From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 137646098140 for ; Mon, 2 Nov 2026 15:03:04 +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=Ht8IvPAW Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4jJFLt5mHxz2y8m; Tue, 03 Nov 2026 02:03:02 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c04:e001:324:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1793631782; cv=none; b=WNeCh4FrsEA0xssfFLqDmeDq+h4+wmvPykOawbRk7VOXsiMouRvkdVCUmiJoBsSgZkgQBNe7SkyOXtWj6oZZGcoOAYXd/wiO9uEiOuPRbEJJ/xqJVqixVrVFbHGyVsc/jz/fX8nDZusgtzgYAHDigoTNS258bBgk9Q48CYIUdyKo6XKgT7sYVMZJfCUK9kj7q6izjwtjaJYLUH8t97dbt0pOGztkdfSKQsocCVZAdT3vHkpg0kIjGwWiQHw7izD8Rigugbe3gttlncKZQ2mR0Vza4nPi4zFPFzcF9jTGWMGhd1/vJOIziOvdcaJKVPbAWT/PlqdVeRIKbPFtPI9Nrg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1793631782; c=relaxed/relaxed; bh=wEPnWAoxjJOkMqmLZaf/U9t0SZ8y5Jr9Z0MZeAu0+Kc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=GTpmz6wBWZ3u7D1ZKLUN22e8oLWX/zUuefJTjQkKBdk3xN7d3rR3pz02yxCZHf3+ceiV0X/fU90mgTv7mzswpPsG2WbKYyc17twRnz3xWtN7BKqSXnuuRjHRHrI+d2D5/YNSD0FhrLoSjgFN/RTrtwBGphBXqwASlobT2ASZBehQwFJJIk31NHRL2ai/c24D+8YmK906hE0UJ3i8LkZ4QI093dISZKPFU1lW424qq+GVBXPm6uBPyeAaS5TyUdGdu1BDpL2EiEVrsXgGUZY4c++gronMsSnOVHaJRihKsCncwpMBZ/zz3byyGiCR5jO8XUEbWFEM2KNEUy7ydfxozA== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=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=Ht8IvPAW; dkim-atps=neutral; spf=pass (client-ip=2600:3c04:e001:324:0:1991:8:25; helo=tor.source.kernel.org; envelope-from=brauner@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ht8IvPAW; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c04:e001:324:0:1991:8:25; helo=tor.source.kernel.org; envelope-from=brauner@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [IPv6:2600:3c04:e001:324:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4jJFLs6xqNz2y7p for ; Tue, 03 Nov 2026 02:03:01 +1100 (AEDT) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 09B946022F; Mon, 2 Nov 2026 15:03:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 993D81F00A1C; Mon, 2 Nov 2026 15:02:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793631779; bh=wEPnWAoxjJOkMqmLZaf/U9t0SZ8y5Jr9Z0MZeAu0+Kc=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=Ht8IvPAW4mof6T3nGFwGbeVcaglGOl5mlj1CVqepMvEvFGz+8PKgoWLHL9+bJs9L7 53v2AQN+tBMkiLzgkeml7gGU+OB8Qm2CYhl3PTcPVXGN5OADSQkZJx/YRkKTS8i052 B5XpuKPR4lfAkar6kmgYTuxdr92sz56IZFvIKuF1+wppZQEyaU5GTMiW0VyOvuqR23 IRN/l76vPa7aqwWxy1j21njn6oagnIsGH3fmLYqTV/WDWTC2VC/h/xgzC3mEcucqJ4 Ga/T8yFZ4NOj4fhKsZdAeiJjq2g3w2I4SHbAhfhyRvJrP9tLFJXFNtfFbKv/jX0P31 EU9eTVpIjSIzQ== From: Christian Brauner Date: Mon, 02 Nov 2026 16:01:31 +0100 Subject: [PATCH RFC 04/22] m68k/bootinfo: let procfs copy out reads of /proc/bootinfo X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261102-work-procfs-arch-v1-4-c9492ab08480@kernel.org> References: <20261102-work-procfs-arch-v1-0-c9492ab08480@kernel.org> In-Reply-To: <20261102-work-procfs-arch-v1-0-c9492ab08480@kernel.org> To: linux-fsdevel@vger.kernel.org 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-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-um@lists.infradead.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, platform-driver-x86@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-sound@vger.kernel.org, netfilter-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, ibm-acpi-devel@lists.sourceforge.net, jfs-discussion@lists.sourceforge.net, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cifs@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-mm@kvack.org, linux-sh@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, sparclinux@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-doc@vger.kernel.org, linux-serial@vger.kernel.org, linux-atm-general@lists.sourceforge.net, Takashi Iwai , linux-input@vger.kernel.org, linux-raid@vger.kernel.org, linux-ext4@vger.kernel.org, linux-modules@vger.kernel.org, linux-debuggers@vger.kernel.org, "Christian Brauner (Amutable)" , Chuck Lever X-Mailer: b4 0.17-dev X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Implement ->proc_read_buf() so procfs copies what is read to userspace after it unpinned the entry. Signed-off-by: Christian Brauner (Amutable) --- arch/m68k/kernel/bootinfo_proc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/m68k/kernel/bootinfo_proc.c b/arch/m68k/kernel/bootinfo_proc.c index 857fa2aaa748..4936cf44e86a 100644 --- a/arch/m68k/kernel/bootinfo_proc.c +++ b/arch/m68k/kernel/bootinfo_proc.c @@ -19,15 +19,15 @@ static char bootinfo_tmp[1536] __initdata; static void *bootinfo_copy; static size_t bootinfo_size; -static ssize_t bootinfo_read(struct file *file, char __user *buf, +static ssize_t bootinfo_read(struct file *file, char *buf, size_t count, loff_t *ppos) { - return simple_read_from_buffer(buf, count, ppos, bootinfo_copy, + return memory_read_from_buffer(buf, count, ppos, bootinfo_copy, bootinfo_size); } static const struct proc_ops bootinfo_proc_ops = { - .proc_read = bootinfo_read, + .proc_read_buf = bootinfo_read, .proc_lseek = default_llseek, }; -- 2.53.0