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charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261102-work-procfs-drivers-v1-12-a994bd4d3b1a@kernel.org> References: <20261102-work-procfs-drivers-v1-0-a994bd4d3b1a@kernel.org> In-Reply-To: <20261102-work-procfs-drivers-v1-0-a994bd4d3b1a@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-Developer-Signature: v=1; a=openpgp-sha256; l=3098; i=brauner@kernel.org; h=from:subject:message-id; bh=i7XPA6oQ9lTisv2fJhwkVTww2SSinfY9aqbIviKN0Rk=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWS9WG6Qf8grL/vRBPOFfc2hW3RiHI9mZiQELndpn9khL RHPWBrfUcrCIMbFICumyOLQbhIut5ynYrNRpgbMHFYmkCEMXJwCMBH+LIZ/Znxfdj0svxz/x0KW cdfJXz/uVP2z5WL92Rx27MvazyK/WhgZXtf0pV+c73nSVO8zu/lFWSMbjbVtv7ecN4xQ/S9ns82 bDwA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 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 3f9e08725602..c7386fbe5580 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -2287,26 +2287,18 @@ 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); @@ -2347,9 +2339,11 @@ 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); @@ -2364,11 +2358,6 @@ 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) @@ -2385,11 +2374,6 @@ 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