mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-29 01:22:13 +00:00
46e3b8087b
The definition of the function open_file_or_dir() is moved from common.c to utils.c in order to be able to share some common code between scrub and the device stats in the following step. That common code uses open_file_or_dir(). Since open_file_or_dir() makes use of the function dirfd(3), the required XOPEN version was raised from 6 to 7. Signed-off-by: Anand Jain <anand.jain@oracle.com> Original-Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/*
|
|
* Copyright (C) 2012 STRATO. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <unistd.h>
|
|
|
|
#include "ctree.h"
|
|
#include "ioctl.h"
|
|
|
|
#include "commands.h"
|
|
#include "utils.h"
|
|
|
|
static const char * const quota_cmd_group_usage[] = {
|
|
"btrfs quota <command> [options] <path>",
|
|
NULL
|
|
};
|
|
|
|
int quota_ctl(int cmd, int argc, char **argv)
|
|
{
|
|
int ret = 0;
|
|
int fd;
|
|
int e;
|
|
char *path = argv[1];
|
|
struct btrfs_ioctl_quota_ctl_args args;
|
|
|
|
if (check_argc_exact(argc, 2))
|
|
return -1;
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
args.cmd = cmd;
|
|
|
|
fd = open_file_or_dir(path);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "ERROR: can't access '%s'\n", path);
|
|
return 12;
|
|
}
|
|
|
|
ret = ioctl(fd, BTRFS_IOC_QUOTA_CTL, &args);
|
|
e = errno;
|
|
close(fd);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "ERROR: quota command failed: %s\n",
|
|
strerror(e));
|
|
return 30;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const char * const cmd_quota_enable_usage[] = {
|
|
"btrfs quota enable <path>",
|
|
"Enable subvolume quota support for a filesystem.",
|
|
NULL
|
|
};
|
|
|
|
static int cmd_quota_enable(int argc, char **argv)
|
|
{
|
|
int ret = quota_ctl(BTRFS_QUOTA_CTL_ENABLE, argc, argv);
|
|
if (ret < 0)
|
|
usage(cmd_quota_enable_usage);
|
|
return ret;
|
|
}
|
|
|
|
static const char * const cmd_quota_disable_usage[] = {
|
|
"btrfs quota disable <path>",
|
|
"Disable subvolume quota support for a filesystem.",
|
|
NULL
|
|
};
|
|
|
|
static int cmd_quota_disable(int argc, char **argv)
|
|
{
|
|
int ret = quota_ctl(BTRFS_QUOTA_CTL_DISABLE, argc, argv);
|
|
if (ret < 0)
|
|
usage(cmd_quota_disable_usage);
|
|
return ret;
|
|
}
|
|
|
|
static const char * const cmd_quota_rescan_usage[] = {
|
|
"btrfs quota rescan <path>",
|
|
"Rescan the subvolume for a changed quota setting.",
|
|
NULL
|
|
};
|
|
|
|
static int cmd_quota_rescan(int argc, char **argv)
|
|
{
|
|
int ret = quota_ctl(BTRFS_QUOTA_CTL_RESCAN, argc, argv);
|
|
if (ret < 0)
|
|
usage(cmd_quota_rescan_usage);
|
|
return ret;
|
|
}
|
|
|
|
const struct cmd_group quota_cmd_group = {
|
|
quota_cmd_group_usage, NULL, {
|
|
{ "enable", cmd_quota_enable, cmd_quota_enable_usage, NULL, 0 },
|
|
{ "disable", cmd_quota_disable, cmd_quota_disable_usage, 0, 0 },
|
|
{ "rescan", cmd_quota_rescan, cmd_quota_rescan_usage, NULL, 0 },
|
|
{ 0, 0, 0, 0, 0 }
|
|
}
|
|
};
|
|
|
|
int cmd_quota(int argc, char **argv)
|
|
{
|
|
return handle_command_group("a_cmd_group, argc, argv);
|
|
}
|