From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793908676; b=J7usuNP53s/EQj2YvXf5SZQctvkA2yzchIO+EaAnCNInLVXXzkVU0GpRmLULSb67yvtM vag/kbFLhRp8loI/yBuit5xSgKP5dsse5R5etjXtsrV8iYOLE2butFxTHoPzlVDP8ImXH +uCiadgqB90He27MN2QalU0QVylLSJ0h5naWbIoR6QqNt6FKspw3KqyedRWCkYkPS6rIP 1/8kY+S4u5qfWFaZf2mMorPtz/yuK0sj6+uiHp36eURgP57T9Sp3tEmzkEq2uhlUb/oBg 5DSiZ/9oD+c8Obv5cIGrEHGhsVFYYCt9Mgn8dkhalPvRKKDHycezE99eHTJ8nB5fp+g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793908676; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=0Y90+62nmTyWN8rDu95xmVr4WrW08UQZKP5u1iiw3Yc=; b=kvUch/f+DCZUG4kVmuNEVnnyJ+AdVuzINVudYZh763a5OTGJ9Alu0LDA55tqMrCLrtc5 epsnMDnHatgegAgl/fvBvIhTvw8ENstj24nMgmvBAvE4a4qHfoO2KxQu9zQHFsDgWxQLW YTn9NsZxsk7xLQtMiVu9ByZtmZHsH4w13VfkoAWzaEcspC+W/rHKVEnggxoY50mnkcObq odU10cd6j8KL4otMaXWiY9RBnVwXD9yjbGoq0CqMhNKDyaFYsjwzOW3H+Rs8v27S8KI++ w3Y/LspP/q9nwbXWT1pxy7+oGjgoVnqAtSwfES/nd7B7Ky6gGWGBV8NCntF1P+M7UCg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=KynCzb93; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26437606B9EB; Thu, 5 Nov 2026 19:57:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=KynCzb93 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 653031F008A2; Thu, 5 Nov 2026 19:57:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793908675; bh=0Y90+62nmTyWN8rDu95xmVr4WrW08UQZKP5u1iiw3Yc=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=KynCzb93jkCBa5XgAWl3yl9M0MTpo3fxH9GGhodXmsFvHVjoHrH7fC+ss62AYBxh3 I2L0c2a5NWJkrTtaMLAFCb0YpREbRTcfJDOpJGBwIDXewFn9Z8ZiqtEhC4P6mcbj6m SFTFzfvvToOSL3d4M0WtVj0ToBnc19Pvn5LF4z5IE5o4EMjoAHnxFEXg5Kkx0Ds3Os 12N+atsPV+EcqCPQBvgkEGTq6zB8hfUcnsT60L+cAHou3s3B6ZpTb9Oexwi673zZ6g PA+M8lzFtMydtOAITauMFceBvtdRNHvZWcaRerMdas+D0BM3yOmBnUicVq3olC4LSn dmNJYcXoE/eyg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RESEND v2 13/30] locking/lockdep: let procfs copy in writes to /proc/lock_stat Reply-To: sashiko-reviews@lists.linux.dev To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-ext4@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261104-work-procfs-fs-v2-13-319e0f9a8aae@kernel.org> References: <20261104-work-procfs-fs-v2-0-319e0f9a8aae@kernel.org> <20261104-work-procfs-fs-v2-13-319e0f9a8aae@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 05 Nov 2026 19:57:54 +0000 X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Implement ->proc_write_buf() so procfs copies in what is written before > it pins the entry, and look at the first character of that copy. Writes > larger than PAGE_SIZE - 1 bytes fail with -EINVAL now. >=20 > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261104-work-procf= s-fs-v2-0-319e0f9a8aae@kernel.org?part=3D13