diff options
Diffstat (limited to 'mkfs.c')
| -rw-r--r-- | mkfs.c | 13 |
1 files changed, 6 insertions, 7 deletions
@@ -290,9 +290,7 @@ static int create_data_reloc_tree(struct btrfs_trans_handle *trans, return 0; } - -static void print_usage(void) __attribute__((noreturn)); -static void print_usage(void) +static void print_usage(int ret) { fprintf(stderr, "usage: mkfs.btrfs [options] dev [ dev ... ]\n"); fprintf(stderr, "options:\n"); @@ -313,7 +311,7 @@ static void print_usage(void) fprintf(stderr, "\t-q|--quiet no messages except errors\n"); fprintf(stderr, "\t-V|--version print the mkfs.btrfs version and exit\n"); fprintf(stderr, "%s\n", PACKAGE_STRING); - exit(1); + exit(ret); } static void print_version(void) __attribute__((noreturn)); @@ -341,7 +339,6 @@ static u64 parse_profile(char *s) return 0; } else { fprintf(stderr, "Unknown profile %s\n", s); - print_usage(); } /* not reached */ return 0; @@ -1222,6 +1219,7 @@ int main(int ac, char **av) { "features", required_argument, NULL, 'O' }, { "uuid", required_argument, NULL, 'U' }, { "quiet", 0, NULL, 'q' }, + { "help", no_argument, NULL, GETOPT_VAL_HELP }, { NULL, 0, NULL, 0} }; @@ -1302,8 +1300,9 @@ int main(int ac, char **av) case 'q': verbose = 0; break; + case GETOPT_VAL_HELP: default: - print_usage(); + print_usage(c != GETOPT_VAL_HELP); } } sectorsize = max(sectorsize, (u32)sysconf(_SC_PAGESIZE)); @@ -1312,7 +1311,7 @@ int main(int ac, char **av) saved_optind = optind; dev_cnt = ac - optind; if (dev_cnt == 0) - print_usage(); + print_usage(1); if (source_dir_set && dev_cnt > 1) { fprintf(stderr, |