#include "commands.h"
#include "qgroup.h"
#include "utils.h"
+#include "help.h"
static const char * const qgroup_cmd_group_usage[] = {
"btrfs qgroup <command> [options] <path>",
}
static const char * const cmd_qgroup_show_usage[] = {
- "btrfs qgroup show -pcreFf "
- "[--sort=qgroupid,rfer,excl,max_rfer,max_excl] <path>",
+ "btrfs qgroup show [options] <path>",
"Show subvolume quota groups.",
"-p print parent qgroup id",
"-c print child qgroup id",
" list qgroups sorted by specified items",
" you can use '+' or '-' in front of each item.",
" (+:ascending, -:descending, ascending default)",
+ "--sync force sync of the filesystem before getting info",
NULL
};
u64 qgroupid;
int filter_flag = 0;
unsigned unit_mode;
+ int sync = 0;
struct btrfs_qgroup_comparer_set *comparer_set;
struct btrfs_qgroup_filter_set *filter_set;
while (1) {
int c;
+ enum {
+ GETOPT_VAL_SORT = 256,
+ GETOPT_VAL_SYNC
+ };
static const struct option long_options[] = {
- {"sort", required_argument, NULL, 'S'},
+ {"sort", required_argument, NULL, GETOPT_VAL_SORT},
+ {"sync", no_argument, NULL, GETOPT_VAL_SYNC},
{ NULL, 0, NULL, 0 }
};
case 'f':
filter_flag |= 0x2;
break;
- case 'S':
+ case GETOPT_VAL_SORT:
ret = btrfs_qgroup_parse_sort_string(optarg,
&comparer_set);
if (ret)
usage(cmd_qgroup_show_usage);
break;
+ case GETOPT_VAL_SYNC:
+ sync = 1;
+ break;
default:
usage(cmd_qgroup_show_usage);
}
return 1;
}
+ if (sync) {
+ ret = ioctl(fd, BTRFS_IOC_SYNC);
+ if (ret < 0)
+ warning("sync ioctl failed on '%s': %s", path,
+ strerror(errno));
+ }
+
if (filter_flag) {
ret = lookup_path_rootid(fd, &qgroupid);
if (ret < 0) {
qgroupid);
}
ret = btrfs_show_qgroups(fd, filter_set, comparer_set);
- close_file_or_dir(fd, dirstream);
- if (ret < 0)
+ if (ret == -ENOENT)
+ error("can't list qgroups: quotas not enabled");
+ else if (ret < 0)
error("can't list qgroups: %s", strerror(-ret));
+ close_file_or_dir(fd, dirstream);
out:
return !!ret;