2 This file is part of systemd.
4 Copyright 2012 Kay Sievers <kay@vrfy.org>
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/ioctl.h>
28 #ifdef HAVE_LINUX_BTRFS_H
29 #include <linux/btrfs.h>
35 static int builtin_btrfs(struct udev_device
*dev
, int argc
, char *argv
[], bool test
) {
36 struct btrfs_ioctl_vol_args args
= {};
37 _cleanup_close_
int fd
= -1;
40 if (argc
!= 3 || !streq(argv
[1], "ready"))
43 fd
= open("/dev/btrfs-control", O_RDWR
|O_CLOEXEC
);
47 strscpy(args
.name
, sizeof(args
.name
), argv
[2]);
48 err
= ioctl(fd
, BTRFS_IOC_DEVICES_READY
, &args
);
52 udev_builtin_add_property(dev
, test
, "ID_BTRFS_READY", one_zero(err
== 0));
56 const struct udev_builtin udev_builtin_btrfs
= {
59 .help
= "btrfs volume management",