return 0;
}
-static void print_qgroup_info(u64 objectid, struct btrfs_qgroup_info_item *info)
-{
- printf("%llu/%llu %lld %lld\n", objectid >> 48,
- objectid & ((1ll << 48) - 1),
- btrfs_stack_qgroup_info_referenced(info),
- btrfs_stack_qgroup_info_exclusive(info));
-}
-
-static int list_qgroups(int fd)
-{
- int ret;
- struct btrfs_ioctl_search_args args;
- struct btrfs_ioctl_search_key *sk = &args.key;
- struct btrfs_ioctl_search_header *sh;
- unsigned long off = 0;
- unsigned int i;
- struct btrfs_qgroup_info_item *info;
-
- memset(&args, 0, sizeof(args));
-
- /* search in the quota tree */
- sk->tree_id = BTRFS_QUOTA_TREE_OBJECTID;
-
- /*
- * set the min and max to backref keys. The search will
- * only send back this type of key now.
- */
- sk->max_type = BTRFS_QGROUP_INFO_KEY;
- sk->min_type = BTRFS_QGROUP_INFO_KEY;
- sk->max_objectid = 0;
- sk->max_offset = (u64)-1;
- sk->max_transid = (u64)-1;
-
- /* just a big number, doesn't matter much */
- sk->nr_items = 4096;
-
- while (1) {
- ret = ioctl(fd, BTRFS_IOC_TREE_SEARCH, &args);
- if (ret < 0)
- return ret;
-
- /* the ioctl returns the number of item it found in nr_items */
- if (sk->nr_items == 0)
- break;
-
- off = 0;
-
- /*
- * for each item, pull the key out of the header and then
- * read the root_ref item it contains
- */
- for (i = 0; i < sk->nr_items; i++) {
- sh = (struct btrfs_ioctl_search_header *)(args.buf +
- off);
- off += sizeof(*sh);
-
- if (sh->objectid != 0)
- goto done;
-
- if (sh->type != BTRFS_QGROUP_INFO_KEY)
- goto done;
-
- info = (struct btrfs_qgroup_info_item *)
- (args.buf + off);
- print_qgroup_info(sh->offset, info);
-
- off += sh->len;
-
- /*
- * record the mins in sk so we can make sure the
- * next search doesn't repeat this root
- */
- sk->min_offset = sh->offset;
- }
- sk->nr_items = 4096;
- /*
- * this iteration is done, step forward one qgroup for the next
- * ioctl
- */
- if (sk->min_offset < (u64)-1)
- sk->min_offset++;
- else
- break;
- }
-
-done:
- return ret;
-}
-
static int parse_limit(const char *p, unsigned long long *s)
{
char *endptr;
}
static const char * const cmd_qgroup_show_usage[] = {
- "btrfs qgroup show <path>",
- "Show all subvolume quota groups.",
+ "btrfs qgroup show -pcreFf "
+ "[--sort=qgroupid,rfer,excl,max_rfer,max_excl] <path>",
+ "Show subvolume quota groups.",
+ "-p print parent qgroup id",
+ "-c print child qgroup id",
+ "-r print max referenced size of qgroup",
+ "-e print max exclusive size of qgroup",
+ "-F list all qgroups which impact the given path"
+ "(include ancestral qgroups)",
+ "-f list all qgroups which impact the given path"
+ "(exclude ancestral qgroups)",
+ "--sort=qgroupid,rfer,excl,max_rfer,max_excl",
+ " list qgroups in order of qgroupid,"
+ "rfer,max_rfer or max_excl",
+ " you can use '+' or '-' in front of each item.",
+ " (+:ascending, -:descending, ascending default)",
NULL
};
static int cmd_qgroup_show(int argc, char **argv)
{
+ char *path;
int ret = 0;
int fd;
int e;
- char *path = argv[1];
DIR *dirstream = NULL;
+ int c;
+ u64 qgroupid;
+ int filter_flag = 0;
+
+ struct btrfs_qgroup_comparer_set *comparer_set;
+ struct btrfs_qgroup_filter_set *filter_set;
+ filter_set = btrfs_qgroup_alloc_filter_set();
+ comparer_set = btrfs_qgroup_alloc_comparer_set();
+ struct option long_options[] = {
+ {"sort", 1, NULL, 'S'},
+ {0, 0, 0, 0}
+ };
- if (check_argc_exact(argc, 2))
+ optind = 1;
+ while (1) {
+ c = getopt_long(argc, argv, "pcreFf",
+ long_options, NULL);
+ if (c < 0)
+ break;
+ switch (c) {
+ case 'p':
+ btrfs_qgroup_setup_print_column(
+ BTRFS_QGROUP_PARENT);
+ break;
+ case 'c':
+ btrfs_qgroup_setup_print_column(
+ BTRFS_QGROUP_CHILD);
+ break;
+ case 'r':
+ btrfs_qgroup_setup_print_column(
+ BTRFS_QGROUP_MAX_RFER);
+ break;
+ case 'e':
+ btrfs_qgroup_setup_print_column(
+ BTRFS_QGROUP_MAX_EXCL);
+ break;
+ case 'F':
+ filter_flag |= 0x1;
+ break;
+ case 'f':
+ filter_flag |= 0x2;
+ break;
+ case 'S':
+ ret = btrfs_qgroup_parse_sort_string(optarg,
+ &comparer_set);
+ if (ret)
+ usage(cmd_qgroup_show_usage);
+ break;
+ default:
+ usage(cmd_qgroup_show_usage);
+ }
+ }
+ if (check_argc_exact(argc - optind, 1))
usage(cmd_qgroup_show_usage);
+ path = argv[optind];
fd = open_file_or_dir(path, &dirstream);
if (fd < 0) {
fprintf(stderr, "ERROR: can't access '%s'\n", path);
return 1;
}
- ret = list_qgroups(fd);
+ if (filter_flag) {
+ qgroupid = btrfs_get_path_rootid(fd);
+ if (filter_flag & 0x1)
+ btrfs_qgroup_setup_filter(&filter_set,
+ BTRFS_QGROUP_FILTER_ALL_PARENT,
+ qgroupid);
+ if (filter_flag & 0x2)
+ btrfs_qgroup_setup_filter(&filter_set,
+ BTRFS_QGROUP_FILTER_PARENT,
+ qgroupid);
+ }
+ ret = btrfs_show_qgroups(fd, filter_set, comparer_set);
e = errno;
close_file_or_dir(fd, dirstream);
if (ret < 0)
projects / platform / upstream / btrfs-progs.git / blobdiff