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
mkfs_usage()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
f2fs_parse_options(int argc,char * argv[])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
main(int argc,char * argv[])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