1 /** 2 * f2fs_format.c 3 * 4 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 5 * http://www.samsung.com/ 6 * 7 * Dual licensed under the GPL or LGPL version 2 licenses. 8 */ 9 #define _LARGEFILE64_SOURCE 10 11 #include <stdio.h> 12 #include <stdlib.h> 13 #include <fcntl.h> 14 #include <string.h> 15 #include <unistd.h> 16 #include <sys/stat.h> 17 #include <sys/mount.h> 18 #include <time.h> 19 //#include <linux/fs.h> 20 #include <uuid/uuid.h> 21 22 #include "f2fs_fs.h" 23 #include "f2fs_format_utils.h" 24 25 extern struct f2fs_configuration config; 26 27 static void mkfs_usage() 28 { 29 MSG(0, "\nUsage: mkfs.f2fs [options] device [sectors]\n"); 30 MSG(0, "[options]:\n"); 31 MSG(0, " -a heap-based allocation [default:1]\n"); 32 MSG(0, " -d debug level [default:0]\n"); 33 MSG(0, " -e [extension list] e.g. \"mp3,gif,mov\"\n"); 34 MSG(0, " -l label\n"); 35 MSG(0, " -o overprovision ratio [default:5]\n"); 36 MSG(0, " -s # of segments per section [default:1]\n"); 37 MSG(0, " -z # of sections per zone [default:1]\n"); 38 MSG(0, " -t 0: nodiscard, 1: discard [default:1]\n"); 39 MSG(0, "sectors: number of sectors. [default: determined by device size]\n"); 40 exit(1); 41 } 42 43 static void f2fs_parse_options(int argc, char *argv[]) 44 { 45 static const char *option_string = "a:d:e:l:o:s:z:t:"; 46 int32_t option=0; 47 48 while ((option = getopt(argc,argv,option_string)) != EOF) { 49 switch (option) { 50 case 'a': 51 config.heap = atoi(optarg); 52 if (config.heap == 0) 53 MSG(0, "Info: Disable heap-based policy\n"); 54 break; 55 case 'd': 56 config.dbg_lv = atoi(optarg); 57 MSG(0, "Info: Debug level = %d\n", config.dbg_lv); 58 break; 59 case 'e': 60 config.extension_list = strdup(optarg); 61 MSG(0, "Info: Add new extension list\n"); 62 break; 63 case 'l': /*v: volume label */ 64 if (strlen(optarg) > 512) { 65 MSG(0, "Error: Volume Label should be less than\ 66 512 characters\n"); 67 mkfs_usage(); 68 } 69 config.vol_label = optarg; 70 MSG(0, "Info: Label = %s\n", config.vol_label); 71 break; 72 case 'o': 73 config.overprovision = atoi(optarg); 74 MSG(0, "Info: Overprovision ratio = %u%%\n", 75 atoi(optarg)); 76 break; 77 case 's': 78 config.segs_per_sec = atoi(optarg); 79 MSG(0, "Info: Segments per section = %d\n", 80 atoi(optarg)); 81 break; 82 case 'z': 83 config.secs_per_zone = atoi(optarg); 84 MSG(0, "Info: Sections per zone = %d\n", atoi(optarg)); 85 break; 86 case 't': 87 config.trim = atoi(optarg); 88 MSG(0, "Info: Trim is %s\n", config.trim ? "enabled": "disabled"); 89 break; 90 default: 91 MSG(0, "\tError: Unknown option %c\n",option); 92 mkfs_usage(); 93 break; 94 } 95 } 96 97 if (optind >= argc) { 98 MSG(0, "\tError: Device not specified\n"); 99 mkfs_usage(); 100 } 101 config.device_name = argv[optind]; 102 103 if ((optind + 1) < argc) { 104 /* We have a sector count. */ 105 config.total_sectors = atoll(argv[optind+1]); 106 MSG(0, "\ttotal_sectors=%08"PRIx64" (%s bytes)\n", 107 config.total_sectors, argv[optind+1]); 108 } 109 110 config.reserved_segments = 111 (2 * (100 / config.overprovision + 1) + 6) 112 * config.segs_per_sec; 113 config.segs_per_zone = config.segs_per_sec * config.secs_per_zone; 114 } 115 116 int main(int argc, char *argv[]) 117 { 118 MSG(0, "\n\tF2FS-tools: mkfs.f2fs Ver: %s (%s)\n\n", 119 F2FS_TOOLS_VERSION, 120 F2FS_TOOLS_DATE); 121 f2fs_init_configuration(&config); 122 123 f2fs_parse_options(argc, argv); 124 125 if (f2fs_dev_is_umounted(&config) < 0) 126 return -1; 127 128 if (f2fs_get_device_info(&config) < 0) 129 return -1; 130 131 if (f2fs_format_device() < 0) 132 return -1; 133 134 f2fs_finalize_device(&config); 135 136 MSG(0, "Info: format successful\n"); 137 138 return 0; 139 } 140
