From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C48E22FE592; Fri, 22 Aug 2025 13:19:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755868786; cv=none; b=GHD+maRqsA+Qpq7sw0EQf6tjy+hJW5paXDeG/WsSZY5YXTDKiMBEymDUe0OQgYXwz1x8rcgivPSnPRIe07KzyRiY7JtNxO76f0HxeS7ujGBJD06EFCJlz3ycnzALl2DcNPhDqCFtcOXPphb+joG47f0bz/Uou3O1EoLf4z1X8gE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755868786; c=relaxed/simple; bh=MyNgdMxnyEB/P7oXWoztxQMr+47U1RLFpT8c8a5OKoc=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=SSombk1bNWZ2DDrRJG9HIbDjXXzO7U3lwCrx2GNWDPLA6R0ERezATFY5n7aj224rOLO9MN0TFiRuas88Zh0MEXwehxgdoX+ZmKMp5goojNYJJeWdGISt01thA/Xq9i2mX8E9piC24jXRfG8qNZZR0ahbTNW1he9DduvQ+j2EHsc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Dzav66wS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Dzav66wS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B787C4CEED; Fri, 22 Aug 2025 13:19:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755868786; bh=MyNgdMxnyEB/P7oXWoztxQMr+47U1RLFpT8c8a5OKoc=; h=From:Subject:Date:To:Cc:From; b=Dzav66wSYqOQh8PgImtIxM6Cwlr5krkZrJf+Uu5VPHyuhSq5Mw+zkORV28y1TFVnZ m+aPS5PjU1NFfMmbJDXcrIDDnu2cGNRbwfQubvtO81xavtkDRYx4NZrUVxBCx/NnfN ncZiOYpie5SitqOF6Eh/RvYnXXJIl/SHRaYvLld7FaYlm+uXgh1i1+4qtkIhSHweyW 0YxTHB9TgUvzR6/Nubmqbzv/p/V7Ov7BY3yGpHJu1r2huyyjDxejrd49WLaZ901BkS 5+vQNHMUcfmaD8nzHCkcNcwNzsc6FQQdKXSxk2Xnl9qXeu3kGv13mZXa2W4mR0mqAB 8TvIttVQXfprg== From: Jeff Layton Subject: [PATCH v2 0/2] sunrpc: allow dprintk() to go to the trace buffer instead of console Date: Fri, 22 Aug 2025 09:19:21 -0400 Message-Id: <20250822-nfs-testing-v2-0-5f6034b16e46@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAFluqGgC/23MQQ6CMBCF4auQWVszHQWtK+9hWKAdYKIppNM0G sLdraxd/i953wLKUVjhUi0QOYvKFErQroLH2IWBjfjSQEg1nsma0KtJrEnCYOhOFk/oavJHKI8 5ci/vTbu1pUfRNMXPhmf7W/872Ro0PTbonGsO7Lvrk2Pg136KA7Trun4BfKlknKcAAAA= X-Change-ID: 20250821-nfs-testing-2b21070952d4 To: Trond Myklebust , Anna Schumaker , Chuck Lever , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Jeff Layton X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1243; i=jlayton@kernel.org; h=from:subject:message-id; bh=MyNgdMxnyEB/P7oXWoztxQMr+47U1RLFpT8c8a5OKoc=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBoqG5nlo54B+e38yagzXYM8iUYdmSkDPT+QaAEj K8b3fpOdQuJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaKhuZwAKCRAADmhBGVaC FfWLEACyR9DwlivE1t0R3+hiKGnmcX8Dj+dyFumcDeLRq0r6F/qFqNOPJl1U+cxvCXdt91r2tO/ kI6bHTnCJwFdzwhj4oySHNoYqmeDFC4ZyxrO+pKreWR2Uw9BdudISWMywMcNntIQLko48dyelUR CWni6JnHsVgqEnfkhfvAdmZ2Kv2pXeKuBsI0n7YhOHVs4emAlBRieNql30ELQpzQZZFr/Gg952d wonnYN8rNJuyp/0FYM3brch0ucTao9P4jHTbjvJAyMhO2uDkQUnimH8JE/DxyeRkVePy3u6NiWL sjTM1gnfbfBit5XiIOyiayUqMJGbgNkR39o7bk8q4NO74cd1dU4GEInMk6F4+0H/ZGBzsHD6xQa MCPjjPq3cImkmL2WDtpvveSQ22ywLA5ZUpZ0KAYcIkrLMepXjU3EhkPq7CbfyHi+ZPn7qHyqPqt /s4jB/qBcDpRXqUmSGmK0vCa9YhAukKM0iWZ9SFkCC42r14upoDLAKSuy7XPgqAti/6UJ7kDHqc T8suQQgq3//JmGPxXxTDmi8BmNa1bdFmXBIXRUDCNTDMzPz8IA0zwcqyPLloXBcgmi9CjzSvGiF CpMD4CtMfl91IhtTQtPzoScJQUY1NUZ+K9GJb9mGeBwR3U/VweSGw7zmTSPPjVCjE6EWSjiGvd0 wwCaQwo2/3whrbg== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 While we have added a lot of static tracepoints in the last few years, we still have a load of dprintks in place at all levels of the NFS/NLM/RPC stack. At the same time, they're pretty useless under any significant load due to the console overhead. This adds a new Kconfig switch to allow those to go to the trace buffer instead. In addition to being more efficient, that allows us to enable static tracepoints alongside dprintk() and get a unified log. Signed-off-by: Jeff Layton --- Changes in v2: - pr_default() doesn't exist. Use printk(KERN_DEFAULT ...) instead. - Link to v1: https://lore.kernel.org/r/20250821-nfs-testing-v1-0-f06099963eda@kernel.org --- Jeff Layton (2): sunrpc: remove dfprintk_cont() and dfprintk_rcu_cont() sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer fs/nfs/write.c | 6 +++--- include/linux/sunrpc/debug.h | 30 ++++++++---------------------- net/sunrpc/Kconfig | 14 ++++++++++++++ 3 files changed, 25 insertions(+), 25 deletions(-) --- base-commit: 80a1bea0cd81de70c56b37a8292c23d57419776f change-id: 20250821-nfs-testing-2b21070952d4 Best regards, -- Jeff Layton