2 * Copyright (C) 2012 STRATO. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
19 #include <sys/ioctl.h>
28 static const char * const quota_cmd_group_usage[] = {
29 "btrfs quota <command> [options] <path>",
33 int quota_ctl(int cmd, int argc, char **argv)
39 struct btrfs_ioctl_quota_ctl_args args;
41 if (check_argc_exact(argc, 2))
44 memset(&args, 0, sizeof(args));
47 fd = open_file_or_dir(path);
49 fprintf(stderr, "ERROR: can't access '%s'\n", path);
53 ret = ioctl(fd, BTRFS_IOC_QUOTA_CTL, &args);
57 fprintf(stderr, "ERROR: quota command failed: %s\n",
64 static const char * const cmd_quota_enable_usage[] = {
65 "btrfs quota enable <path>",
66 "Enable subvolume quota support for a filesystem.",
70 static int cmd_quota_enable(int argc, char **argv)
72 int ret = quota_ctl(BTRFS_QUOTA_CTL_ENABLE, argc, argv);
74 usage(cmd_quota_enable_usage);
78 static const char * const cmd_quota_disable_usage[] = {
79 "btrfs quota disable <path>",
80 "Disable subvolume quota support for a filesystem.",
84 static int cmd_quota_disable(int argc, char **argv)
86 int ret = quota_ctl(BTRFS_QUOTA_CTL_DISABLE, argc, argv);
88 usage(cmd_quota_disable_usage);
92 static const char * const cmd_quota_rescan_usage[] = {
93 "btrfs quota rescan <path>",
94 "Rescan the subvolume for a changed quota setting.",
98 static int cmd_quota_rescan(int argc, char **argv)
100 int ret = quota_ctl(BTRFS_QUOTA_CTL_RESCAN, argc, argv);
102 usage(cmd_quota_rescan_usage);
106 const struct cmd_group quota_cmd_group = {
107 quota_cmd_group_usage, NULL, {
108 { "enable", cmd_quota_enable, cmd_quota_enable_usage, NULL, 0 },
109 { "disable", cmd_quota_disable, cmd_quota_disable_usage, 0, 0 },
110 { "rescan", cmd_quota_rescan, cmd_quota_rescan_usage, NULL, 0 },
115 int cmd_quota(int argc, char **argv)
117 return handle_command_group("a_cmd_group, argc, argv);