1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 28 unchanged lines hidden (view full) --- 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41#if 0 42static char sccsid[] = "@(#)tunefs.c 8.2 (Berkeley) 4/19/94"; 43#endif 44static const char rcsid[] = |
45 "$FreeBSD: head/sbin/tunefs/tunefs.c 69829 2000-12-10 20:59:30Z charnier $"; |
46#endif /* not lint */ 47 48/* 49 * tunefs: change layout parameters to an existing file system. 50 */ 51#include <sys/param.h> 52#include <sys/mount.h> 53#include <sys/stat.h> --- 29 unchanged lines hidden (view full) --- 83void usage __P((void)); 84void printfs __P((void)); 85 86int 87main(argc, argv) 88 int argc; 89 char *argv[]; 90{ |
91 char *special, *name; |
92 struct stat st; |
93 int Aflag = 0, active = 0; |
94 int aflag = 0, dflag = 0, eflag = 0, mflag = 0; 95 int nflag = 0, oflag = 0, pflag = 0; 96 int avalue = 0, dvalue = 0, evalue = 0, mvalue = 0, ovalue = 0; 97 char *nvalue = NULL; |
98 struct fstab *fs; 99 char *chg[2], device[MAXPATHLEN]; 100 struct ufs_args args; 101 struct statfs stfs; 102 int found_arg, ch; 103 104 if (argc < 3) 105 usage(); |
106 found_arg = 0; /* at least one arg is required */ 107 while ((ch = getopt(argc, argv, "Aa:d:e:m:n:o:p")) != -1) 108 switch (ch) { 109 case 'A': 110 found_arg = 1; 111 Aflag++; 112 break; 113 case 'a': 114 found_arg = 1; 115 name = "maximum contiguous block count"; |
116 avalue = atoi(optarg); 117 if (avalue < 1) |
118 errx(10, "%s must be >= 1 (was %s)", name, optarg); |
119 aflag = 1; |
120 break; 121 case 'd': 122 found_arg = 1; 123 name = "rotational delay between contiguous blocks"; |
124 dvalue = atoi(optarg); 125 dflag = 1; |
126 break; 127 case 'e': 128 found_arg = 1; 129 name = "maximum blocks per file in a cylinder group"; |
130 evalue = atoi(optarg); 131 if (evalue < 1) |
132 errx(10, "%s must be >= 1 (was %s)", name, optarg); |
133 eflag = 1; |
134 break; 135 case 'm': 136 found_arg = 1; 137 name = "minimum percentage of free space"; |
138 mvalue = atoi(optarg); 139 if (mvalue < 0 || mvalue > 99) |
140 errx(10, "bad %s (%s)", name, optarg); |
141 mflag = 1; |
142 break; 143 case 'n': 144 found_arg = 1; 145 name = "soft updates"; |
146 nvalue = optarg; 147 if (strcmp(nvalue, "enable") && strcmp(nvalue, "disable")) { |
148 errx(10, "bad %s (options are %s)", 149 name, "`enable' or `disable'"); 150 } |
151 nflag = 1; |
152 break; 153 case 'o': 154 found_arg = 1; 155 name = "optimization preference"; 156 chg[FS_OPTSPACE] = "space"; 157 chg[FS_OPTTIME] = "time"; 158 if (strcmp(optarg, chg[FS_OPTSPACE]) == 0) |
159 ovalue = FS_OPTSPACE; |
160 else if (strcmp(optarg, chg[FS_OPTTIME]) == 0) |
161 ovalue = FS_OPTTIME; |
162 else 163 errx(10, "bad %s (options are `space' or `time')", 164 name); |
165 oflag = 1; |
166 break; 167 case 'p': |
168 pflag = 1; 169 break; |
170 default: 171 usage(); 172 } 173 argc -= optind; 174 argv += optind; 175 176 if (found_arg == 0 || argc != 1) 177 usage(); 178 |
179 special = argv[0]; 180 fs = getfsfile(special); 181 if (fs) { 182 if (statfs(special, &stfs) == 0 && 183 strcmp(special, stfs.f_mntonname) == 0) { 184 active = 1; 185 } 186 special = fs->fs_spec; 187 } 188again: 189 if (stat(special, &st) < 0) { 190 if (*special != '/') { 191 if (*special == 'r') 192 special++; 193 (void)sprintf(device, "%s/%s", _PATH_DEV, special); 194 special = device; 195 goto again; 196 } 197 err(1, "%s", special); 198 } 199 if ((st.st_mode & S_IFMT) != S_IFBLK && 200 (st.st_mode & S_IFMT) != S_IFCHR) 201 errx(10, "%s: not a block or character device", special); 202 getsb(&sblock, special); 203 204 if (pflag) { 205 printfs(); 206 exit(0); 207 } 208 if (aflag) { 209 name = "maximum contiguous block count"; 210 if (sblock.fs_maxcontig == avalue) { 211 warnx("%s remains unchanged as %d", name, avalue); 212 } 213 else { 214 warnx("%s changes from %d to %d", 215 name, sblock.fs_maxcontig, avalue); 216 sblock.fs_maxcontig = avalue; 217 } 218 } 219 if (dflag) { 220 name = "rotational delay between contiguous blocks"; 221 if (sblock.fs_rotdelay == dvalue) { 222 warnx("%s remains unchanged as %dms", name, dvalue); 223 } 224 else { 225 warnx("%s changes from %dms to %dms", 226 name, sblock.fs_rotdelay, dvalue); 227 sblock.fs_rotdelay = dvalue; 228 } 229 } 230 if (eflag) { 231 name = "maximum blocks per file in a cylinder group"; 232 if (sblock.fs_maxbpg == evalue) { 233 warnx("%s remains unchanged as %d", name, evalue); 234 } 235 else { 236 warnx("%s changes from %d to %d", 237 name, sblock.fs_maxbpg, evalue); 238 sblock.fs_maxbpg = evalue; 239 } 240 } 241 if (mflag) { 242 name = "minimum percentage of free space"; 243 if (sblock.fs_minfree == mvalue) { 244 warnx("%s remains unchanged as %d%%", name, mvalue); 245 } 246 else { 247 warnx("%s changes from %d%% to %d%%", 248 name, sblock.fs_minfree, mvalue); 249 sblock.fs_minfree = mvalue; 250 if (mvalue >= MINFREE && sblock.fs_optim == FS_OPTSPACE) 251 warnx(OPTWARN, "time", ">=", MINFREE); 252 if (mvalue < MINFREE && sblock.fs_optim == FS_OPTTIME) 253 warnx(OPTWARN, "space", "<", MINFREE); 254 } 255 } 256 if (nflag) { 257 name = "soft updates"; 258 if (strcmp(nvalue, "enable") == 0) { 259 if ( sblock.fs_flags & FS_DOSOFTDEP ) { 260 warnx("%s remains unchanged as enabled", name); 261 } else { 262 sblock.fs_flags |= FS_DOSOFTDEP; 263 warnx("%s set", name); 264 } 265 } else if (strcmp(nvalue, "disable") == 0) { 266 if ((~sblock.fs_flags & FS_DOSOFTDEP) == FS_DOSOFTDEP) { 267 warnx("%s remains unchanged as disabled", name); 268 } else { 269 sblock.fs_flags &= ~FS_DOSOFTDEP; 270 warnx("%s cleared", name); 271 } 272 } 273 } 274 if (oflag) { 275 name = "optimization preference"; 276 chg[FS_OPTSPACE] = "space"; 277 chg[FS_OPTTIME] = "time"; 278 if (sblock.fs_optim == ovalue) { 279 warnx("%s remains unchanged as %s", name, chg[ovalue]); 280 } 281 else { 282 warnx("%s changes from %s to %s", 283 name, chg[sblock.fs_optim], chg[ovalue]); 284 sblock.fs_optim = ovalue; 285 if (sblock.fs_minfree >= MINFREE && 286 ovalue == FS_OPTSPACE) 287 warnx(OPTWARN, "time", ">=", MINFREE); 288 if (sblock.fs_minfree < MINFREE && 289 ovalue == FS_OPTTIME) 290 warnx(OPTWARN, "space", "<", MINFREE); 291 } 292 } 293 |
294 putsb(&sblock, special, Aflag); 295 if (active) { 296 bzero(&args, sizeof(args)); 297 if (mount("ufs", fs->fs_file, 298 stfs.f_flags | MNT_UPDATE | MNT_RELOAD, &args) < 0) 299 err(9, "%s: reload", special); 300 warnx("file system reloaded"); 301 } 302 exit(0); 303} 304 305void 306usage() 307{ 308 fprintf(stderr, "%s\n%s\n%s\n", 309"usage: tunefs [-A] [-a maxcontig] [-d rotdelay] [-e maxbpg] [-m minfree]", |
310" [-p] [-n enable | disable] [-o space | time]", |
311" special | filesystem"); 312 exit(2); 313} 314 315void 316getsb(fs, file) 317 register struct fs *fs; 318 char *file; --- 91 unchanged lines hidden --- |