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=1793908672; b=zDe2IDpXuyACYKAZuK5hZm0UTTMeQxRtzyyNNnZ5usiGpPVDh04z1EdvjjJ6p7Zc7mYE ZeP21Ib8OnPojky54RogrWpGQNHuMvcUHuxbnaTWBbMbsgUZ51kiW86e7ouhjqVTuEZUO DZYW3j0Ugk6xAyV+nJ452k3/ZqTF2P6xUcVpwZ6tAS9FOyA7yxZZishQxbltjrWDQ8nNe es8I4a82Apyd7GyXqkepKBCoJDtpSYUbtAU6okN3ekJzp1xAR9LpMVmsZIq0wftrTeUmp rlA07KBpVp02XsLj6eYQ8Kv+iwm4TLJp1ru9vvuVnYp3IZ0CyD6Nnm0icdktKhgAB2g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793908672; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=wH1L4MEaZ7mTO1+v+czsA7Bd7wFLluxTEf1+OMXx/G8=; b=qsgCR4qWce5rECWWrccARThdcDpekG1pwPjgETVUHguhCjHLD+HLmgRgKoNpzxO+HuYi iAddTZDS8+te4ELjMhojvClh4eGQ8pCT1QQRpKi0awUqXBeCFMWdXEkNCQBavtXAbWu5/ IcrCDb/gvdFlSCRqQoEBdc6sX0V31wDHpxiGSKHTXFarbJp9mUkaNiDqQwGn9bhrOhnGJ EgtnPnzhE17w2TyqMoXNGdZz6pwpxlBV1IcBsrogseJVutxlTsyP7JuASLD0JI45f2JyR wkeOythxAl38xAuLdp3lwFTcprZmxLaREN/pR1w/5wCHsMv2fkiOBmGWuXeEHWtVCtQ== 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="K7L/GY8E"; 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 5B2C4606A33D; Thu, 5 Nov 2026 19:57:52 +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=K7L/GY8E Received: by smtp.kernel.org (Postfix) with ESMTPSA id 888531F008A2; Thu, 5 Nov 2026 19:57:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793908672; bh=wH1L4MEaZ7mTO1+v+czsA7Bd7wFLluxTEf1+OMXx/G8=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=K7L/GY8EBAiMFhQN1jBxInyHUo7dNUqa1zvrbYPCV3cNlvaj0uRTG8m5XSXkg5qBH NxQgrlhnCqVof6ukdE4MBihCdgWAaKYJdSh5pmD/29Ml4etIsfQcRmUKoFVe1cyGDP q11+nFgfYJfO3maFGRlex7SnG2VtLRY23TP7Hza/2OShi8+SVSRRCqK/F/Ot8puN7A BIImj1rK3ldK8sG8OeFyPl3Ecx00bVxpaKA4ZbgnFfd+/z05CVTEd+m93B57VhW2YZ NWYy1/qXl35HEznR9p8aOsKL+D5Ca0SsAiDZCtE/ab89zfKkPK8dJVNfErjO5zAKnp FWuqFZDvwWXBA== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RESEND v2 11/30] latencytop: let procfs copy in writes to /proc/latency_stats 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-v2-11-319e0f9a8aae@kernel.org> References: <20261104-work-procfs-fs-v2-0-319e0f9a8aae@kernel.org> <20261104-work-procfs-fs-v2-11-319e0f9a8aae@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 05 Nov 2026 19:57:50 +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. The write only clears the statistics and doesn't look > at what was written anyway. 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=3D11