From patchwork Mon Oct 25 08:33:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yafang Shao X-Patchwork-Id: 12580989 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD9E7C43217 for ; Mon, 25 Oct 2021 08:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 963B0604AC for ; Mon, 25 Oct 2021 08:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232467AbhJYIgv (ORCPT ); Mon, 25 Oct 2021 04:36:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232202AbhJYIgZ (ORCPT ); Mon, 25 Oct 2021 04:36:25 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39EADC061224; Mon, 25 Oct 2021 01:33:59 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id v16so2028429ple.9; Mon, 25 Oct 2021 01:33:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3JLxwHM1CeX0o7W4dwtTtvlyCiBChK2EpomgZ3q4G2c=; b=ePdfPG1JTA0ck7rtQ5KzZPGFF1sIvEFh4aTe6YJByMYFNpp44OqKvD13fZGA4EZ6id sDRU5XC4NgVOeJORW05ElLhXB73fHs4A5lqGI0Z7JMTeW75f56tnj84uRuv3fDoflktv Cxg3lG9LcxZLJ/4VJNZ0fVFD5yyADpYIxDzDVsDash7oLO/wcCtNZIq1FojiTpZferwd VHIPB117F8ZtuVZzPOovDkUTmtxWku9LUmVUih/uPrbAQChABOXO7CsMVqYc1mzESNGe zSwNavI52UykTZZUy3W4/sXxoXKFZCj+GJQh30XLp2LOZEDtBO8nscEpn1CCcw2KKcxa h5gQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3JLxwHM1CeX0o7W4dwtTtvlyCiBChK2EpomgZ3q4G2c=; b=PhdPLVRhMtAZq6yQY9LzwTbg02JzH4QRbv3bXP3Sw7A0r2td0q9XUGK9d28DR6n7Nr PETYKMiOjPBvvJr+TwfRZ+92/WD8gQycLCfM0gWbSaIWxTDp9biS91iN+wHbx0wrBSie Sgb6H6DRX9RjkHE7alnVfH1SIn8VvRHdQ5UZ8deWPoMzxlUXkj7wqKgJ1H8Cr5M2LJFP UyLkJGkNiPwB5D49/KAz/JzrZv0YG0fXI85Zgtuw0UafRMfgSVcCpowBcIa46KtM4MLB T0B1CRxZitPvL0Hd0Q1tqjt7MXYT0aoawYHeskJ8Rxb/iY5N6yNNNJmHhAupgLqsZym8 u/6w== X-Gm-Message-State: AOAM5313O/LQd9bYKsrF5yL6aw8kvFKkgE/fzto1SpEVFbJMqkn/4skL zZc/IxU6G1THoUU3yBgeqV8= X-Google-Smtp-Source: ABdhPJzKtmTPywPSXUOghfkjQUrKogUwRUlblGA2CFK9iX/Cg60lUvJHKUYmf90ZIfyJxDns3bO2sg== X-Received: by 2002:a17:903:32c7:b0:13e:ea76:f8cb with SMTP id i7-20020a17090332c700b0013eea76f8cbmr15237119plr.74.1635150838815; Mon, 25 Oct 2021 01:33:58 -0700 (PDT) Received: from localhost.localdomain ([140.82.17.67]) by smtp.gmail.com with ESMTPSA id p13sm2495694pfo.102.2021.10.25.01.33.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Oct 2021 01:33:58 -0700 (PDT) From: Yafang Shao To: akpm@linux-foundation.org, keescook@chromium.org, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, arnaldo.melo@gmail.com, pmladek@suse.com, peterz@infradead.org, viro@zeniv.linux.org.uk, valentin.schneider@arm.com, qiang.zhang@windriver.com, robdclark@chromium.org, christian@brauner.io, dietmar.eggemann@arm.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, davem@davemloft.net, kuba@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, dennis.dalessandro@cornelisnetworks.com, mike.marciniszyn@cornelisnetworks.com, dledford@redhat.com, jgg@ziepe.ca Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, oliver.sang@intel.com, lkp@intel.com, Yafang Shao , Andrii Nakryiko Subject: [PATCH v6 07/12] samples/bpf/offwaketime_kern: make sched_switch tracepoint args adopt to comm size change Date: Mon, 25 Oct 2021 08:33:10 +0000 Message-Id: <20211025083315.4752-8-laoar.shao@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211025083315.4752-1-laoar.shao@gmail.com> References: <20211025083315.4752-1-laoar.shao@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net The sched:sched_switch tracepoint is derived from kernel, we should make its args compitable with the kernel. Signed-off-by: Yafang Shao Cc: Mathieu Desnoyers Cc: Arnaldo Carvalho de Melo Cc: Andrii Nakryiko Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Al Viro Cc: Kees Cook Cc: Petr Mladek --- samples/bpf/offwaketime_kern.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/samples/bpf/offwaketime_kern.c b/samples/bpf/offwaketime_kern.c index 4866afd054da..eb4d94742e6b 100644 --- a/samples/bpf/offwaketime_kern.c +++ b/samples/bpf/offwaketime_kern.c @@ -113,11 +113,11 @@ static inline int update_counts(void *ctx, u32 pid, u64 delta) /* taken from /sys/kernel/debug/tracing/events/sched/sched_switch/format */ struct sched_switch_args { unsigned long long pad; - char prev_comm[16]; + char prev_comm[TASK_COMM_LEN]; int prev_pid; int prev_prio; long long prev_state; - char next_comm[16]; + char next_comm[TASK_COMM_LEN]; int next_pid; int next_prio; };