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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ju9Cdiwd; 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 D9C5F60C54DF; Wed, 4 Nov 2026 19:45:38 +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=ju9Cdiwd Received: by smtp.kernel.org (Postfix) with ESMTPSA id A19331F00919; Wed, 4 Nov 2026 19:45:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793821538; bh=oFfWvBKtBhqs+rwLAKfNEZHrMKd6RrVgssTSPyI9nB8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ju9Cdiwdukzo03f6p3hrq4bQpCrNgWvbzSyS1vs9NG/W3HaXXkao3M2u4LfrHoe8e wxtviWGSsoNjRsbvKzRys/CwzzFLfUcvMKaGQhYPmPxrbu1L7QiWnV3ZTrh/R1Otfg qrZBJdrHCIeziUsqnpGD0JFkLrcuH8m4/I4Ww7FZSJ/tfeBBZ2ylMzghmAuc9eeX6s vgBVV5T3IgnlsvU9YQnkv2d3jFbbKDOzj/iykYH1zv74/Pa9kQYvwQBnjIDHwdeuOQ S5F8Z7xCaT1zZASn9AYJ/xAtcbrp0J7I7xiLDkK+QT5iUpaPPLtpiC82DCigeWcdXX vjvXnJgaA/cBQ== From: Christian Brauner 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 Subject: [PATCH RESEND v2 13/26] scsi: sg: let procfs own the seq_file of allow_dio and def_reserved_size Date: Wed, 4 Nov 2026 20:45:24 +0100 Message-ID: <20261104-work-procfs-drivers-v2-13-245e54e87116@kernel.org> In-Reply-To: <20261104-work-procfs-drivers-v2-0-245e54e87116@kernel.org> References: <20261104-work-procfs-drivers-v2-0-245e54e87116@kernel.org> X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.17-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=3098; i=brauner@kernel.org; h=from:subject:message-id; bh=VSyXtwS/L1yz+NXwjilFwHBHf/9gGBvzhq16zAIuGuA=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWS97mpK3v7SU35CpJ+xYm16aqH2yss8t52nRXwy2L6hU PiyM6N8RykLgxgXg6yYIotDu0m43HKeis1GmRowc1iZQIYwcHEKwEScShgZ/oS0JG41sBdwnT31 V9JTpX/eEnvWXFfxXHvv8uNV8wXXGzL8ZGzdvX7L3xQtdoGX5tttZ9355tPw6sDfkq152YVBvd6 fuAE= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Content-Transfer-Encoding: 8bit Pass the integer they show as the data of the entry and declare the show function, procfs then opens and frees the seq_file. That makes the open functions unnecessary. Signed-off-by: Christian Brauner (Amutable) --- drivers/scsi/sg.c | 28 ++++++---------------------- 1 file changed, 6 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 6551f1284d44..fb3ab74e8727 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -2288,26 +2288,18 @@ sg_get_dev(int dev) #ifdef CONFIG_SCSI_PROC_FS static int sg_proc_seq_show_int(struct seq_file *s, void *v); -static int sg_proc_single_open_adio(struct inode *inode, struct file *file); static ssize_t sg_proc_write_adio(struct file *filp, const char __user *buffer, size_t count, loff_t *off); static const struct proc_ops adio_proc_ops = { - .proc_open = sg_proc_single_open_adio, - .proc_read = seq_read, - .proc_lseek = seq_lseek, + .proc_show = sg_proc_seq_show_int, .proc_write = sg_proc_write_adio, - .proc_release = single_release, }; -static int sg_proc_single_open_dressz(struct inode *inode, struct file *file); static ssize_t sg_proc_write_dressz(struct file *filp, const char __user *buffer, size_t count, loff_t *off); static const struct proc_ops dressz_proc_ops = { - .proc_open = sg_proc_single_open_dressz, - .proc_read = seq_read, - .proc_lseek = seq_lseek, + .proc_show = sg_proc_seq_show_int, .proc_write = sg_proc_write_dressz, - .proc_release = single_release, }; static int sg_proc_seq_show_version(struct seq_file *s, void *v); @@ -2348,9 +2340,11 @@ sg_proc_init(void) if (!p) return 1; - proc_create("allow_dio", S_IRUGO | S_IWUSR, p, &adio_proc_ops); + proc_create_data("allow_dio", S_IRUGO | S_IWUSR, p, &adio_proc_ops, + &sg_allow_dio); proc_create_seq("debug", S_IRUGO, p, &debug_seq_ops); - proc_create("def_reserved_size", S_IRUGO | S_IWUSR, p, &dressz_proc_ops); + proc_create_data("def_reserved_size", S_IRUGO | S_IWUSR, p, + &dressz_proc_ops, &def_reserved_size); proc_create_single("device_hdr", S_IRUGO, p, sg_proc_seq_show_devhdr); proc_create_seq("devices", S_IRUGO, p, &dev_seq_ops); proc_create_seq("device_strs", S_IRUGO, p, &devstrs_seq_ops); @@ -2365,11 +2359,6 @@ static int sg_proc_seq_show_int(struct seq_file *s, void *v) return 0; } -static int sg_proc_single_open_adio(struct inode *inode, struct file *file) -{ - return single_open(file, sg_proc_seq_show_int, &sg_allow_dio); -} - static ssize_t sg_proc_write_adio(struct file *filp, const char __user *buffer, size_t count, loff_t *off) @@ -2386,11 +2375,6 @@ sg_proc_write_adio(struct file *filp, const char __user *buffer, return count; } -static int sg_proc_single_open_dressz(struct inode *inode, struct file *file) -{ - return single_open(file, sg_proc_seq_show_int, &def_reserved_size); -} - static ssize_t sg_proc_write_dressz(struct file *filp, const char __user *buffer, size_t count, loff_t *off) -- 2.53.0