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>
30
#define BTRFS_PATH_NAME_MAX 4087
31
struct btrfs_ioctl_vol_args {
33
char name[BTRFS_PATH_NAME_MAX + 1];
35
#define BTRFS_IOCTL_MAGIC 0x94
36
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, struct btrfs_ioctl_vol_args)
38
static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test)
40
struct btrfs_ioctl_vol_args args;
44
if (argc != 3 || !streq(argv[1], "ready"))
47
fd = open("/dev/btrfs-control", O_RDWR);
51
strscpy(args.name, sizeof(args.name), argv[2]);
52
err = ioctl(fd, BTRFS_IOC_DEVICES_READY, &args);
57
udev_builtin_add_property(dev, test, "ID_BTRFS_READY", err == 0 ? "1" : "0");
61
const struct udev_builtin udev_builtin_btrfs = {
64
.help = "btrfs volume management",