Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755013Ab3IISRR (ORCPT ); Mon, 9 Sep 2013 14:17:17 -0400 Received: from mail-wg0-f47.google.com ([74.125.82.47]:44288 "EHLO mail-wg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754061Ab3IISRQ (ORCPT ); Mon, 9 Sep 2013 14:17:16 -0400 From: Tom Gundersen To: fuse-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org, Tom Gundersen , Kay Sievers , Miklos Szeredi Subject: [PATCH v2] cuse: creat 'dead' device node for on-demand module loading Date: Mon, 9 Sep 2013 20:18:27 +0200 Message-Id: <1378750707-1428-1-git-send-email-teg@jklm.no> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1378750298-965-1-git-send-email-teg@jklm.no> References: <1378750298-965-1-git-send-email-teg@jklm.no> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2359 Lines: 70 This allows udev (or more recently systemd-tmpfiles) to create /dev/cuse on boot, in the same way as /dev/fuse is currently created, and the corresponding module to be loaded on first access. The corresponding functionalty was introduced for fuse in commit 578454f. Signed-off-by: Tom Gundersen Cc: Kay Sievers Cc: Miklos Szeredi --- v2: also update Documentation/devices.txt (and pick a minor that is not taken) Documentation/devices.txt | 1 + fs/fuse/cuse.c | 5 ++++- include/linux/miscdevice.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/devices.txt b/Documentation/devices.txt index 23721d3..80b7241 100644 --- a/Documentation/devices.txt +++ b/Documentation/devices.txt @@ -414,6 +414,7 @@ Your cooperation is appreciated. 200 = /dev/net/tun TAP/TUN network device 201 = /dev/button/gulpb Transmeta GULP-B buttons 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control + 203 = /dev/cuse Cuse (character device in user-space) 204 = /dev/video/em8300 EM8300 DVD decoder control 205 = /dev/video/em8300_mv EM8300 DVD decoder video 206 = /dev/video/em8300_ma EM8300 DVD decoder audio diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index adbfd66..24da581 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -589,11 +589,14 @@ static struct attribute *cuse_class_dev_attrs[] = { ATTRIBUTE_GROUPS(cuse_class_dev); static struct miscdevice cuse_miscdev = { - .minor = MISC_DYNAMIC_MINOR, + .minor = CUSE_MINOR, .name = "cuse", .fops = &cuse_channel_fops, }; +MODULE_ALIAS_MISCDEV(CUSE_MINOR); +MODULE_ALIAS("devname:cuse"); + static int __init cuse_init(void) { int i, rc; diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index cb35835..f7eaf2d 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -31,6 +31,7 @@ #define I2O_MINOR 166 #define MICROCODE_MINOR 184 #define TUN_MINOR 200 +#define CUSE_MINOR 203 #define MWAVE_MINOR 219 /* ACP/Mwave Modem */ #define MPT_MINOR 220 #define MPT2SAS_MINOR 221 -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/