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c988ea91 CH |
1 | /* |
2 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it would be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | */ | |
18 | ||
6b803e5a CH |
19 | #include "libxfs.h" |
20 | #include "xfs.h" | |
21 | #include "xfs_types.h" | |
22 | #include "jdm.h" | |
23 | #include "xfs_bmap_btree.h" | |
24 | #include "xfs_attr_sf.h" | |
c988ea91 CH |
25 | |
26 | #include <fcntl.h> | |
27 | #include <errno.h> | |
c988ea91 CH |
28 | #include <syslog.h> |
29 | #include <signal.h> | |
30 | #include <sys/ioctl.h> | |
31 | #include <sys/wait.h> | |
c988ea91 CH |
32 | #include <sys/statvfs.h> |
33 | #include <sys/xattr.h> | |
0e2fb84a | 34 | #include <paths.h> |
c988ea91 | 35 | |
89e4b5bd CH |
36 | #define _PATH_FSRLAST "/var/tmp/.fsrlast_xfs" |
37 | #define _PATH_PROC_MOUNTS "/proc/mounts" | |
38 | ||
c988ea91 CH |
39 | |
40 | char *progname; | |
41 | ||
42 | int vflag; | |
43 | int gflag; | |
44 | static int Mflag; | |
45 | /* static int nflag; */ | |
46 | int dflag = 0; | |
47 | /* static int sflag; */ | |
48 | int argv_blksz_dio; | |
49 | extern int max_ext_size; | |
50 | static int npasses = 10; | |
51 | static int startpass = 0; | |
52 | ||
53 | struct getbmap *outmap = NULL; | |
54 | int outmap_size = 0; | |
55 | int RealUid; | |
56 | int tmp_agi; | |
57 | static __int64_t minimumfree = 2048; | |
58 | ||
59 | #define MNTTYPE_XFS "xfs" | |
60 | ||
61 | #define SMBUFSZ 1024 | |
62 | #define ROOT 0 | |
63 | #define NULLFD -1 | |
64 | #define GRABSZ 64 | |
65 | #define TARGETRANGE 10 | |
66 | #define V_NONE 0 | |
67 | #define V_OVERVIEW 1 | |
68 | #define V_ALL 2 | |
69 | #define BUFFER_SIZE (1<<16) | |
70 | #define BUFFER_MAX (1<<24) | |
c988ea91 CH |
71 | |
72 | static time_t howlong = 7200; /* default seconds of reorganizing */ | |
73 | static char *leftofffile = _PATH_FSRLAST; /* where we left off last */ | |
c988ea91 CH |
74 | static time_t endtime; |
75 | static time_t starttime; | |
76 | static xfs_ino_t leftoffino = 0; | |
77 | static int pagesize; | |
78 | ||
79 | void usage(int ret); | |
80 | static int fsrfile(char *fname, xfs_ino_t ino); | |
81 | static int fsrfile_common( char *fname, char *tname, char *mnt, | |
82 | int fd, xfs_bstat_t *statp); | |
83 | static int packfile(char *fname, char *tname, int fd, | |
84 | xfs_bstat_t *statp, struct fsxattr *fsxp); | |
85 | static void fsrdir(char *dirname); | |
86 | static int fsrfs(char *mntdir, xfs_ino_t ino, int targetrange); | |
87 | static void initallfs(char *mtab); | |
89e4b5bd | 88 | static void fsrallfs(char *mtab, int howlong, char *leftofffile); |
c988ea91 CH |
89 | static void fsrall_cleanup(int timeout); |
90 | static int getnextents(int); | |
91 | int xfsrtextsize(int fd); | |
92 | int xfs_getrt(int fd, struct statvfs64 *sfbp); | |
93 | char * gettmpname(char *fname); | |
94 | char * getparent(char *fname); | |
95 | int fsrprintf(const char *fmt, ...); | |
96 | int read_fd_bmap(int, xfs_bstat_t *, int *); | |
97 | int cmp(const void *, const void *); | |
98 | static void tmp_init(char *mnt); | |
99 | static char * tmp_next(char *mnt); | |
100 | static void tmp_close(char *mnt); | |
101 | int xfs_getgeom(int , xfs_fsop_geom_v1_t * ); | |
c988ea91 CH |
102 | |
103 | xfs_fsop_geom_v1_t fsgeom; /* geometry of active mounted system */ | |
104 | ||
105 | #define NMOUNT 64 | |
106 | static int numfs; | |
107 | ||
108 | typedef struct fsdesc { | |
109 | char *dev; | |
110 | char *mnt; | |
111 | int npass; | |
112 | } fsdesc_t; | |
113 | ||
114 | fsdesc_t *fs, *fsbase, *fsend; | |
115 | int fsbufsize = 10; /* A starting value */ | |
116 | int nfrags = 0; /* Debug option: Coerse into specific number | |
117 | * of extents */ | |
118 | int openopts = O_CREAT|O_EXCL|O_RDWR|O_DIRECT; | |
119 | ||
120 | int | |
121 | xfs_fsgeometry(int fd, xfs_fsop_geom_v1_t *geom) | |
122 | { | |
123 | return ioctl(fd, XFS_IOC_FSGEOMETRY_V1, geom); | |
124 | } | |
125 | ||
126 | int | |
127 | xfs_bulkstat_single(int fd, xfs_ino_t *lastip, xfs_bstat_t *ubuffer) | |
128 | { | |
129 | xfs_fsop_bulkreq_t bulkreq; | |
130 | ||
cad114df | 131 | bulkreq.lastip = (__u64 *)lastip; |
c988ea91 CH |
132 | bulkreq.icount = 1; |
133 | bulkreq.ubuffer = ubuffer; | |
134 | bulkreq.ocount = NULL; | |
135 | return ioctl(fd, XFS_IOC_FSBULKSTAT_SINGLE, &bulkreq); | |
136 | } | |
137 | ||
138 | int | |
139 | xfs_bulkstat(int fd, xfs_ino_t *lastip, int icount, | |
140 | xfs_bstat_t *ubuffer, __s32 *ocount) | |
141 | { | |
142 | xfs_fsop_bulkreq_t bulkreq; | |
143 | ||
cad114df | 144 | bulkreq.lastip = (__u64 *)lastip; |
c988ea91 CH |
145 | bulkreq.icount = icount; |
146 | bulkreq.ubuffer = ubuffer; | |
147 | bulkreq.ocount = ocount; | |
148 | return ioctl(fd, XFS_IOC_FSBULKSTAT, &bulkreq); | |
149 | } | |
150 | ||
151 | int | |
152 | xfs_swapext(int fd, xfs_swapext_t *sx) | |
153 | { | |
154 | return ioctl(fd, XFS_IOC_SWAPEXT, sx); | |
155 | } | |
156 | ||
157 | int | |
158 | xfs_fscounts(int fd, xfs_fsop_counts_t *counts) | |
159 | { | |
160 | return ioctl(fd, XFS_IOC_FSCOUNTS, counts); | |
161 | } | |
162 | ||
163 | void | |
164 | aborter(int unused) | |
165 | { | |
166 | fsrall_cleanup(1); | |
167 | exit(1); | |
168 | } | |
169 | ||
3e50d888 CH |
170 | /* |
171 | * Check if the argument is either the device name or mountpoint of an XFS | |
172 | * filesystem. Note that we do not care about bind mounted regular files | |
173 | * here - the code that handles defragmentation of invidual files takes care | |
174 | * of that. | |
175 | */ | |
7141fc5b | 176 | static char * |
f594a0d1 | 177 | find_mountpoint_check(struct stat *sb, struct mntent *t) |
7141fc5b | 178 | { |
f594a0d1 | 179 | struct stat ms; |
7849d55d | 180 | |
7141fc5b | 181 | if (S_ISDIR(sb->st_mode)) { /* mount point */ |
f594a0d1 | 182 | if (stat(t->mnt_dir, &ms) < 0) |
7141fc5b | 183 | return NULL; |
7849d55d | 184 | if (sb->st_ino != ms.st_ino) |
7141fc5b | 185 | return NULL; |
7849d55d | 186 | if (sb->st_dev != ms.st_dev) |
7141fc5b JT |
187 | return NULL; |
188 | if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) | |
189 | return NULL; | |
190 | } else { /* device */ | |
f594a0d1 | 191 | if (stat(t->mnt_fsname, &ms) < 0) |
7141fc5b | 192 | return NULL; |
7849d55d | 193 | if (sb->st_rdev != ms.st_rdev) |
7141fc5b JT |
194 | return NULL; |
195 | if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) | |
196 | return NULL; | |
7141fc5b | 197 | /* |
a32546b0 DC |
198 | * Make sure the mountpoint given by mtab is accessible |
199 | * before using it. | |
200 | */ | |
f594a0d1 | 201 | if (stat(t->mnt_dir, &ms) < 0) |
7141fc5b JT |
202 | return NULL; |
203 | } | |
204 | ||
205 | return t->mnt_dir; | |
7141fc5b JT |
206 | } |
207 | ||
3e50d888 | 208 | static char * |
f594a0d1 | 209 | find_mountpoint(char *mtab, char *argname, struct stat *sb) |
3e50d888 | 210 | { |
7141fc5b | 211 | struct mntent_cursor cursor; |
7141fc5b | 212 | struct mntent *t = NULL; |
3e50d888 CH |
213 | char *mntp = NULL; |
214 | ||
7141fc5b JT |
215 | if (platform_mntent_open(&cursor, mtab) != 0){ |
216 | fprintf(stderr, "Error: can't get mntent entries.\n"); | |
3e50d888 CH |
217 | exit(1); |
218 | } | |
219 | ||
a32546b0 | 220 | while ((t = platform_mntent_next(&cursor)) != NULL) { |
7849d55d | 221 | mntp = find_mountpoint_check(sb, t); |
7141fc5b JT |
222 | if (mntp == NULL) |
223 | continue; | |
3e50d888 CH |
224 | break; |
225 | } | |
7141fc5b | 226 | platform_mntent_close(&cursor); |
3e50d888 CH |
227 | return mntp; |
228 | } | |
229 | ||
c988ea91 CH |
230 | int |
231 | main(int argc, char **argv) | |
232 | { | |
f594a0d1 | 233 | struct stat sb; |
c988ea91 | 234 | char *argname; |
c988ea91 | 235 | int c; |
3e50d888 | 236 | char *mntp; |
89e4b5bd | 237 | char *mtab = NULL; |
c988ea91 CH |
238 | |
239 | setlinebuf(stdout); | |
240 | progname = basename(argv[0]); | |
241 | ||
242 | setlocale(LC_ALL, ""); | |
243 | bindtextdomain(PACKAGE, LOCALEDIR); | |
244 | textdomain(PACKAGE); | |
245 | ||
246 | gflag = ! isatty(0); | |
247 | ||
89e4b5bd | 248 | while ((c = getopt(argc, argv, "C:p:e:MgsdnvTt:f:m:b:N:FV")) != -1) { |
c988ea91 CH |
249 | switch (c) { |
250 | case 'M': | |
251 | Mflag = 1; | |
252 | break; | |
253 | case 'g': | |
254 | gflag = 1; | |
255 | break; | |
256 | case 'n': | |
257 | /* nflag = 1; */ | |
258 | break; | |
259 | case 'v': | |
260 | ++vflag; | |
261 | break; | |
262 | case 'd': | |
263 | dflag = 1; | |
264 | break; | |
265 | case 's': /* frag stats only */ | |
266 | /* sflag = 1; */ | |
267 | fprintf(stderr, | |
268 | _("%s: Stats not yet supported for XFS\n"), | |
269 | progname); | |
270 | usage(1); | |
271 | break; | |
272 | case 't': | |
273 | howlong = atoi(optarg); | |
274 | break; | |
275 | case 'f': | |
276 | leftofffile = optarg; | |
277 | break; | |
278 | case 'm': | |
279 | mtab = optarg; | |
280 | break; | |
281 | case 'b': | |
282 | argv_blksz_dio = atoi(optarg); | |
283 | break; | |
284 | case 'p': | |
285 | npasses = atoi(optarg); | |
286 | break; | |
287 | case 'C': | |
288 | /* Testing opt: coerses frag count in result */ | |
289 | if (getenv("FSRXFSTEST") != NULL) { | |
290 | nfrags = atoi(optarg); | |
291 | openopts |= O_SYNC; | |
292 | } | |
293 | break; | |
294 | case 'V': | |
295 | printf(_("%s version %s\n"), progname, VERSION); | |
296 | exit(0); | |
297 | default: | |
298 | usage(1); | |
299 | } | |
89e4b5bd CH |
300 | } |
301 | ||
302 | /* | |
303 | * If the user did not specify an explicit mount table, try to use | |
304 | * /proc/mounts if it is available, else /etc/mtab. We prefer | |
305 | * /proc/mounts because it is kernel controlled, while /etc/mtab | |
306 | * may contain garbage that userspace tools like pam_mounts wrote | |
307 | * into it. | |
308 | */ | |
309 | if (!mtab) { | |
310 | if (access(_PATH_PROC_MOUNTS, R_OK) == 0) | |
311 | mtab = _PATH_PROC_MOUNTS; | |
312 | else | |
313 | mtab = _PATH_MOUNTED; | |
314 | } | |
315 | ||
c988ea91 CH |
316 | if (vflag) |
317 | setbuf(stdout, NULL); | |
318 | ||
319 | starttime = time(0); | |
320 | ||
321 | /* Save the caller's real uid */ | |
322 | RealUid = getuid(); | |
323 | ||
324 | pagesize = getpagesize(); | |
325 | ||
326 | if (optind < argc) { | |
327 | for (; optind < argc; optind++) { | |
328 | argname = argv[optind]; | |
3e50d888 | 329 | |
f594a0d1 | 330 | if (lstat(argname, &sb) < 0) { |
c988ea91 CH |
331 | fprintf(stderr, |
332 | _("%s: could not stat: %s: %s\n"), | |
333 | progname, argname, strerror(errno)); | |
334 | continue; | |
335 | } | |
3e50d888 CH |
336 | |
337 | if (S_ISLNK(sb.st_mode)) { | |
f594a0d1 | 338 | struct stat sb2; |
3e50d888 | 339 | |
f594a0d1 | 340 | if (stat(argname, &sb2) == 0 && |
3e50d888 CH |
341 | (S_ISBLK(sb2.st_mode) || |
342 | S_ISCHR(sb2.st_mode))) | |
c988ea91 | 343 | sb = sb2; |
c988ea91 | 344 | } |
3e50d888 CH |
345 | |
346 | mntp = find_mountpoint(mtab, argname, &sb); | |
c988ea91 | 347 | if (mntp != NULL) { |
3e50d888 | 348 | fsrfs(mntp, 0, 100); |
c988ea91 CH |
349 | } else if (S_ISCHR(sb.st_mode)) { |
350 | fprintf(stderr, _( | |
351 | "%s: char special not supported: %s\n"), | |
352 | progname, argname); | |
353 | exit(1); | |
354 | } else if (S_ISDIR(sb.st_mode) || S_ISREG(sb.st_mode)) { | |
355 | if (!platform_test_xfs_path(argname)) { | |
356 | fprintf(stderr, _( | |
357 | "%s: cannot defragment: %s: Not XFS\n"), | |
358 | progname, argname); | |
359 | continue; | |
360 | } | |
361 | if (S_ISDIR(sb.st_mode)) | |
362 | fsrdir(argname); | |
363 | else | |
364 | fsrfile(argname, sb.st_ino); | |
365 | } else { | |
366 | printf( | |
367 | _("%s: not fsys dev, dir, or reg file, ignoring\n"), | |
368 | argname); | |
369 | } | |
370 | } | |
371 | } else { | |
372 | initallfs(mtab); | |
89e4b5bd | 373 | fsrallfs(mtab, howlong, leftofffile); |
c988ea91 CH |
374 | } |
375 | return 0; | |
376 | } | |
377 | ||
378 | void | |
379 | usage(int ret) | |
380 | { | |
381 | fprintf(stderr, _( | |
30626ef6 ES |
382 | "Usage: %s [-d] [-v] [-g] [-t time] [-p passes] [-f leftf] [-m mtab]\n" |
383 | " %s [-d] [-v] [-g] xfsdev | dir | file ...\n" | |
384 | " %s -V\n\n" | |
c988ea91 | 385 | "Options:\n" |
c988ea91 CH |
386 | " -g Print to syslog (default if stdout not a tty).\n" |
387 | " -t time How long to run in seconds.\n" | |
30626ef6 | 388 | " -p passes Number of passes before terminating global re-org.\n" |
c988ea91 CH |
389 | " -f leftoff Use this instead of %s.\n" |
390 | " -m mtab Use something other than /etc/mtab.\n" | |
391 | " -d Debug, print even more.\n" | |
30626ef6 ES |
392 | " -v Verbose, more -v's more verbose.\n" |
393 | " -V Print version number and exit.\n" | |
394 | ), progname, progname, progname, _PATH_FSRLAST); | |
c988ea91 CH |
395 | exit(ret); |
396 | } | |
397 | ||
398 | /* | |
399 | * initallfs -- read the mount table and set up an internal form | |
400 | */ | |
401 | static void | |
402 | initallfs(char *mtab) | |
403 | { | |
7141fc5b | 404 | struct mntent_cursor cursor; |
7849d55d | 405 | struct mntent *mnt= NULL; |
c988ea91 CH |
406 | int mi; |
407 | char *cp; | |
f594a0d1 | 408 | struct stat sb; |
c988ea91 CH |
409 | |
410 | /* malloc a number of descriptors, increased later if needed */ | |
411 | if (!(fsbase = (fsdesc_t *)malloc(fsbufsize * sizeof(fsdesc_t)))) { | |
412 | fsrprintf(_("out of memory: %s\n"), strerror(errno)); | |
413 | exit(1); | |
414 | } | |
415 | fsend = (fsbase + fsbufsize - 1); | |
416 | ||
417 | /* find all rw xfs file systems */ | |
418 | mi = 0; | |
419 | fs = fsbase; | |
7141fc5b JT |
420 | |
421 | if (platform_mntent_open(&cursor, mtab) != 0){ | |
422 | fprintf(stderr, "Error: can't get mntent entries.\n"); | |
423 | exit(1); | |
424 | } | |
425 | ||
7849d55d | 426 | while ((mnt = platform_mntent_next(&cursor)) != NULL) { |
c988ea91 CH |
427 | int rw = 0; |
428 | ||
7849d55d | 429 | if (strcmp(mnt->mnt_type, MNTTYPE_XFS ) != 0 || |
f594a0d1 | 430 | stat(mnt->mnt_fsname, &sb) == -1 || |
c988ea91 CH |
431 | !S_ISBLK(sb.st_mode)) |
432 | continue; | |
433 | ||
7849d55d | 434 | cp = strtok(mnt->mnt_opts,","); |
c988ea91 CH |
435 | do { |
436 | if (strcmp("rw", cp) == 0) | |
437 | rw++; | |
438 | } while ((cp = strtok(NULL, ",")) != NULL); | |
439 | if (rw == 0) { | |
440 | if (dflag) | |
441 | fsrprintf(_("Skipping %s: not mounted rw\n"), | |
7849d55d | 442 | mnt->mnt_fsname); |
c988ea91 CH |
443 | continue; |
444 | } | |
445 | ||
446 | if (mi == fsbufsize) { | |
447 | fsbufsize += NMOUNT; | |
448 | if ((fsbase = (fsdesc_t *)realloc((char *)fsbase, | |
449 | fsbufsize * sizeof(fsdesc_t))) == NULL) { | |
450 | fsrprintf(_("out of memory: %s\n"), | |
451 | strerror(errno)); | |
452 | exit(1); | |
453 | } | |
454 | if (!fsbase) { | |
455 | fsrprintf(_("out of memory on realloc: %s\n"), | |
456 | strerror(errno)); | |
457 | exit(1); | |
458 | } | |
459 | fs = (fsbase + mi); /* Needed ? */ | |
460 | } | |
461 | ||
7849d55d ES |
462 | fs->dev = strdup(mnt->mnt_fsname); |
463 | fs->mnt = strdup(mnt->mnt_dir); | |
c988ea91 | 464 | |
758bcc92 | 465 | if (fs->dev == NULL) { |
7849d55d | 466 | fsrprintf(_("strdup(%s) failed\n"), mnt->mnt_fsname); |
c988ea91 CH |
467 | exit(1); |
468 | } | |
758bcc92 | 469 | if (fs->mnt == NULL) { |
7849d55d | 470 | fsrprintf(_("strdup(%s) failed\n"), mnt->mnt_dir); |
758bcc92 ES |
471 | exit(1); |
472 | } | |
c988ea91 CH |
473 | mi++; |
474 | fs++; | |
475 | } | |
7141fc5b JT |
476 | platform_mntent_close(&cursor); |
477 | ||
c988ea91 CH |
478 | numfs = mi; |
479 | fsend = (fsbase + numfs); | |
c988ea91 CH |
480 | if (numfs == 0) { |
481 | fsrprintf(_("no rw xfs file systems in mtab: %s\n"), mtab); | |
482 | exit(0); | |
483 | } | |
484 | if (vflag || dflag) { | |
485 | fsrprintf(_("Found %d mounted, writable, XFS filesystems\n"), | |
486 | numfs); | |
487 | if (dflag) | |
488 | for (fs = fsbase; fs < fsend; fs++) | |
489 | fsrprintf("\t%-30.30s%-30.30s\n", fs->dev, fs->mnt); | |
490 | } | |
491 | } | |
492 | ||
493 | static void | |
89e4b5bd | 494 | fsrallfs(char *mtab, int howlong, char *leftofffile) |
c988ea91 CH |
495 | { |
496 | int fd; | |
497 | int error; | |
498 | int found = 0; | |
499 | char *fsname; | |
500 | char buf[SMBUFSZ]; | |
501 | int mdonly = Mflag; | |
502 | char *ptr; | |
503 | xfs_ino_t startino = 0; | |
504 | fsdesc_t *fsp; | |
f594a0d1 | 505 | struct stat sb, sb2; |
c988ea91 CH |
506 | |
507 | fsrprintf("xfs_fsr -m %s -t %d -f %s ...\n", mtab, howlong, leftofffile); | |
508 | ||
509 | endtime = starttime + howlong; | |
510 | fs = fsbase; | |
511 | ||
512 | /* where'd we leave off last time? */ | |
f594a0d1 | 513 | if (lstat(leftofffile, &sb) == 0) { |
c988ea91 CH |
514 | if ( (fd = open(leftofffile, O_RDONLY)) == -1 ) { |
515 | fsrprintf(_("%s: open failed\n"), leftofffile); | |
516 | } | |
f594a0d1 | 517 | else if ( fstat(fd, &sb2) == 0) { |
c988ea91 CH |
518 | /* |
519 | * Verify that lstat & fstat point to the | |
520 | * same regular file (no links/no quick spoofs) | |
521 | */ | |
522 | if ( (sb.st_dev != sb2.st_dev) || | |
523 | (sb.st_ino != sb2.st_ino) || | |
524 | ((sb.st_mode & S_IFMT) != S_IFREG) || | |
525 | ((sb2.st_mode & S_IFMT) != S_IFREG) || | |
526 | (sb2.st_uid != ROOT) || | |
527 | (sb2.st_nlink != 1) | |
528 | ) | |
529 | { | |
530 | fsrprintf(_("Can't use %s: mode=0%o own=%d" | |
531 | " nlink=%d\n"), | |
532 | leftofffile, sb.st_mode, | |
533 | sb.st_uid, sb.st_nlink); | |
534 | close(fd); | |
535 | fd = NULLFD; | |
536 | } | |
537 | } | |
538 | else { | |
539 | close(fd); | |
540 | fd = NULLFD; | |
541 | } | |
542 | } | |
543 | else { | |
544 | fd = NULLFD; | |
545 | } | |
546 | ||
547 | if (fd != NULLFD) { | |
548 | if (read(fd, buf, SMBUFSZ) == -1) { | |
549 | fs = fsbase; | |
550 | fsrprintf(_("could not read %s, starting with %s\n"), | |
551 | leftofffile, *fs->dev); | |
552 | } else { | |
eef20df0 ES |
553 | /* Ensure the buffer we read is null terminated */ |
554 | buf[SMBUFSZ-1] = '\0'; | |
c988ea91 CH |
555 | for (fs = fsbase; fs < fsend; fs++) { |
556 | fsname = fs->dev; | |
557 | if ((strncmp(buf,fsname,strlen(fsname)) == 0) | |
558 | && buf[strlen(fsname)] == ' ') { | |
559 | found = 1; | |
560 | break; | |
561 | } | |
562 | } | |
563 | if (! found) | |
564 | fs = fsbase; | |
565 | ||
566 | ptr = strchr(buf, ' '); | |
567 | if (ptr) { | |
568 | startpass = atoi(++ptr); | |
569 | ptr = strchr(ptr, ' '); | |
570 | if (ptr) { | |
571 | startino = strtoull(++ptr, NULL, 10); | |
572 | } | |
573 | } | |
574 | if (startpass < 0) | |
575 | startpass = 0; | |
576 | ||
577 | /* Init pass counts */ | |
578 | for (fsp = fsbase; fsp < fs; fsp++) { | |
579 | fsp->npass = startpass + 1; | |
580 | } | |
581 | for (fsp = fs; fsp <= fsend; fsp++) { | |
582 | fsp->npass = startpass; | |
583 | } | |
584 | } | |
585 | close(fd); | |
586 | } | |
587 | ||
588 | if (vflag) { | |
589 | fsrprintf(_("START: pass=%d ino=%llu %s %s\n"), | |
590 | fs->npass, (unsigned long long)startino, | |
591 | fs->dev, fs->mnt); | |
592 | } | |
593 | ||
594 | signal(SIGABRT, aborter); | |
595 | signal(SIGHUP, aborter); | |
596 | signal(SIGINT, aborter); | |
597 | signal(SIGQUIT, aborter); | |
598 | signal(SIGTERM, aborter); | |
599 | ||
600 | /* reorg for 'howlong' -- checked in 'fsrfs' */ | |
601 | while (endtime > time(0)) { | |
602 | pid_t pid; | |
603 | if (fs == fsend) | |
604 | fs = fsbase; | |
605 | if (fs->npass == npasses) { | |
606 | fsrprintf(_("Completed all %d passes\n"), npasses); | |
607 | break; | |
608 | } | |
609 | if (npasses > 1 && !fs->npass) | |
610 | Mflag = 1; | |
611 | else | |
612 | Mflag = mdonly; | |
613 | pid = fork(); | |
614 | switch(pid) { | |
615 | case -1: | |
616 | fsrprintf(_("couldn't fork sub process:")); | |
617 | exit(1); | |
618 | break; | |
619 | case 0: | |
620 | error = fsrfs(fs->mnt, startino, TARGETRANGE); | |
621 | exit (error); | |
622 | break; | |
623 | default: | |
624 | wait(&error); | |
c988ea91 CH |
625 | if (WIFEXITED(error) && WEXITSTATUS(error) == 1) { |
626 | /* child timed out & did fsrall_cleanup */ | |
627 | exit(0); | |
628 | } | |
629 | break; | |
630 | } | |
631 | startino = 0; /* reset after the first time through */ | |
632 | fs->npass++; | |
633 | fs++; | |
634 | } | |
635 | fsrall_cleanup(endtime <= time(0)); | |
636 | } | |
637 | ||
638 | /* | |
639 | * fsrall_cleanup -- close files, print next starting location, etc. | |
640 | */ | |
641 | static void | |
642 | fsrall_cleanup(int timeout) | |
643 | { | |
644 | int fd; | |
645 | int ret; | |
646 | char buf[SMBUFSZ]; | |
647 | ||
c988ea91 | 648 | unlink(leftofffile); |
d0e82db1 ES |
649 | |
650 | if (timeout) { | |
651 | fsrprintf(_("%s startpass %d, endpass %d, time %d seconds\n"), | |
652 | progname, startpass, fs->npass, | |
653 | time(0) - endtime + howlong); | |
654 | ||
655 | /* record where we left off */ | |
656 | fd = open(leftofffile, O_WRONLY|O_CREAT|O_EXCL, 0644); | |
657 | if (fd == -1) { | |
658 | fsrprintf(_("open(%s) failed: %s\n"), | |
659 | leftofffile, strerror(errno)); | |
660 | } else { | |
c988ea91 CH |
661 | ret = sprintf(buf, "%s %d %llu\n", fs->dev, |
662 | fs->npass, (unsigned long long)leftoffino); | |
663 | if (write(fd, buf, ret) < strlen(buf)) | |
664 | fsrprintf(_("write(%s) failed: %s\n"), | |
665 | leftofffile, strerror(errno)); | |
666 | close(fd); | |
667 | } | |
668 | } | |
c988ea91 CH |
669 | } |
670 | ||
671 | /* | |
672 | * fsrfs -- reorganize a file system | |
673 | */ | |
674 | static int | |
675 | fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) | |
676 | { | |
677 | ||
678 | int fsfd, fd; | |
679 | int count = 0; | |
680 | int ret; | |
681 | __s32 buflenout; | |
682 | xfs_bstat_t buf[GRABSZ]; | |
683 | char fname[64]; | |
684 | char *tname; | |
685 | jdm_fshandle_t *fshandlep; | |
686 | xfs_ino_t lastino = startino; | |
687 | ||
688 | fsrprintf(_("%s start inode=%llu\n"), mntdir, | |
689 | (unsigned long long)startino); | |
690 | ||
691 | fshandlep = jdm_getfshandle( mntdir ); | |
692 | if ( ! fshandlep ) { | |
693 | fsrprintf(_("unable to get handle: %s: %s\n"), | |
694 | mntdir, strerror( errno )); | |
695 | return -1; | |
696 | } | |
697 | ||
698 | if ((fsfd = open(mntdir, O_RDONLY)) < 0) { | |
699 | fsrprintf(_("unable to open: %s: %s\n"), | |
700 | mntdir, strerror( errno )); | |
e3e2793d | 701 | free(fshandlep); |
c988ea91 CH |
702 | return -1; |
703 | } | |
704 | ||
705 | if (xfs_getgeom(fsfd, &fsgeom) < 0 ) { | |
706 | fsrprintf(_("Skipping %s: could not get XFS geometry\n"), | |
707 | mntdir); | |
11e06961 | 708 | close(fsfd); |
e3e2793d | 709 | free(fshandlep); |
c988ea91 CH |
710 | return -1; |
711 | } | |
712 | ||
713 | tmp_init(mntdir); | |
714 | ||
715 | while ((ret = xfs_bulkstat(fsfd, | |
98166c91 | 716 | &lastino, GRABSZ, &buf[0], &buflenout)) == 0) { |
c988ea91 CH |
717 | xfs_bstat_t *p; |
718 | xfs_bstat_t *endp; | |
719 | ||
720 | if (buflenout == 0) | |
721 | goto out0; | |
722 | ||
723 | /* Each loop through, defrag targetrange percent of the files */ | |
724 | count = (buflenout * targetrange) / 100; | |
725 | ||
726 | qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp); | |
727 | ||
728 | for (p = buf, endp = (buf + buflenout); p < endp ; p++) { | |
729 | /* Do some obvious checks now */ | |
730 | if (((p->bs_mode & S_IFMT) != S_IFREG) || | |
731 | (p->bs_extents < 2)) | |
732 | continue; | |
733 | ||
108e985b DC |
734 | fd = jdm_open(fshandlep, p, O_RDWR|O_DIRECT); |
735 | if (fd < 0) { | |
c988ea91 CH |
736 | /* This probably means the file was |
737 | * removed while in progress of handling | |
738 | * it. Just quietly ignore this file. | |
739 | */ | |
740 | if (dflag) | |
741 | fsrprintf(_("could not open: " | |
742 | "inode %llu\n"), p->bs_ino); | |
743 | continue; | |
744 | } | |
745 | ||
746 | /* Don't know the pathname, so make up something */ | |
747 | sprintf(fname, "ino=%lld", (long long)p->bs_ino); | |
748 | ||
749 | /* Get a tmp file name */ | |
750 | tname = tmp_next(mntdir); | |
751 | ||
752 | ret = fsrfile_common(fname, tname, mntdir, fd, p); | |
753 | ||
754 | leftoffino = p->bs_ino; | |
755 | ||
756 | close(fd); | |
757 | ||
758 | if (ret == 0) { | |
759 | if (--count <= 0) | |
760 | break; | |
761 | } | |
762 | } | |
763 | if (endtime && endtime < time(0)) { | |
764 | tmp_close(mntdir); | |
765 | close(fsfd); | |
766 | fsrall_cleanup(1); | |
767 | exit(1); | |
768 | } | |
769 | } | |
770 | if (ret < 0) | |
771 | fsrprintf(_("%s: xfs_bulkstat: %s\n"), progname, strerror(errno)); | |
772 | out0: | |
773 | tmp_close(mntdir); | |
774 | close(fsfd); | |
e3e2793d | 775 | free(fshandlep); |
c988ea91 CH |
776 | return 0; |
777 | } | |
778 | ||
779 | /* | |
780 | * To compare bstat structs for qsort. | |
781 | */ | |
782 | int | |
783 | cmp(const void *s1, const void *s2) | |
784 | { | |
785 | return( ((xfs_bstat_t *)s2)->bs_extents - | |
786 | ((xfs_bstat_t *)s1)->bs_extents); | |
787 | ||
788 | } | |
789 | ||
790 | /* | |
791 | * reorganize by directory hierarchy. | |
792 | * Stay in dev (a restriction based on structure of this program -- either | |
793 | * call efs_{n,u}mount() around each file, something smarter or this) | |
794 | */ | |
795 | static void | |
796 | fsrdir(char *dirname) | |
797 | { | |
798 | fsrprintf(_("%s: Directory defragmentation not supported\n"), dirname); | |
799 | } | |
800 | ||
801 | /* | |
802 | * Sets up the defragmentation of a file based on the | |
803 | * filepath. It collects the bstat information, does | |
804 | * an open on the file and passes this all to fsrfile_common. | |
805 | */ | |
806 | static int | |
807 | fsrfile(char *fname, xfs_ino_t ino) | |
808 | { | |
809 | xfs_bstat_t statbuf; | |
810 | jdm_fshandle_t *fshandlep; | |
4f10a2fb ES |
811 | int fd = -1, fsfd = -1; |
812 | int error = -1; | |
c988ea91 CH |
813 | char *tname; |
814 | ||
815 | fshandlep = jdm_getfshandle(getparent (fname) ); | |
4f10a2fb | 816 | if (!fshandlep) { |
c988ea91 CH |
817 | fsrprintf(_("unable to construct sys handle for %s: %s\n"), |
818 | fname, strerror(errno)); | |
4f10a2fb | 819 | goto out; |
c988ea91 CH |
820 | } |
821 | ||
822 | /* | |
823 | * Need to open something on the same filesystem as the | |
824 | * file. Open the parent. | |
825 | */ | |
826 | fsfd = open(getparent(fname), O_RDONLY); | |
827 | if (fsfd < 0) { | |
828 | fsrprintf(_("unable to open sys handle for %s: %s\n"), | |
829 | fname, strerror(errno)); | |
4f10a2fb | 830 | goto out; |
c988ea91 CH |
831 | } |
832 | ||
833 | if ((xfs_bulkstat_single(fsfd, &ino, &statbuf)) < 0) { | |
834 | fsrprintf(_("unable to get bstat on %s: %s\n"), | |
835 | fname, strerror(errno)); | |
4f10a2fb | 836 | goto out; |
c988ea91 CH |
837 | } |
838 | ||
108e985b | 839 | fd = jdm_open(fshandlep, &statbuf, O_RDWR|O_DIRECT); |
c988ea91 CH |
840 | if (fd < 0) { |
841 | fsrprintf(_("unable to open handle %s: %s\n"), | |
842 | fname, strerror(errno)); | |
4f10a2fb | 843 | goto out; |
c988ea91 CH |
844 | } |
845 | ||
846 | /* Get the fs geometry */ | |
847 | if (xfs_getgeom(fsfd, &fsgeom) < 0 ) { | |
848 | fsrprintf(_("Unable to get geom on fs for: %s\n"), fname); | |
4f10a2fb | 849 | goto out; |
c988ea91 CH |
850 | } |
851 | ||
c988ea91 CH |
852 | tname = gettmpname(fname); |
853 | ||
854 | if (tname) | |
855 | error = fsrfile_common(fname, tname, NULL, fd, &statbuf); | |
856 | ||
4f10a2fb ES |
857 | out: |
858 | if (fsfd >= 0) | |
859 | close(fsfd); | |
860 | if (fd >= 0) | |
861 | close(fd); | |
862 | free(fshandlep); | |
c988ea91 CH |
863 | |
864 | return error; | |
865 | } | |
866 | ||
867 | ||
868 | /* | |
869 | * This is the common defrag code for either a full fs | |
870 | * defragmentation or a single file. Check as much as | |
871 | * possible with the file, fork a process to setuid to the | |
872 | * target file owner's uid and defragment the file. | |
873 | * This is done so the new extents created in a tmp file are | |
874 | * reflected in the owners' quota without having to do any | |
875 | * special code in the kernel. When the existing extents | |
876 | * are removed, the quotas will be correct. It's ugly but | |
877 | * it saves us from doing some quota re-construction in | |
878 | * the extent swap. The price is that the defragmentation | |
879 | * will fail if the owner of the target file is already at | |
880 | * their quota limit. | |
881 | */ | |
882 | static int | |
883 | fsrfile_common( | |
884 | char *fname, | |
885 | char *tname, | |
886 | char *fsname, | |
887 | int fd, | |
888 | xfs_bstat_t *statp) | |
889 | { | |
890 | int error; | |
891 | struct statvfs64 vfss; | |
892 | struct fsxattr fsx; | |
893 | unsigned long bsize; | |
894 | ||
895 | if (vflag) | |
896 | fsrprintf("%s\n", fname); | |
897 | ||
898 | if (fsync(fd) < 0) { | |
899 | fsrprintf(_("sync failed: %s: %s\n"), fname, strerror(errno)); | |
900 | return -1; | |
901 | } | |
902 | ||
903 | if (statp->bs_size == 0) { | |
904 | if (vflag) | |
905 | fsrprintf(_("%s: zero size, ignoring\n"), fname); | |
906 | return(0); | |
907 | } | |
908 | ||
909 | /* Check if a mandatory lock is set on the file to try and | |
910 | * avoid blocking indefinitely on the reads later. Note that | |
911 | * someone could still set a mandatory lock after this check | |
912 | * but before all reads have completed to block fsr reads. | |
913 | * This change just closes the window a bit. | |
914 | */ | |
915 | if ( (statp->bs_mode & S_ISGID) && ( ! (statp->bs_mode&S_IXGRP) ) ) { | |
916 | struct flock fl; | |
917 | ||
918 | fl.l_type = F_RDLCK; | |
919 | fl.l_whence = SEEK_SET; | |
920 | fl.l_start = (off_t)0; | |
921 | fl.l_len = 0; | |
922 | if ((fcntl(fd, F_GETLK, &fl)) < 0 ) { | |
923 | if (vflag) | |
924 | fsrprintf(_("locking check failed: %s\n"), | |
925 | fname); | |
926 | return(-1); | |
927 | } | |
928 | if (fl.l_type != F_UNLCK) { | |
929 | /* Mandatory lock is set */ | |
930 | if (vflag) | |
931 | fsrprintf(_("mandatory lock: %s: ignoring\n"), | |
932 | fname); | |
933 | return(-1); | |
934 | } | |
935 | } | |
936 | ||
937 | /* | |
938 | * Check if there is room to copy the file. | |
939 | * | |
940 | * Note that xfs_bstat.bs_blksize returns the filesystem blocksize, | |
941 | * not the optimal I/O size as struct stat. | |
942 | */ | |
943 | if (statvfs64(fsname ? fsname : fname, &vfss) < 0) { | |
944 | fsrprintf(_("unable to get fs stat on %s: %s\n"), | |
945 | fname, strerror(errno)); | |
946 | return -1; | |
947 | } | |
b35b4eb8 | 948 | #ifndef statvfs64 |
c988ea91 | 949 | bsize = vfss.f_frsize ? vfss.f_frsize : vfss.f_bsize; |
b35b4eb8 JT |
950 | #else |
951 | bsize = vfss.f_bsize; | |
952 | #endif | |
c988ea91 CH |
953 | if (statp->bs_blksize * statp->bs_blocks > |
954 | vfss.f_bfree * bsize - minimumfree) { | |
955 | fsrprintf(_("insufficient freespace for: %s: " | |
956 | "size=%lld: ignoring\n"), fname, | |
957 | statp->bs_blksize * statp->bs_blocks); | |
958 | return 1; | |
959 | } | |
960 | ||
83f4b5ac | 961 | if ((ioctl(fd, FS_IOC_FSGETXATTR, &fsx)) < 0) { |
c988ea91 CH |
962 | fsrprintf(_("failed to get inode attrs: %s\n"), fname); |
963 | return(-1); | |
964 | } | |
83f4b5ac | 965 | if (fsx.fsx_xflags & (FS_XFLAG_IMMUTABLE|FS_XFLAG_APPEND)) { |
c988ea91 CH |
966 | if (vflag) |
967 | fsrprintf(_("%s: immutable/append, ignoring\n"), fname); | |
968 | return(0); | |
969 | } | |
83f4b5ac | 970 | if (fsx.fsx_xflags & FS_XFLAG_NODEFRAG) { |
c988ea91 CH |
971 | if (vflag) |
972 | fsrprintf(_("%s: marked as don't defrag, ignoring\n"), | |
973 | fname); | |
974 | return(0); | |
975 | } | |
83f4b5ac | 976 | if (fsx.fsx_xflags & FS_XFLAG_REALTIME) { |
c988ea91 CH |
977 | if (xfs_getrt(fd, &vfss) < 0) { |
978 | fsrprintf(_("cannot get realtime geometry for: %s\n"), | |
979 | fname); | |
980 | return(-1); | |
981 | } | |
982 | if (statp->bs_size > ((vfss.f_bfree * bsize) - minimumfree)) { | |
983 | fsrprintf(_("low on realtime free space: %s: " | |
984 | "ignoring file\n"), fname); | |
985 | return(-1); | |
986 | } | |
987 | } | |
988 | ||
989 | if ((RealUid != ROOT) && (RealUid != statp->bs_uid)) { | |
990 | fsrprintf(_("cannot open: %s: Permission denied\n"), fname); | |
991 | return -1; | |
992 | } | |
993 | ||
994 | /* | |
995 | * Previously the code forked here, & the child changed it's uid to | |
996 | * that of the file's owner and then called packfile(), to keep | |
997 | * quota counts correct. (defragged files could use fewer blocks). | |
998 | * | |
999 | * Instead, just fchown() the temp file to the uid,gid of the | |
1000 | * file we're defragging, in packfile(). | |
1001 | */ | |
1002 | ||
1003 | if ((error = packfile(fname, tname, fd, statp, &fsx))) | |
1004 | return error; | |
1005 | return -1; /* no error */ | |
1006 | } | |
1007 | ||
bdb041f5 DC |
1008 | /* |
1009 | * Attempt to set the attr fork up correctly. This is simple for attr1 | |
1010 | * filesystems as they have a fixed inode fork offset. In that case | |
1011 | * just create an attribute and that's all we need to do. | |
1012 | * | |
1013 | * For attr2 filesystems, see if we have the actual fork offset in | |
1014 | * the bstat structure. If so, just create additional attributes on | |
1015 | * the temporary inode until the offset matches. | |
1016 | * | |
1017 | * If it doesn't exist, we can only do best effort. Add an attribute at a time | |
1018 | * to move the inode fork around, but take into account that the attribute | |
1019 | * might be too small to move the fork every time we add one. This should | |
1020 | * hopefully put the fork offset in the right place. It's not a big deal if we | |
1021 | * don't get it right - the kernel will reject it when we try to swap extents. | |
1022 | */ | |
1023 | static int | |
1024 | fsr_setup_attr_fork( | |
1025 | int fd, | |
1026 | int tfd, | |
1027 | xfs_bstat_t *bstatp) | |
1028 | { | |
c14c7b79 | 1029 | #ifdef HAVE_FSETXATTR |
f594a0d1 | 1030 | struct stat tstatbuf; |
bdb041f5 | 1031 | int i; |
27507775 | 1032 | int diff = 0; |
bdb041f5 DC |
1033 | int last_forkoff = 0; |
1034 | int no_change_cnt = 0; | |
1035 | int ret; | |
1036 | ||
83f4b5ac | 1037 | if (!(bstatp->bs_xflags & FS_XFLAG_HASATTR)) |
bdb041f5 DC |
1038 | return 0; |
1039 | ||
1040 | /* | |
1041 | * use the old method if we have attr1 or the kernel does not yet | |
1042 | * support passing the fork offset in the bulkstat data. | |
1043 | */ | |
1044 | if (!(fsgeom.flags & XFS_FSOP_GEOM_FLAGS_ATTR2) || | |
1045 | bstatp->bs_forkoff == 0) { | |
1046 | /* attr1 */ | |
1047 | ret = fsetxattr(tfd, "user.X", "X", 1, XATTR_CREATE); | |
1048 | if (ret) { | |
1049 | fsrprintf(_("could not set ATTR\n")); | |
1050 | return -1; | |
1051 | } | |
1052 | goto out; | |
1053 | } | |
1054 | ||
1055 | /* attr2 w/ fork offsets */ | |
1056 | ||
f594a0d1 | 1057 | if (fstat(tfd, &tstatbuf) < 0) { |
bdb041f5 DC |
1058 | fsrprintf(_("unable to stat temp file: %s\n"), |
1059 | strerror(errno)); | |
1060 | return -1; | |
1061 | } | |
1062 | ||
1063 | i = 0; | |
1064 | do { | |
1065 | xfs_bstat_t tbstat; | |
1066 | xfs_ino_t ino; | |
1067 | char name[64]; | |
bdb041f5 DC |
1068 | |
1069 | /* | |
1adfe5c6 | 1070 | * bulkstat the temp inode to see what the forkoff is. Use |
bdb041f5 DC |
1071 | * this to compare against the target and determine what we |
1072 | * need to do. | |
1073 | */ | |
1074 | ino = tstatbuf.st_ino; | |
1075 | if ((xfs_bulkstat_single(tfd, &ino, &tbstat)) < 0) { | |
1076 | fsrprintf(_("unable to get bstat on temp file: %s\n"), | |
1077 | strerror(errno)); | |
1078 | return -1; | |
1079 | } | |
1080 | if (dflag) | |
1081 | fsrprintf(_("orig forkoff %d, temp forkoff %d\n"), | |
1082 | bstatp->bs_forkoff, tbstat.bs_forkoff); | |
1adfe5c6 ES |
1083 | diff = tbstat.bs_forkoff - bstatp->bs_forkoff; |
1084 | ||
1085 | /* if they are equal, we are done */ | |
1086 | if (!diff) | |
1087 | goto out; | |
bdb041f5 DC |
1088 | |
1089 | snprintf(name, sizeof(name), "user.%d", i); | |
1090 | ||
1091 | /* | |
1092 | * If there is no attribute, then we need to create one to get | |
1093 | * an attribute fork at the default location. | |
1094 | */ | |
1095 | if (!tbstat.bs_forkoff) { | |
1adfe5c6 | 1096 | ASSERT(i == 0); |
bdb041f5 DC |
1097 | ret = fsetxattr(tfd, name, "XX", 2, XATTR_CREATE); |
1098 | if (ret) { | |
1099 | fsrprintf(_("could not set ATTR\n")); | |
1100 | return -1; | |
1101 | } | |
1102 | continue; | |
1adfe5c6 | 1103 | } else if (i == 0) { |
1adfe5c6 ES |
1104 | /* |
1105 | * First pass, and temp file already has an inline | |
1106 | * xattr, probably due to selinux. | |
1107 | * | |
1108 | * It's *possible* that the temp file attr area | |
e7e3152c | 1109 | * is larger than the target file's: |
1adfe5c6 ES |
1110 | * |
1111 | * Target Temp | |
1112 | * +-------+ 0 +-------+ 0 | |
1113 | * | | | | | |
1114 | * | | | Data | | |
1115 | * | Data | | | | |
1116 | * | | v-------v forkoff | |
1117 | * | | | | | |
1118 | * v-------v forkoff | Attr | local | |
e7e3152c | 1119 | * | Attr | | | |
1adfe5c6 | 1120 | * +-------+ +-------+ |
1adfe5c6 ES |
1121 | */ |
1122 | ||
1adfe5c6 | 1123 | /* |
e7e3152c ES |
1124 | * If target attr area is less than the temp's |
1125 | * (diff < 0) write a big attr to the temp file to knock | |
1126 | * the attr out of local format. | |
1127 | * (This should actually *increase* the temp file's | |
1128 | * forkoffset when the attr moves out of the inode) | |
1adfe5c6 | 1129 | */ |
e7e3152c | 1130 | if (diff < 0) { |
1adfe5c6 ES |
1131 | char val[2048]; |
1132 | memset(val, 'X', 2048); | |
1133 | if (fsetxattr(tfd, name, val, 2048, 0)) { | |
1134 | fsrprintf(_("big ATTR set failed\n")); | |
1135 | return -1; | |
1136 | } | |
1137 | /* Go back & see where we're at now */ | |
1138 | continue; | |
1139 | } | |
bdb041f5 DC |
1140 | } |
1141 | ||
1142 | /* | |
1143 | * make a progress check so we don't get stuck trying to extend | |
1144 | * a large btree form attribute fork. | |
1145 | */ | |
1146 | if (last_forkoff == tbstat.bs_forkoff) { | |
1147 | if (no_change_cnt++ > 10) | |
1148 | break; | |
ff85ea3f ES |
1149 | } else /* progress! */ |
1150 | no_change_cnt = 0; | |
bdb041f5 DC |
1151 | last_forkoff = tbstat.bs_forkoff; |
1152 | ||
1153 | /* work out which way to grow the fork */ | |
bdb041f5 DC |
1154 | if (abs(diff) > fsgeom.inodesize - sizeof(struct xfs_dinode)) { |
1155 | fsrprintf(_("forkoff diff %d too large!\n"), diff); | |
1156 | return -1; | |
1157 | } | |
1158 | ||
bdb041f5 | 1159 | /* |
1adfe5c6 ES |
1160 | * if the temp inode fork offset is still smaller then we have |
1161 | * to grow the data fork | |
bdb041f5 DC |
1162 | */ |
1163 | if (diff < 0) { | |
1164 | /* | |
1165 | * create some temporary extents in the inode to move | |
1166 | * the fork in the direction we need. This can be done | |
1167 | * by preallocating some single block extents at | |
1168 | * non-contiguous offsets. | |
1169 | */ | |
1170 | /* XXX: unimplemented! */ | |
27507775 ES |
1171 | if (dflag) |
1172 | printf(_("data fork growth unimplemented\n")); | |
bdb041f5 DC |
1173 | goto out; |
1174 | } | |
1175 | ||
1176 | /* we need to grow the attr fork, so create another attr */ | |
1177 | ret = fsetxattr(tfd, name, "XX", 2, XATTR_CREATE); | |
1178 | if (ret) { | |
1179 | fsrprintf(_("could not set ATTR\n")); | |
1180 | return -1; | |
1181 | } | |
1182 | ||
1183 | } while (++i < 100); /* don't go forever */ | |
1184 | ||
1185 | out: | |
1186 | if (dflag) | |
1187 | fsrprintf(_("set temp attr\n")); | |
27507775 ES |
1188 | /* We failed to resolve the fork difference */ |
1189 | if (dflag && diff) | |
1190 | fsrprintf(_("failed to match fork offset\n"));; | |
1191 | ||
c14c7b79 | 1192 | #endif /* HAVE_FSETXATTR */ |
bdb041f5 DC |
1193 | return 0; |
1194 | } | |
c988ea91 CH |
1195 | |
1196 | /* | |
1197 | * Do the defragmentation of a single file. | |
1198 | * We already are pretty sure we can and want to | |
1199 | * defragment the file. Create the tmp file, copy | |
1200 | * the data (maintaining holes) and call the kernel | |
671632c6 ES |
1201 | * extent swap routine. |
1202 | * | |
1203 | * Return values: | |
1204 | * -1: Some error was encountered | |
1205 | * 0: Successfully defragmented the file | |
1206 | * 1: No change / No Error | |
c988ea91 CH |
1207 | */ |
1208 | static int | |
1209 | packfile(char *fname, char *tname, int fd, | |
1210 | xfs_bstat_t *statp, struct fsxattr *fsxp) | |
1211 | { | |
671632c6 | 1212 | int tfd = -1; |
c988ea91 | 1213 | int srval; |
671632c6 | 1214 | int retval = -1; /* Failure is the default */ |
c988ea91 CH |
1215 | int nextents, extent, cur_nextents, new_nextents; |
1216 | unsigned blksz_dio; | |
1217 | unsigned dio_min; | |
1218 | struct dioattr dio; | |
1219 | static xfs_swapext_t sx; | |
1220 | struct xfs_flock64 space; | |
1221 | off64_t cnt, pos; | |
671632c6 | 1222 | void *fbuf = NULL; |
c988ea91 CH |
1223 | int ct, wc, wc_b4; |
1224 | char ffname[SMBUFSZ]; | |
1225 | int ffd = -1; | |
1226 | ||
1227 | /* | |
1228 | * Work out the extent map - nextents will be set to the | |
1229 | * minimum number of extents needed for the file (taking | |
1230 | * into account holes), cur_nextents is the current number | |
1231 | * of extents. | |
1232 | */ | |
1233 | nextents = read_fd_bmap(fd, statp, &cur_nextents); | |
1234 | ||
1235 | if (cur_nextents == 1 || cur_nextents <= nextents) { | |
1236 | if (vflag) | |
1237 | fsrprintf(_("%s already fully defragmented.\n"), fname); | |
671632c6 ES |
1238 | retval = 1; /* indicates no change/no error */ |
1239 | goto out; | |
c988ea91 CH |
1240 | } |
1241 | ||
1242 | if (dflag) | |
1243 | fsrprintf(_("%s extents=%d can_save=%d tmp=%s\n"), | |
1244 | fname, cur_nextents, (cur_nextents - nextents), | |
1245 | tname); | |
1246 | ||
1247 | if ((tfd = open(tname, openopts, 0666)) < 0) { | |
1248 | if (vflag) | |
1249 | fsrprintf(_("could not open tmp file: %s: %s\n"), | |
1250 | tname, strerror(errno)); | |
671632c6 | 1251 | goto out; |
c988ea91 CH |
1252 | } |
1253 | unlink(tname); | |
1254 | ||
1255 | /* Setup extended attributes */ | |
bdb041f5 DC |
1256 | if (fsr_setup_attr_fork(fd, tfd, statp) != 0) { |
1257 | fsrprintf(_("failed to set ATTR fork on tmp: %s:\n"), tname); | |
671632c6 | 1258 | goto out; |
c988ea91 CH |
1259 | } |
1260 | ||
1261 | /* Setup extended inode flags, project identifier, etc */ | |
1262 | if (fsxp->fsx_xflags || fsxp->fsx_projid) { | |
83f4b5ac | 1263 | if (ioctl(tfd, FS_IOC_FSSETXATTR, fsxp) < 0) { |
c988ea91 CH |
1264 | fsrprintf(_("could not set inode attrs on tmp: %s\n"), |
1265 | tname); | |
671632c6 | 1266 | goto out; |
c988ea91 CH |
1267 | } |
1268 | } | |
1269 | ||
1270 | if ((ioctl(tfd, XFS_IOC_DIOINFO, &dio)) < 0 ) { | |
1271 | fsrprintf(_("could not get DirectIO info on tmp: %s\n"), tname); | |
671632c6 | 1272 | goto out; |
c988ea91 CH |
1273 | } |
1274 | ||
1275 | dio_min = dio.d_miniosz; | |
1276 | if (statp->bs_size <= dio_min) { | |
1277 | blksz_dio = dio_min; | |
1278 | } else { | |
1279 | blksz_dio = min(dio.d_maxiosz, BUFFER_MAX - pagesize); | |
1280 | if (argv_blksz_dio != 0) | |
1281 | blksz_dio = min(argv_blksz_dio, blksz_dio); | |
1282 | blksz_dio = (min(statp->bs_size, blksz_dio) / dio_min) * dio_min; | |
1283 | } | |
1284 | ||
1285 | if (dflag) { | |
1286 | fsrprintf(_("DEBUG: " | |
1287 | "fsize=%lld blsz_dio=%d d_min=%d d_max=%d pgsz=%d\n"), | |
1288 | statp->bs_size, blksz_dio, dio.d_miniosz, | |
1289 | dio.d_maxiosz, pagesize); | |
1290 | } | |
1291 | ||
1292 | if (!(fbuf = (char *)memalign(dio.d_mem, blksz_dio))) { | |
1293 | fsrprintf(_("could not allocate buf: %s\n"), tname); | |
671632c6 | 1294 | goto out; |
c988ea91 CH |
1295 | } |
1296 | ||
1297 | if (nfrags) { | |
1298 | /* Create new tmp file in same AG as first */ | |
1299 | sprintf(ffname, "%s.frag", tname); | |
1300 | ||
1301 | /* Open the new file for sync writes */ | |
1302 | if ((ffd = open(ffname, openopts, 0666)) < 0) { | |
1303 | fsrprintf(_("could not open fragfile: %s : %s\n"), | |
1304 | ffname, strerror(errno)); | |
671632c6 | 1305 | goto out; |
c988ea91 CH |
1306 | } |
1307 | unlink(ffname); | |
1308 | } | |
1309 | ||
1310 | /* Loop through block map allocating new extents */ | |
1311 | for (extent = 0; extent < nextents; extent++) { | |
1312 | pos = outmap[extent].bmv_offset; | |
1313 | if (outmap[extent].bmv_block == -1) { | |
1314 | space.l_whence = SEEK_SET; | |
1315 | space.l_start = pos; | |
1316 | space.l_len = outmap[extent].bmv_length; | |
1317 | if (ioctl(tfd, XFS_IOC_UNRESVSP64, &space) < 0) { | |
1318 | fsrprintf(_("could not trunc tmp %s\n"), | |
1319 | tname); | |
1320 | } | |
dc8878f4 | 1321 | if (lseek(tfd, outmap[extent].bmv_length, SEEK_CUR) < 0) { |
3d303baa ES |
1322 | fsrprintf(_("could not lseek in tmpfile: %s : %s\n"), |
1323 | tname, strerror(errno)); | |
1324 | goto out; | |
1325 | } | |
c988ea91 CH |
1326 | continue; |
1327 | } else if (outmap[extent].bmv_length == 0) { | |
1328 | /* to catch holes at the beginning of the file */ | |
1329 | continue; | |
1330 | } | |
1331 | if (! nfrags) { | |
1332 | space.l_whence = SEEK_CUR; | |
1333 | space.l_start = 0; | |
1334 | space.l_len = outmap[extent].bmv_length; | |
1335 | ||
1336 | if (ioctl(tfd, XFS_IOC_RESVSP64, &space) < 0) { | |
1337 | fsrprintf(_("could not pre-allocate tmp space:" | |
1338 | " %s\n"), tname); | |
671632c6 | 1339 | goto out; |
c988ea91 | 1340 | } |
dc8878f4 | 1341 | if (lseek(tfd, outmap[extent].bmv_length, SEEK_CUR) < 0) { |
3d303baa ES |
1342 | fsrprintf(_("could not lseek in tmpfile: %s : %s\n"), |
1343 | tname, strerror(errno)); | |
1344 | goto out; | |
1345 | } | |
c988ea91 CH |
1346 | } |
1347 | } /* end of space allocation loop */ | |
1348 | ||
dc8878f4 | 1349 | if (lseek(tfd, 0, SEEK_SET)) { |
c988ea91 | 1350 | fsrprintf(_("Couldn't rewind on temporary file\n")); |
671632c6 | 1351 | goto out; |
c988ea91 CH |
1352 | } |
1353 | ||
1354 | /* Check if the temporary file has fewer extents */ | |
1355 | new_nextents = getnextents(tfd); | |
1356 | if (dflag) | |
1357 | fsrprintf(_("Temporary file has %d extents (%d in original)\n"), new_nextents, cur_nextents); | |
1358 | if (cur_nextents <= new_nextents) { | |
1359 | if (vflag) | |
1360 | fsrprintf(_("No improvement will be made (skipping): %s\n"), fname); | |
671632c6 ES |
1361 | retval = 1; /* no change/no error */ |
1362 | goto out; | |
c988ea91 CH |
1363 | } |
1364 | ||
1365 | /* Loop through block map copying the file. */ | |
1366 | for (extent = 0; extent < nextents; extent++) { | |
1367 | pos = outmap[extent].bmv_offset; | |
1368 | if (outmap[extent].bmv_block == -1) { | |
dc8878f4 | 1369 | if (lseek(tfd, outmap[extent].bmv_length, SEEK_CUR) < 0) { |
3d303baa ES |
1370 | fsrprintf(_("could not lseek in tmpfile: %s : %s\n"), |
1371 | tname, strerror(errno)); | |
1372 | goto out; | |
1373 | } | |
dc8878f4 | 1374 | if (lseek(fd, outmap[extent].bmv_length, SEEK_CUR) < 0) { |
3d303baa ES |
1375 | fsrprintf(_("could not lseek in file: %s : %s\n"), |
1376 | fname, strerror(errno)); | |
1377 | goto out; | |
1378 | } | |
c988ea91 CH |
1379 | continue; |
1380 | } else if (outmap[extent].bmv_length == 0) { | |
1381 | /* to catch holes at the beginning of the file */ | |
1382 | continue; | |
1383 | } | |
1384 | for (cnt = outmap[extent].bmv_length; cnt > 0; | |
1385 | cnt -= ct, pos += ct) { | |
1386 | if (nfrags && --nfrags) { | |
1387 | ct = min(cnt, dio_min); | |
1388 | } else if (cnt % dio_min == 0) { | |
1389 | ct = min(cnt, blksz_dio); | |
1390 | } else { | |
1391 | ct = min(cnt + dio_min - (cnt % dio_min), | |
1392 | blksz_dio); | |
1393 | } | |
1394 | ct = read(fd, fbuf, ct); | |
1395 | if (ct == 0) { | |
1396 | /* EOF, stop trying to read */ | |
1397 | extent = nextents; | |
1398 | break; | |
1399 | } | |
1400 | /* Ensure we do direct I/O to correct block | |
1401 | * boundaries. | |
1402 | */ | |
1403 | if (ct % dio_min != 0) { | |
1404 | wc = ct + dio_min - (ct % dio_min); | |
1405 | } else { | |
1406 | wc = ct; | |
1407 | } | |
1408 | wc_b4 = wc; | |
1409 | if (ct < 0 || ((wc = write(tfd, fbuf, wc)) != wc_b4)) { | |
1410 | if (ct < 0) | |
1411 | fsrprintf(_("bad read of %d bytes " | |
1412 | "from %s: %s\n"), wc_b4, | |
1413 | fname, strerror(errno)); | |
1414 | else if (wc < 0) | |
1415 | fsrprintf(_("bad write of %d bytes " | |
1416 | "to %s: %s\n"), wc_b4, | |
1417 | tname, strerror(errno)); | |
1418 | else { | |
1419 | /* | |
1420 | * Might be out of space | |
1421 | * | |
1422 | * Try to finish write | |
1423 | */ | |
1424 | int resid = ct-wc; | |
1425 | ||
1426 | if ((wc = write(tfd, ((char *)fbuf)+wc, | |
1427 | resid)) == resid) { | |
1428 | /* worked on second attempt? */ | |
1429 | continue; | |
1430 | } | |
1431 | else if (wc < 0) { | |
1432 | fsrprintf(_("bad write2 of %d " | |
1433 | "bytes to %s: %s\n"), | |
1434 | resid, tname, | |
1435 | strerror(errno)); | |
1436 | } else { | |
1437 | fsrprintf(_("bad copy to %s\n"), | |
1438 | tname); | |
1439 | } | |
1440 | } | |
671632c6 | 1441 | goto out; |
c988ea91 CH |
1442 | } |
1443 | if (nfrags) { | |
1444 | /* Do a matching write to the tmp file */ | |
431ec4e6 | 1445 | wc_b4 = wc; |
c988ea91 CH |
1446 | if (((wc = write(ffd, fbuf, wc)) != wc_b4)) { |
1447 | fsrprintf(_("bad write of %d bytes " | |
1448 | "to %s: %s\n"), | |
1449 | wc_b4, ffname, strerror(errno)); | |
1450 | } | |
1451 | } | |
1452 | } | |
1453 | } | |
dde67673 | 1454 | if (ftruncate(tfd, statp->bs_size) < 0) { |
3d303baa ES |
1455 | fsrprintf(_("could not truncate tmpfile: %s : %s\n"), |
1456 | fname, strerror(errno)); | |
1457 | goto out; | |
1458 | } | |
1459 | if (fsync(tfd) < 0) { | |
1460 | fsrprintf(_("could not fsync tmpfile: %s : %s\n"), | |
1461 | fname, strerror(errno)); | |
1462 | goto out; | |
1463 | } | |
c988ea91 | 1464 | |
c988ea91 CH |
1465 | sx.sx_stat = *statp; /* struct copy */ |
1466 | sx.sx_version = XFS_SX_VERSION; | |
1467 | sx.sx_fdtarget = fd; | |
1468 | sx.sx_fdtmp = tfd; | |
1469 | sx.sx_offset = 0; | |
1470 | sx.sx_length = statp->bs_size; | |
1471 | ||
1472 | /* switch to the owner's id, to keep quota in line */ | |
1473 | if (fchown(tfd, statp->bs_uid, statp->bs_gid) < 0) { | |
1474 | if (vflag) | |
1475 | fsrprintf(_("failed to fchown tmpfile %s: %s\n"), | |
1476 | tname, strerror(errno)); | |
671632c6 | 1477 | goto out; |
c988ea91 CH |
1478 | } |
1479 | ||
1480 | /* Swap the extents */ | |
1481 | srval = xfs_swapext(fd, &sx); | |
1482 | if (srval < 0) { | |
1483 | if (errno == ENOTSUP) { | |
1484 | if (vflag || dflag) | |
1485 | fsrprintf(_("%s: file type not supported\n"), fname); | |
1486 | } else if (errno == EFAULT) { | |
1487 | /* The file has changed since we started the copy */ | |
1488 | if (vflag || dflag) | |
1489 | fsrprintf(_("%s: file modified defrag aborted\n"), | |
1490 | fname); | |
1491 | } else if (errno == EBUSY) { | |
1492 | /* Timestamp has changed or mmap'ed file */ | |
1493 | if (vflag || dflag) | |
1494 | fsrprintf(_("%s: file busy\n"), fname); | |
1495 | } else { | |
1496 | fsrprintf(_("XFS_IOC_SWAPEXT failed: %s: %s\n"), | |
1497 | fname, strerror(errno)); | |
1498 | } | |
671632c6 | 1499 | goto out; |
c988ea91 CH |
1500 | } |
1501 | ||
1502 | /* Report progress */ | |
1503 | if (vflag) | |
1504 | fsrprintf(_("extents before:%d after:%d %s %s\n"), | |
1505 | cur_nextents, new_nextents, | |
1506 | (new_nextents <= nextents ? "DONE" : " " ), | |
1507 | fname); | |
671632c6 ES |
1508 | retval = 0; |
1509 | ||
1510 | out: | |
1511 | free(fbuf); | |
1512 | if (tfd != -1) | |
1513 | close(tfd); | |
1514 | if (ffd != -1) | |
1515 | close(ffd); | |
1516 | return retval; | |
c988ea91 CH |
1517 | } |
1518 | ||
1519 | char * | |
1520 | gettmpname(char *fname) | |
1521 | { | |
1522 | static char buf[PATH_MAX+1]; | |
1523 | char sbuf[SMBUFSZ]; | |
1524 | char *ptr; | |
1525 | ||
1526 | sprintf(sbuf, "/.fsr%d", getpid()); | |
1527 | ||
6063feca ES |
1528 | strncpy(buf, fname, PATH_MAX); |
1529 | buf[PATH_MAX] = '\0'; | |
c988ea91 CH |
1530 | ptr = strrchr(buf, '/'); |
1531 | if (ptr) { | |
1532 | *ptr = '\0'; | |
1533 | } else { | |
1534 | strcpy(buf, "."); | |
1535 | } | |
1536 | ||
1537 | if ((strlen(buf) + strlen (sbuf)) > PATH_MAX) { | |
1538 | fsrprintf(_("tmp file name too long: %s\n"), fname); | |
1539 | return(NULL); | |
1540 | } | |
1541 | ||
1542 | strcat(buf, sbuf); | |
1543 | ||
1544 | return(buf); | |
1545 | } | |
1546 | ||
1547 | char * | |
1548 | getparent(char *fname) | |
1549 | { | |
1550 | static char buf[PATH_MAX+1]; | |
1551 | char *ptr; | |
1552 | ||
6063feca ES |
1553 | strncpy(buf, fname, PATH_MAX); |
1554 | buf[PATH_MAX] = '\0'; | |
c988ea91 CH |
1555 | ptr = strrchr(buf, '/'); |
1556 | if (ptr) { | |
1557 | if (ptr == &buf[0]) | |
1558 | ++ptr; | |
1559 | *ptr = '\0'; | |
1560 | } else { | |
1561 | strcpy(buf, "."); | |
1562 | } | |
1563 | ||
1564 | return(buf); | |
1565 | } | |
1566 | ||
1567 | /* | |
1568 | * Read in block map of the input file, coalesce contiguous | |
1569 | * extents into a single range, keep all holes. Convert from 512 byte | |
1570 | * blocks to bytes. | |
1571 | * | |
1572 | * This code was borrowed from mv.c with some minor mods. | |
1573 | */ | |
1574 | #define MAPSIZE 128 | |
1575 | #define OUTMAP_SIZE_INCREMENT MAPSIZE | |
1576 | ||
1577 | int read_fd_bmap(int fd, xfs_bstat_t *sin, int *cur_nextents) | |
1578 | { | |
1579 | int i, cnt; | |
1580 | struct getbmap map[MAPSIZE]; | |
1581 | ||
1582 | #define BUMP_CNT \ | |
1583 | if (++cnt >= outmap_size) { \ | |
1584 | outmap_size += OUTMAP_SIZE_INCREMENT; \ | |
1585 | outmap = (struct getbmap *)realloc(outmap, \ | |
1586 | outmap_size*sizeof(*outmap)); \ | |
1587 | if (outmap == NULL) { \ | |
1588 | fsrprintf(_("realloc failed: %s\n"), \ | |
1589 | strerror(errno)); \ | |
1590 | exit(1); \ | |
1591 | } \ | |
1592 | } | |
1593 | ||
1594 | /* Initialize the outmap array. It always grows - never shrinks. | |
1595 | * Left-over memory allocation is saved for the next files. | |
1596 | */ | |
1597 | if (outmap_size == 0) { | |
1598 | outmap_size = OUTMAP_SIZE_INCREMENT; /* Initial size */ | |
1599 | outmap = (struct getbmap *)malloc(outmap_size*sizeof(*outmap)); | |
1600 | if (!outmap) { | |
1601 | fsrprintf(_("malloc failed: %s\n"), | |
1602 | strerror(errno)); | |
1603 | exit(1); | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | outmap[0].bmv_block = 0; | |
1608 | outmap[0].bmv_offset = 0; | |
1609 | outmap[0].bmv_length = sin->bs_size; | |
1610 | ||
1611 | /* | |
1612 | * If a non regular file is involved then forget holes | |
1613 | */ | |
1614 | ||
1615 | if (!S_ISREG(sin->bs_mode)) | |
1616 | return(1); | |
1617 | ||
1618 | outmap[0].bmv_length = 0; | |
1619 | ||
1620 | map[0].bmv_offset = 0; | |
1621 | map[0].bmv_block = 0; | |
1622 | map[0].bmv_entries = 0; | |
1623 | map[0].bmv_count = MAPSIZE; | |
1624 | map[0].bmv_length = -1; | |
1625 | ||
1626 | cnt = 0; | |
1627 | *cur_nextents = 0; | |
1628 | ||
1629 | do { | |
1630 | if (ioctl(fd, XFS_IOC_GETBMAP, map) < 0) { | |
1631 | fsrprintf(_("failed reading extents: inode %llu"), | |
1632 | (unsigned long long)sin->bs_ino); | |
1633 | exit(1); | |
1634 | } | |
1635 | ||
1636 | /* Concatenate extents together and replicate holes into | |
1637 | * the output map. | |
1638 | */ | |
1639 | *cur_nextents += map[0].bmv_entries; | |
1640 | for (i = 0; i < map[0].bmv_entries; i++) { | |
1641 | if (map[i + 1].bmv_block == -1) { | |
1642 | BUMP_CNT; | |
1643 | outmap[cnt] = map[i+1]; | |
1644 | } else if (outmap[cnt].bmv_block == -1) { | |
1645 | BUMP_CNT; | |
1646 | outmap[cnt] = map[i+1]; | |
1647 | } else { | |
1648 | outmap[cnt].bmv_length += map[i + 1].bmv_length; | |
1649 | } | |
1650 | } | |
1651 | } while (map[0].bmv_entries == (MAPSIZE-1)); | |
1652 | for (i = 0; i <= cnt; i++) { | |
1653 | outmap[i].bmv_offset = BBTOB(outmap[i].bmv_offset); | |
1654 | outmap[i].bmv_length = BBTOB(outmap[i].bmv_length); | |
1655 | } | |
1656 | ||
1657 | outmap[cnt].bmv_length = sin->bs_size - outmap[cnt].bmv_offset; | |
1658 | ||
1659 | return(cnt+1); | |
1660 | } | |
1661 | ||
1662 | /* | |
1663 | * Read the block map and return the number of extents. | |
1664 | */ | |
1665 | int | |
1666 | getnextents(int fd) | |
1667 | { | |
1668 | int nextents; | |
1669 | struct getbmap map[MAPSIZE]; | |
1670 | ||
1671 | map[0].bmv_offset = 0; | |
1672 | map[0].bmv_block = 0; | |
1673 | map[0].bmv_entries = 0; | |
1674 | map[0].bmv_count = MAPSIZE; | |
1675 | map[0].bmv_length = -1; | |
1676 | ||
1677 | nextents = 0; | |
1678 | ||
1679 | do { | |
1680 | if (ioctl(fd,XFS_IOC_GETBMAP, map) < 0) { | |
1681 | fsrprintf(_("failed reading extents")); | |
1682 | exit(1); | |
1683 | } | |
1684 | ||
1685 | nextents += map[0].bmv_entries; | |
1686 | } while (map[0].bmv_entries == (MAPSIZE-1)); | |
1687 | ||
1688 | return(nextents); | |
1689 | } | |
1690 | ||
1691 | /* | |
1692 | * Get the fs geometry | |
1693 | */ | |
1694 | int | |
1695 | xfs_getgeom(int fd, xfs_fsop_geom_v1_t * fsgeom) | |
1696 | { | |
1697 | if (xfs_fsgeometry(fd, fsgeom) < 0) { | |
1698 | return -1; | |
1699 | } | |
1700 | return 0; | |
1701 | } | |
1702 | ||
1703 | /* | |
1704 | * Get xfs realtime space information | |
1705 | */ | |
1706 | int | |
1707 | xfs_getrt(int fd, struct statvfs64 *sfbp) | |
1708 | { | |
1709 | unsigned long bsize; | |
1710 | unsigned long factor; | |
1711 | xfs_fsop_counts_t cnt; | |
1712 | ||
1713 | if (!fsgeom.rtblocks) | |
1714 | return -1; | |
1715 | ||
1716 | if (xfs_fscounts(fd, &cnt) < 0) { | |
1717 | close(fd); | |
1718 | return -1; | |
1719 | } | |
b35b4eb8 | 1720 | #ifndef statvfs64 |
c988ea91 | 1721 | bsize = (sfbp->f_frsize ? sfbp->f_frsize : sfbp->f_bsize); |
b35b4eb8 JT |
1722 | #else |
1723 | bsize = sfbp->f_bsize; | |
1724 | #endif | |
c988ea91 CH |
1725 | factor = fsgeom.blocksize / bsize; /* currently this is == 1 */ |
1726 | sfbp->f_bfree = (cnt.freertx * fsgeom.rtextsize) * factor; | |
1727 | return 0; | |
1728 | } | |
1729 | ||
1730 | int | |
1731 | fsrprintf(const char *fmt, ...) | |
1732 | { | |
1733 | va_list ap; | |
1734 | ||
1735 | va_start(ap, fmt); | |
1736 | if (gflag) { | |
1737 | static int didopenlog; | |
1738 | if (!didopenlog) { | |
1739 | openlog("fsr", LOG_PID, LOG_USER); | |
1740 | didopenlog = 1; | |
1741 | } | |
1742 | vsyslog(LOG_INFO, fmt, ap); | |
1743 | } else | |
1744 | vprintf(fmt, ap); | |
1745 | va_end(ap); | |
1746 | return 0; | |
1747 | } | |
1748 | ||
c988ea91 CH |
1749 | /* |
1750 | * Initialize a directory for tmp file use. This is used | |
1751 | * by the full filesystem defragmentation when we're walking | |
1752 | * the inodes and do not know the path for the individual | |
1753 | * files. Multiple directories are used to spread out the | |
1754 | * tmp data around to different ag's (since file data is | |
1755 | * usually allocated to the same ag as the directory and | |
1756 | * directories allocated round robin from the same | |
1757 | * parent directory). | |
1758 | */ | |
1759 | static void | |
1760 | tmp_init(char *mnt) | |
1761 | { | |
1762 | int i; | |
1763 | static char buf[SMBUFSZ]; | |
1764 | mode_t mask; | |
1765 | ||
1766 | tmp_agi = 0; | |
1767 | sprintf(buf, "%s/.fsr", mnt); | |
1768 | ||
1769 | mask = umask(0); | |
1770 | if (mkdir(buf, 0700) < 0) { | |
1771 | if (errno == EEXIST) { | |
1772 | if (dflag) | |
1773 | fsrprintf(_("tmpdir already exists: %s\n"), | |
1774 | buf); | |
1775 | } else { | |
1776 | fsrprintf(_("could not create tmpdir: %s: %s\n"), | |
1777 | buf, strerror(errno)); | |
1778 | exit(-1); | |
1779 | } | |
1780 | } | |
1781 | for (i=0; i < fsgeom.agcount; i++) { | |
1782 | sprintf(buf, "%s/.fsr/ag%d", mnt, i); | |
7d59f3fd | 1783 | if (mkdir(buf, 0700) < 0) { |
c988ea91 CH |
1784 | if (errno == EEXIST) { |
1785 | if (dflag) | |
1786 | fsrprintf( | |
1787 | _("tmpdir already exists: %s\n"), buf); | |
1788 | } else { | |
1789 | fsrprintf(_("cannot create tmpdir: %s: %s\n"), | |
1790 | buf, strerror(errno)); | |
1791 | exit(-1); | |
1792 | } | |
1793 | } | |
1794 | } | |
1795 | (void)umask(mask); | |
1796 | return; | |
1797 | } | |
1798 | ||
1799 | static char * | |
1800 | tmp_next(char *mnt) | |
1801 | { | |
1802 | static char buf[SMBUFSZ]; | |
1803 | ||
1804 | sprintf(buf, "%s/.fsr/ag%d/tmp%d", | |
1805 | ( (strcmp(mnt, "/") == 0) ? "" : mnt), | |
1806 | tmp_agi, | |
1807 | getpid()); | |
1808 | ||
1809 | if (++tmp_agi == fsgeom.agcount) | |
1810 | tmp_agi = 0; | |
1811 | ||
1812 | return(buf); | |
1813 | } | |
1814 | ||
1815 | static void | |
1816 | tmp_close(char *mnt) | |
1817 | { | |
1818 | static char buf[SMBUFSZ]; | |
1819 | int i; | |
1820 | ||
1821 | /* No data is ever actually written so we can just do rmdir's */ | |
1822 | for (i=0; i < fsgeom.agcount; i++) { | |
1823 | sprintf(buf, "%s/.fsr/ag%d", mnt, i); | |
1824 | if (rmdir(buf) < 0) { | |
1825 | if (errno != ENOENT) { | |
1826 | fsrprintf( | |
1827 | _("could not remove tmpdir: %s: %s\n"), | |
1828 | buf, strerror(errno)); | |
1829 | } | |
1830 | } | |
1831 | } | |
1832 | sprintf(buf, "%s/.fsr", mnt); | |
1833 | if (rmdir(buf) < 0) { | |
1834 | if (errno != ENOENT) { | |
1835 | fsrprintf(_("could not remove tmpdir: %s: %s\n"), | |
1836 | buf, strerror(errno)); | |
1837 | } | |
1838 | } | |
1839 | } |