 Nov 2024 13:25:48 +0100 In-Reply-To: <20241107122648.2504368-1-elver@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241107122648.2504368-1-elver@google.com> X-Mailer: git-send-email 2.47.0.199.ga7371fff76-goog Message-ID: <20241107122648.2504368-2-elver@google.com> Subject: [PATCH v2 2/2] tracing: Remove pid in task_rename tracing output From: Marco Elver To: elver@google.com, Steven Rostedt , Kees Cook Cc: Masami Hiramatsu , Mathieu Desnoyers , Andrew Morton , Oleg Nesterov , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Dmitry Vyukov , kasan-dev@googlegroups.com Content-Type: text/plain; charset="UTF-8" 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 Signed-off-by: Marco Elver --- 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