TRIM support
[dragonfly.git] / sbin / newfs / newfs.c
CommitLineData
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1/*
2 * Copyright (c) 1983, 1989, 1993, 1994
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
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 *
33 * @(#) Copyright (c) 1983, 1989, 1993, 1994 The Regents of the University of California. All rights reserved.
34 * @(#)newfs.c 8.13 (Berkeley) 5/1/95
35 * $FreeBSD: src/sbin/newfs/newfs.c,v 1.30.2.9 2003/05/13 12:03:55 joerg Exp $
5dde079e 36 * $DragonFly: src/sbin/newfs/newfs.c,v 1.17 2007/06/19 19:18:20 dillon Exp $
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37 */
38
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39/*
40 * newfs: friendly front end to mkfs
41 */
42#include <sys/param.h>
43#include <sys/stat.h>
41e59acb 44#include <sys/diskslice.h>
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45#include <sys/file.h>
46#include <sys/mount.h>
e0fb398b 47#include <sys/sysctl.h>
984263bc 48
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49#include <vfs/ufs/dir.h>
50#include <vfs/ufs/dinode.h>
51#include <vfs/ufs/fs.h>
52#include <vfs/ufs/ufsmount.h>
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53
54#include <ctype.h>
55#include <err.h>
56#include <errno.h>
b58f1e66 57#include <inttypes.h>
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58#include <paths.h>
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <syslog.h>
63#include <unistd.h>
9ab0684c 64#include <disktab.h>
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65
66#ifdef MFS
67#include <sys/types.h>
68#include <sys/mman.h>
69#endif
70
71#if __STDC__
72#include <stdarg.h>
73#else
74#include <varargs.h>
75#endif
76
77#include "mntopts.h"
76f3e8b3 78#include "defs.h"
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79
80struct mntopt mopts[] = {
81 MOPT_STDOPTS,
82 MOPT_ASYNC,
4462150b 83 MOPT_NULL,
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84};
85
b58f1e66 86void fatal(const char *fmt, ...) __printflike(1, 2);
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87
88#define COMPAT /* allow non-labeled disks */
89
90/*
91 * The following two constants set the default block and fragment sizes.
92 * Both constants must be a power of 2 and meet the following constraints:
93 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE
94 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE
95 * DESBLKSIZE / DESFRAGSIZE <= 8
96 */
97#define DFL_FRAGSIZE 2048
98#define DFL_BLKSIZE 16384
99
100/*
101 * Cylinder groups may have up to many cylinders. The actual
102 * number used depends upon how much information can be stored
103 * on a single cylinder. The default is to use as many as possible
104 * cylinders per group.
105 */
106#define DESCPG 65536 /* desired fs_cpg ("infinity") */
107
108/*
109 * Once upon a time...
110 * ROTDELAY gives the minimum number of milliseconds to initiate
111 * another disk transfer on the same cylinder. It is used in
112 * determining the rotationally optimal layout for disk blocks
113 * within a file; the default of fs_rotdelay is 4ms.
114 *
115 * ...but now we make this 0 to disable the rotdelay delay because
116 * modern drives with read/write-behind achieve higher performance
117 * without the delay.
118 */
119#define ROTDELAY 0
120
121/*
122 * MAXBLKPG determines the maximum number of data blocks which are
123 * placed in a single cylinder group. The default is one indirect
124 * block worth of data blocks.
125 */
126#define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t))
127
128/*
129 * Each file system has a number of inodes statically allocated.
130 * We allocate one inode slot per NFPI fragments, expecting this
131 * to be far more than we will ever need.
132 */
133#define NFPI 4
134
135/*
136 * Once upon a time...
137 * For each cylinder we keep track of the availability of blocks at different
138 * rotational positions, so that we can lay out the data to be picked
139 * up with minimum rotational latency. NRPOS is the default number of
140 * rotational positions that we distinguish. With NRPOS of 8 the resolution
141 * of our summary information is 2ms for a typical 3600 rpm drive.
142 *
143 * ...but now we make this 1 (which essentially disables the rotational
144 * position table because modern drives with read-ahead and write-behind do
145 * better without the rotational position table.
146 */
147#define NRPOS 1 /* number distinct rotational positions */
148
149/*
150 * About the same time as the above, we knew what went where on the disks.
151 * no longer so, so kill the code which finds the different platters too...
152 * We do this by saying one head, with a lot of sectors on it.
153 * The number of sectors are used to determine the size of a cyl-group.
154 * Kirk suggested one or two meg per "cylinder" so we say two.
155 */
156#define NTRACKS 1 /* number of heads */
157#define NSECTORS 4096 /* number of sectors */
158
159int mfs; /* run as the memory based filesystem */
160char *mfs_mtpt; /* mount point for mfs */
161struct stat mfs_mtstat; /* stat prior to mount */
b796e0dd 162int Lflag; /* add a volume label */
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163int Nflag; /* run without writing file system */
164int Oflag; /* format as an 4.3BSD file system */
76f3e8b3 165int Cflag; /* copy underlying filesystem (mfs only) */
984263bc 166int Uflag; /* enable soft updates for file system */
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167int Eflag; /* erase contents using TRIM */
168uint64_t slice_offset; /* Pysical device slice offset */
272b4ce8 169u_long fssize; /* file system size */
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170int ntracks = NTRACKS; /* # tracks/cylinder */
171int nsectors = NSECTORS; /* # sectors/track */
172int nphyssectors; /* # sectors/track including spares */
173int secpercyl; /* sectors per cylinder */
174int trackspares = -1; /* spare sectors per track */
175int cylspares = -1; /* spare sectors per cylinder */
176int sectorsize; /* bytes/sector */
177int realsectorsize; /* bytes/sector in hardware */
178int rpm; /* revolutions/minute of drive */
179int interleave; /* hardware sector interleave */
180int trackskew = -1; /* sector 0 skew, per track */
181int headswitch; /* head switch time, usec */
182int trackseek; /* track-to-track seek, usec */
183int fsize = 0; /* fragment size */
184int bsize = 0; /* block size */
185int cpg = DESCPG; /* cylinders/cylinder group */
186int cpgflg; /* cylinders/cylinder group flag was given */
187int minfree = MINFREE; /* free space threshold */
188int opt = DEFAULTOPT; /* optimization preference (space or time) */
189int density; /* number of bytes per inode */
190int maxcontig = 0; /* max contiguous blocks to allocate */
191int rotdelay = ROTDELAY; /* rotational delay between blocks */
192int maxbpg; /* maximum blocks per file in a cyl group */
193int nrpos = NRPOS; /* # of distinguished rotational positions */
194int avgfilesize = AVFILESIZ;/* expected average file size */
195int avgfilesperdir = AFPDIR;/* expected number of files per directory */
196int bbsize = BBSIZE; /* boot block size */
197int sbsize = SBSIZE; /* superblock size */
198int mntflags = MNT_ASYNC; /* flags to be passed to mount */
199int t_or_u_flag = 0; /* user has specified -t or -u */
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200caddr_t membase; /* start address of memory based filesystem */
201char *filename;
b796e0dd 202u_char *volumelabel = NULL; /* volume label for filesystem */
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203#ifdef COMPAT
204char *disktype;
205int unlabeled;
206#endif
207
e4c9c0c8 208char mfsdevname[256];
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209char *progname;
210
9a76cd75 211static void usage(void);
e4c9c0c8 212static void mfsintr(int signo);
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213
214int
b5744197 215main(int argc, char **argv)
984263bc 216{
b796e0dd 217 int ch, i;
41e59acb 218 struct disktab geom; /* disk geometry data */
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219 struct stat st;
220 struct statfs *mp;
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221 int fsi = -1, fso = -1, len, n, vflag;
222 char *s1, *s2, *special;
4462150b 223 const char *opstring;
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224#ifdef MFS
225 struct vfsconf vfc;
226 int error;
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227#endif
228
41e59acb 229 bzero(&geom, sizeof(geom));
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230 vflag = 0;
231 if ((progname = strrchr(*argv, '/')))
232 ++progname;
233 else
234 progname = *argv;
235
236 if (strstr(progname, "mfs")) {
237 mfs = 1;
238 Nflag++;
239 }
240
241 opstring = mfs ?
b796e0dd 242 "L:NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" :
e0fb398b 243 "L:NREOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:";
41e59acb 244 while ((ch = getopt(argc, argv, opstring)) != -1) {
984263bc 245 switch (ch) {
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246 case 'E':
247 Eflag = 1;
248 break;
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249 case 'L':
250 volumelabel = optarg;
251 i = -1;
252 while (isalnum(volumelabel[++i]))
253 ;
254 if (volumelabel[i] != '\0')
255 errx(1, "bad volume label. Valid characters are alphanumerics.");
256 if (strlen(volumelabel) >= MAXVOLLEN)
257 errx(1, "bad volume label. Length is longer than %d.",
258 MAXVOLLEN);
259 Lflag = 1;
260 break;
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261 case 'N':
262 Nflag = 1;
263 break;
264 case 'O':
265 Oflag = 1;
266 break;
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267 case 'C':
268 Cflag = 1; /* MFS only */
269 break;
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270 case 'S':
271 if ((sectorsize = atoi(optarg)) <= 0)
272 fatal("%s: bad sector size", optarg);
273 break;
274#ifdef COMPAT
275 case 'T':
276 disktype = optarg;
277 break;
278#endif
279 case 'F':
280 filename = optarg;
281 break;
282 case 'U':
283 Uflag = 1;
284 break;
285 case 'a':
286 if ((maxcontig = atoi(optarg)) <= 0)
287 fatal("%s: bad maximum contiguous blocks",
288 optarg);
289 break;
290 case 'b':
291 if ((bsize = atoi(optarg)) < MINBSIZE)
292 fatal("%s: bad block size", optarg);
293 break;
294 case 'c':
295 if ((cpg = atoi(optarg)) <= 0)
296 fatal("%s: bad cylinders/group", optarg);
297 cpgflg++;
298 break;
299 case 'd':
300 if ((rotdelay = atoi(optarg)) < 0)
301 fatal("%s: bad rotational delay", optarg);
302 break;
303 case 'e':
304 if ((maxbpg = atoi(optarg)) <= 0)
305 fatal("%s: bad blocks per file in a cylinder group",
306 optarg);
307 break;
308 case 'f':
309 if ((fsize = atoi(optarg)) <= 0)
310 fatal("%s: bad fragment size", optarg);
311 break;
312 case 'g':
313 if ((avgfilesize = atoi(optarg)) <= 0)
314 fatal("%s: bad average file size", optarg);
315 break;
316 case 'h':
317 if ((avgfilesperdir = atoi(optarg)) <= 0)
318 fatal("%s: bad average files per dir", optarg);
319 break;
320 case 'i':
321 if ((density = atoi(optarg)) <= 0)
322 fatal("%s: bad bytes per inode", optarg);
323 break;
324 case 'k':
325 if ((trackskew = atoi(optarg)) < 0)
326 fatal("%s: bad track skew", optarg);
327 break;
328 case 'l':
329 if ((interleave = atoi(optarg)) <= 0)
330 fatal("%s: bad interleave", optarg);
331 break;
332 case 'm':
333 if ((minfree = atoi(optarg)) < 0 || minfree > 99)
334 fatal("%s: bad free space %%", optarg);
335 break;
336 case 'n':
337 if ((nrpos = atoi(optarg)) < 0)
338 fatal("%s: bad rotational layout count",
339 optarg);
340 if (nrpos == 0)
341 nrpos = 1;
342 break;
343 case 'o':
344 if (mfs)
345 getmntopts(optarg, mopts, &mntflags, 0);
346 else {
347 if (strcmp(optarg, "space") == 0)
348 opt = FS_OPTSPACE;
349 else if (strcmp(optarg, "time") == 0)
350 opt = FS_OPTTIME;
351 else
352 fatal("%s: unknown optimization preference: use `space' or `time'", optarg);
353 }
354 break;
355 case 'p':
356 if ((trackspares = atoi(optarg)) < 0)
357 fatal("%s: bad spare sectors per track",
358 optarg);
359 break;
360 case 'r':
361 if ((rpm = atoi(optarg)) <= 0)
362 fatal("%s: bad revolutions/minute", optarg);
363 break;
364 case 's':
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365 /*
366 * Unsigned long but limit to long. On 32 bit a
367 * tad under 2G, on 64 bit the upper bound is more
368 * swap space then operand size.
369 *
370 * NOTE: fssize is converted from 512 byte sectors
371 * to filesystem block-sized sectors by mkfs XXX.
372 */
373 fssize = strtoul(optarg, NULL, 10);
374 if (fssize == 0 || fssize > LONG_MAX)
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375 fatal("%s: bad file system size", optarg);
376 break;
377 case 't':
378 t_or_u_flag++;
379 if ((ntracks = atoi(optarg)) < 0)
380 fatal("%s: bad total tracks", optarg);
381 break;
382 case 'u':
383 t_or_u_flag++;
384 if ((nsectors = atoi(optarg)) < 0)
385 fatal("%s: bad sectors/track", optarg);
386 break;
387 case 'v':
388 vflag = 1;
389 break;
390 case 'x':
391 if ((cylspares = atoi(optarg)) < 0)
392 fatal("%s: bad spare sectors per cylinder",
393 optarg);
394 break;
395 case '?':
396 default:
397 usage();
398 }
41e59acb 399 }
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400 argc -= optind;
401 argv += optind;
402
403 if (argc != 2 && (mfs || argc != 1))
404 usage();
405
406 special = argv[0];
407 /* Copy the NetBSD way of faking up a disk label */
408 if (mfs && !strcmp(special, "swap")) {
409 /*
410 * it's an MFS, mounted on "swap." fake up a label.
411 * XXX XXX XXX
412 */
413 fso = -1; /* XXX; normally done below. */
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414
415 geom.d_media_blksize = 512;
416 geom.d_nheads = 16;
417 geom.d_secpertrack = 64;
418 /* geom.d_ncylinders not used */
419 geom.d_secpercyl = 1024;
420 geom.d_media_blocks = 16384;
421 geom.d_rpm = 3600;
422 geom.d_interleave = 1;
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423
424 goto havelabel;
425 }
426
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427 /*
428 * If we can't stat the device and the path is relative, try
429 * prepending /dev.
430 */
431 if (stat(special, &st) < 0 && special[0] && special[0] != '/')
432 asprintf(&special, "/dev/%s", special);
433
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434 if (Eflag) {
435 char sysctl_name[64];
436 int trim_enabled = 0;
437 size_t olen = sizeof(trim_enabled);
438 char *dev_name = strdup(special);
439
440 dev_name = strtok(dev_name + strlen("/dev/da"),"s");
441 sprintf(sysctl_name, "kern.cam.da.%s.trim_enabled",
442 dev_name);
443
444 sysctlbyname(sysctl_name, &trim_enabled, &olen, NULL, 0);
445
446 if(errno == ENOENT) {
447 printf("Device:%s does not support the TRIM command\n",
448 special);
449 usage();
450 }
451 if(!trim_enabled) {
452 printf("Erase device option selected, but sysctl (%s) "
453 "is not enabled\n",sysctl_name);
454 usage();
455
456 }
457 }
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458 if (Nflag) {
459 fso = -1;
460 } else {
461 fso = open(special, O_WRONLY);
462 if (fso < 0)
463 fatal("%s: %s", special, strerror(errno));
464
465 /* Bail if target special is mounted */
466 n = getmntinfo(&mp, MNT_NOWAIT);
467 if (n == 0)
468 fatal("%s: getmntinfo: %s", special, strerror(errno));
469
470 len = sizeof(_PATH_DEV) - 1;
471 s1 = special;
472 if (strncmp(_PATH_DEV, s1, len) == 0)
473 s1 += len;
474
475 while (--n >= 0) {
476 s2 = mp->f_mntfromname;
477 if (strncmp(_PATH_DEV, s2, len) == 0) {
478 s2 += len - 1;
479 *s2 = 'r';
480 }
481 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0)
482 fatal("%s is mounted on %s",
483 special, mp->f_mntonname);
484 ++mp;
485 }
486 }
487 if (mfs && disktype != NULL) {
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488 struct disktab *dt;
489
490 if ((dt = getdisktabbyname(disktype)) == NULL)
984263bc 491 fatal("%s: unknown disk type", disktype);
41e59acb 492 geom = *dt;
984263bc 493 } else {
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494 struct partinfo pinfo;
495
496 if (special[0] == 0)
497 fatal("null special file name");
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498 fsi = open(special, O_RDONLY);
499 if (fsi < 0)
500 fatal("%s: %s", special, strerror(errno));
501 if (fstat(fsi, &st) < 0)
502 fatal("%s: %s", special, strerror(errno));
41e59acb 503 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs && !vflag)
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504 printf("%s: %s: not a character-special device\n",
505 progname, special);
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506#ifdef COMPAT
507 if (!mfs && disktype == NULL)
508 disktype = argv[1];
509#endif
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510 if (ioctl(fsi, DIOCGPART, &pinfo) < 0) {
511 if (!vflag) {
512 fatal("%s: unable to retrieve geometry "
513 "information", argv[0]);
514 }
515 /*
516 * fake up geometry data
517 */
518 geom.d_media_blksize = 512;
519 geom.d_nheads = 16;
520 geom.d_secpertrack = 64;
521 geom.d_secpercyl = 1024;
522 geom.d_media_blocks = st.st_size /
523 geom.d_media_blksize;
524 geom.d_media_size = geom.d_media_blocks *
525 geom.d_media_blksize;
526 /* geom.d_ncylinders not used */
3af2835d 527 } else {
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528 /*
529 * extract geometry from pinfo
530 */
531 geom.d_media_blksize = pinfo.media_blksize;
532 geom.d_nheads = pinfo.d_nheads;
533 geom.d_secpertrack = pinfo.d_secpertrack;
534 geom.d_secpercyl = pinfo.d_secpercyl;
535 /* geom.d_ncylinders not used */
536 geom.d_media_blocks = pinfo.media_blocks;
537 geom.d_media_size = pinfo.media_size;
e0fb398b 538 slice_offset = pinfo.media_offset;
3af2835d 539 }
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540 if (geom.d_media_blocks == 0 || geom.d_media_size == 0) {
541 fatal("%s: is unavailable", argv[0]);
3af2835d 542 }
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543 printf("%s: media size %6.2fMB\n",
544 argv[0], geom.d_media_size / 1024.0 / 1024.0);
545 if (geom.d_media_size / 512 >= 0x80000000ULL)
546 fatal("%s: media size is too large for newfs to handle",
547 argv[0]);
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548 }
549havelabel:
550 if (fssize == 0)
41e59acb 551 fssize = geom.d_media_blocks;
272b4ce8 552 if ((u_long)fssize > geom.d_media_blocks && !mfs) {
b58f1e66 553 fatal("%s: maximum file system size is %" PRIu64 " blocks",
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554 argv[0], geom.d_media_blocks);
555 }
984263bc 556 if (rpm == 0) {
41e59acb 557 rpm = geom.d_rpm;
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558 if (rpm <= 0)
559 rpm = 3600;
560 }
561 if (ntracks == 0) {
41e59acb 562 ntracks = geom.d_nheads;
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563 if (ntracks <= 0)
564 fatal("%s: no default #tracks", argv[0]);
565 }
566 if (nsectors == 0) {
41e59acb 567 nsectors = geom.d_secpertrack;
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568 if (nsectors <= 0)
569 fatal("%s: no default #sectors/track", argv[0]);
570 }
571 if (sectorsize == 0) {
41e59acb 572 sectorsize = geom.d_media_blksize;
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573 if (sectorsize <= 0)
574 fatal("%s: no default sector size", argv[0]);
575 }
576 if (trackskew == -1) {
41e59acb 577 trackskew = geom.d_trackskew;
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578 if (trackskew < 0)
579 trackskew = 0;
580 }
581 if (interleave == 0) {
41e59acb 582 interleave = geom.d_interleave;
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583 if (interleave <= 0)
584 interleave = 1;
585 }
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586 if (fsize == 0)
587 fsize = MAX(DFL_FRAGSIZE, geom.d_media_blksize);
588 if (bsize == 0)
589 bsize = MIN(DFL_BLKSIZE, 8 * fsize);
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590 /*
591 * Maxcontig sets the default for the maximum number of blocks
592 * that may be allocated sequentially. With filesystem clustering
593 * it is possible to allocate contiguous blocks up to the maximum
594 * transfer size permitted by the controller or buffering.
595 */
596 if (maxcontig == 0)
597 maxcontig = MAX(1, MAXPHYS / bsize - 1);
598 if (density == 0)
599 density = NFPI * fsize;
600 if (minfree < MINFREE && opt != FS_OPTSPACE) {
601 fprintf(stderr, "Warning: changing optimization to space ");
602 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE);
603 opt = FS_OPTSPACE;
604 }
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605 if (trackspares == -1)
606 trackspares = 0;
984263bc 607 nphyssectors = nsectors + trackspares;
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608 if (cylspares == -1)
609 cylspares = 0;
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610 secpercyl = nsectors * ntracks - cylspares;
611 /*
612 * Only complain if -t or -u have been specified; the default
613 * case (4096 sectors per cylinder) is intended to disagree
614 * with the disklabel.
615 */
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616 if (t_or_u_flag && (uint32_t)secpercyl != geom.d_secpercyl)
617 fprintf(stderr, "%s (%d) %s (%u)\n",
984263bc 618 "Warning: calculated sectors per cylinder", secpercyl,
41e59acb 619 "disagrees with disk label", geom.d_secpercyl);
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620 if (maxbpg == 0)
621 maxbpg = MAXBLKPG(bsize);
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622 headswitch = geom.d_headswitch;
623 trackseek = geom.d_trkseek;
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624 realsectorsize = sectorsize;
625 if (sectorsize != DEV_BSIZE) { /* XXX */
626 int secperblk = sectorsize / DEV_BSIZE;
627
628 sectorsize = DEV_BSIZE;
629 nsectors *= secperblk;
630 nphyssectors *= secperblk;
631 secpercyl *= secperblk;
632 fssize *= secperblk;
984263bc 633 }
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634 if (mfs) {
635 mfs_mtpt = argv[1];
636 if (
637 stat(mfs_mtpt, &mfs_mtstat) < 0 ||
638 !S_ISDIR(mfs_mtstat.st_mode)
639 ) {
640 fatal("mount point not dir: %s", mfs_mtpt);
641 }
642 }
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643 mkfs(special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL);
644
645 /*
646 * NOTE: Newfs no longer accesses or attempts to update the
647 * filesystem disklabel.
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648 *
649 * NOTE: fssize is converted from 512 byte sectors
650 * to filesystem block-sized sectors by mkfs XXX.
41e59acb 651 */
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652 if (!Nflag)
653 close(fso);
654 close(fsi);
655#ifdef MFS
656 if (mfs) {
657 struct mfs_args args;
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658
659 bzero(&args, sizeof(args));
984263bc 660
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661 snprintf(mfsdevname, sizeof(mfsdevname), "/dev/mfs%d",
662 getpid());
663 args.fspec = mfsdevname;
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664 args.export.ex_root = -2;
665 if (mntflags & MNT_RDONLY)
666 args.export.ex_flags = MNT_EXRDONLY;
667 else
668 args.export.ex_flags = 0;
669 args.base = membase;
272b4ce8 670 args.size = fssize * fsize;
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671
672 error = getvfsbyname("mfs", &vfc);
673 if (error && vfsisloadable("mfs")) {
674 if (vfsload("mfs"))
675 fatal("vfsload(mfs)");
676 endvfsent(); /* flush cache */
677 error = getvfsbyname("mfs", &vfc);
678 }
679 if (error)
680 fatal("mfs filesystem not available");
681
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682#if 0
683 int udev;
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684 udev = (253 << 8) | (getpid() & 255) |
685 ((getpid() & ~0xFF) << 8);
686 if (mknod(mfsdevname, S_IFCHR | 0700, udev) < 0)
687 printf("Warning: unable to create %s\n", mfsdevname);
ac9389d5 688#endif
e4c9c0c8 689 signal(SIGINT, mfsintr);
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690 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0)
691 fatal("%s: %s", argv[1], strerror(errno));
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692 signal(SIGINT, SIG_DFL);
693 mfsintr(SIGINT);
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694 }
695#endif
696 exit(0);
697}
698
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699#ifdef MFS
700
701static void
4462150b 702mfsintr(__unused int signo)
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703{
704 if (filename)
272b4ce8 705 munmap(membase, fssize * fsize);
ac9389d5 706#if 0
e4c9c0c8 707 remove(mfsdevname);
ac9389d5 708#endif
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709}
710
711#endif
712
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713/*VARARGS*/
714void
984263bc 715fatal(const char *fmt, ...)
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716{
717 va_list ap;
718
984263bc 719 va_start(ap, fmt);
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720 if (fcntl(STDERR_FILENO, F_GETFL) < 0) {
721 openlog(progname, LOG_CONS, LOG_DAEMON);
722 vsyslog(LOG_ERR, fmt, ap);
723 closelog();
724 } else {
725 vwarnx(fmt, ap);
726 }
727 va_end(ap);
728 exit(1);
729 /*NOTREACHED*/
730}
731
e0fb398b 732void
b5744197 733usage(void)
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734{
735 if (mfs) {
736 fprintf(stderr,
737 "usage: %s [ -fsoptions ] special-device mount-point\n",
738 progname);
739 } else
740 fprintf(stderr,
741 "usage: %s [ -fsoptions ] special-device%s\n",
742 progname,
743#ifdef COMPAT
744 " [device-type]");
745#else
746 "");
747#endif
748 fprintf(stderr, "where fsoptions are:\n");
70d0e24f 749 fprintf(stderr, "\t-C (mfs) Copy the underlying filesystem to the MFS mount\n");
e0fb398b 750 fprintf(stderr, "\t-E erase file system contents using TRIM\n");
b796e0dd 751 fprintf(stderr, "\t-L volume name\n");
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752 fprintf(stderr,
753 "\t-N do not create file system, just print out parameters\n");
754 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n");
e0fb398b 755 fprintf(stderr, "\t-R enable TRIM\n");
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756 fprintf(stderr, "\t-S sector size\n");
757#ifdef COMPAT
758 fprintf(stderr, "\t-T disktype\n");
759#endif
760 fprintf(stderr, "\t-U enable soft updates\n");
761 fprintf(stderr, "\t-a maximum contiguous blocks\n");
762 fprintf(stderr, "\t-b block size\n");
763 fprintf(stderr, "\t-c cylinders/group\n");
764 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n");
765 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n");
766 fprintf(stderr, "\t-f frag size\n");
767 fprintf(stderr, "\t-g average file size\n");
768 fprintf(stderr, "\t-h average files per directory\n");
769 fprintf(stderr, "\t-i number of bytes per inode\n");
770 fprintf(stderr, "\t-k sector 0 skew, per track\n");
771 fprintf(stderr, "\t-l hardware sector interleave\n");
772 fprintf(stderr, "\t-m minimum free space %%\n");
773 fprintf(stderr, "\t-n number of distinguished rotational positions\n");
774 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n");
775 fprintf(stderr, "\t-p spare sectors per track\n");
776 fprintf(stderr, "\t-s file system size (sectors)\n");
777 fprintf(stderr, "\t-r revolutions/minute\n");
778 fprintf(stderr, "\t-t tracks/cylinder\n");
779 fprintf(stderr, "\t-u sectors/track\n");
780 fprintf(stderr,
781 "\t-v do not attempt to determine partition name from device name\n");
782 fprintf(stderr, "\t-x spare sectors per cylinder\n");
783 exit(1);
784}