2 * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
28 * For further information regarding this notice, see:
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
33 #include <xfs/libxfs.h>
34 #include <attr/xattr.h>
35 #include <attr/attributes.h>
36 #include <sys/statvfs.h>
41 #define XFS_ERRTAG_MAX 17
75 typedef void (*opfnc_t)(int, long);
77 typedef struct opdesc {
90 typedef struct flist {
97 typedef struct pathname {
103 #define FT_DIRm (1 << FT_DIR)
105 #define FT_REGm (1 << FT_REG)
107 #define FT_SYMm (1 << FT_SYM)
109 #define FT_DEVm (1 << FT_DEV)
111 #define FT_RTFm (1 << FT_RTF)
113 #define FT_ANYm ((1 << FT_nft) - 1)
114 #define FT_REGFILE (FT_REGm | FT_RTFm)
115 #define FT_NOTDIR (FT_ANYm & ~FT_DIRm)
117 #define FLIST_SLOT_INCR 16
120 #define MAXFSIZE ((1ULL << 63) - 1ULL)
121 #define MAXFSIZE32 ((1ULL << 40) - 1ULL)
123 void allocsp_f(int, long);
124 void attr_remove_f(int, long);
125 void attr_set_f(int, long);
126 void bulkstat_f(int, long);
127 void bulkstat1_f(int, long);
128 void chown_f(int, long);
129 void creat_f(int, long);
130 void dread_f(int, long);
131 void dwrite_f(int, long);
132 void fdatasync_f(int, long);
133 void freesp_f(int, long);
134 void fsync_f(int, long);
135 void getdents_f(int, long);
136 void link_f(int, long);
137 void mkdir_f(int, long);
138 void mknod_f(int, long);
139 void read_f(int, long);
140 void readlink_f(int, long);
141 void rename_f(int, long);
142 void resvsp_f(int, long);
143 void rmdir_f(int, long);
144 void stat_f(int, long);
145 void symlink_f(int, long);
146 void sync_f(int, long);
147 void truncate_f(int, long);
148 void unlink_f(int, long);
149 void unresvsp_f(int, long);
150 void write_f(int, long);
153 { OP_ALLOCSP, "allocsp", allocsp_f, 1, 1 },
154 { OP_ATTR_REMOVE, "attr_remove", attr_remove_f, /* 1 */ 0, 1 },
155 { OP_ATTR_SET, "attr_set", attr_set_f, /* 2 */ 0, 1 },
156 { OP_BULKSTAT, "bulkstat", bulkstat_f, 1, 0 },
157 { OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0 },
158 { OP_CHOWN, "chown", chown_f, 3, 1 },
159 { OP_CREAT, "creat", creat_f, 4, 1 },
160 { OP_DREAD, "dread", dread_f, 4, 0 },
161 { OP_DWRITE, "dwrite", dwrite_f, 4, 1 },
162 { OP_FDATASYNC, "fdatasync", fdatasync_f, 1, 1 },
163 { OP_FREESP, "freesp", freesp_f, 1, 1 },
164 { OP_FSYNC, "fsync", fsync_f, 1, 1 },
165 { OP_GETDENTS, "getdents", getdents_f, 1, 0 },
166 { OP_LINK, "link", link_f, 1, 1 },
167 { OP_MKDIR, "mkdir", mkdir_f, 2, 1 },
168 { OP_MKNOD, "mknod", mknod_f, 2, 1 },
169 { OP_READ, "read", read_f, 1, 0 },
170 { OP_READLINK, "readlink", readlink_f, 1, 0 },
171 { OP_RENAME, "rename", rename_f, 2, 1 },
172 { OP_RESVSP, "resvsp", resvsp_f, 1, 1 },
173 { OP_RMDIR, "rmdir", rmdir_f, 1, 1 },
174 { OP_STAT, "stat", stat_f, 1, 0 },
175 { OP_SYMLINK, "symlink", symlink_f, 2, 1 },
176 { OP_SYNC, "sync", sync_f, 1, 0 },
177 { OP_TRUNCATE, "truncate", truncate_f, 2, 1 },
178 { OP_UNLINK, "unlink", unlink_f, 1, 1 },
179 { OP_UNRESVSP, "unresvsp", unresvsp_f, 1, 1 },
180 { OP_WRITE, "write", write_f, 4, 1 },
183 flist_t flist[FT_nft] = {
196 xfs_fsop_geom_t geom;
209 unsigned long seed = 0;
213 void add_to_flist(int, int, int);
214 void append_pathname(pathname_t *, char *);
215 int attr_list_path(pathname_t *, char *, const int, int);
216 int attr_remove_path(pathname_t *, const char *, int);
217 int attr_set_path(pathname_t *, const char *, const char *, const int, int);
218 void check_cwd(void);
219 int creat_path(pathname_t *, mode_t);
220 void dcache_enter(int, int);
221 void dcache_init(void);
222 fent_t *dcache_lookup(int);
223 void dcache_purge(int);
224 void del_from_flist(int, int);
225 int dirid_to_name(char *, int);
227 void fent_to_name(pathname_t *, flist_t *, fent_t *);
228 void fix_parent(int, int);
229 void free_pathname(pathname_t *);
230 int generate_fname(fent_t *, int, pathname_t *, int *, int *);
231 int get_fname(int, long, pathname_t *, flist_t **, fent_t **, int *);
232 void init_pathname(pathname_t *);
233 int lchown_path(pathname_t *, uid_t, gid_t);
234 int link_path(pathname_t *, pathname_t *);
235 int lstat64_path(pathname_t *, struct stat64 *);
236 void make_freq_table(void);
237 int mkdir_path(pathname_t *, mode_t);
238 int mknod_path(pathname_t *, mode_t, dev_t);
239 void namerandpad(int, char *, int);
240 int open_path(pathname_t *, int);
241 DIR *opendir_path(pathname_t *);
242 void process_freq(char *);
243 int readlink_path(pathname_t *, char *, size_t);
244 int rename_path(pathname_t *, pathname_t *);
245 int rmdir_path(pathname_t *);
246 void separate_pathname(pathname_t *, char *, pathname_t *);
247 void show_ops(int, char *);
248 int stat64_path(pathname_t *, struct stat64 *);
249 int symlink_path(const char *, pathname_t *);
250 int truncate64_path(pathname_t *, off64_t);
251 int unlink_path(pathname_t *);
253 void write_freq(void);
254 void zero_freq(void);
256 int main(int argc, char **argv)
260 char *dirname = NULL;
269 xfs_error_injection_t err_inj;
271 errrange = errtag = 0;
273 nops = sizeof(ops) / sizeof(ops[0]);
274 ops_end = &ops[nops];
276 while ((c = getopt(argc, argv, "d:e:f:i:n:p:rs:vwzHS")) != -1) {
282 sscanf(optarg, "%d", &errtag);
286 } else if (errtag == 0)
288 if (errtag >= XFS_ERRTAG_MAX) {
290 "error tag %d too large (max %d)\n",
291 errtag, XFS_ERRTAG_MAX - 1);
296 process_freq(optarg);
299 ilist = realloc(ilist, ++ilistlen * sizeof(*ilist));
300 ilist[ilistlen - 1] = strtol(optarg, &p, 16);
303 operations = atoi(optarg);
306 nproc = atoi(optarg);
312 seed = strtoul(optarg, NULL, 0);
329 fprintf(stderr, "%s - invalid parameters\n",
339 /* no directory specified */
340 if (!nousage) usage();
344 (void)mkdir(dirname, 0777);
345 if (chdir(dirname) < 0) {
349 sprintf(buf, "fss%x", getpid());
350 fd = creat(buf, 0666);
351 if (lseek64(fd, (off64_t)(MAXFSIZE32 + 1ULL), SEEK_SET) < 0)
352 maxfsize = (off64_t)MAXFSIZE32;
354 maxfsize = (off64_t)MAXFSIZE;
359 gettimeofday(&t, (void *)NULL);
360 seed = (int)t.tv_sec ^ (int)t.tv_usec;
361 printf("seed = %ld\n", seed);
363 i = xfsctl(buf, fd, XFS_IOC_FSGEOMETRY, &geom);
364 if (i >= 0 && geom.rtblocks)
365 rtpct = MIN(MAX(geom.rtblocks * 100 /
366 (geom.rtblocks + geom.datablocks), 1), 99);
375 for (i = 0; i < j; i++)
378 errtag = (random() % (XFS_ERRTAG_MAX-1)) + 1;
384 for (i = 0; i < j; i++)
387 errtag += (random() % (XFS_ERRTAG_MAX - errtag));
389 printf("Injecting failure on tag #%d\n", errtag);
390 err_inj.errtag = errtag;
392 srval = xfsctl(buf, fd, XFS_IOC_ERROR_INJECTION, &err_inj);
394 perror("fsstress - XFS_SYSSGI error injection call");
401 for (i = 0; i < nproc; i++) {
408 while (wait(&stat) > 0)
413 srval = xfsctl(buf, fd, XFS_IOC_ERROR_CLEARALL, &err_inj);
415 fprintf(stderr, "Bad ej clear on %s fd=%d (%d).\n",
417 perror("xfsctl(XFS_IOC_ERROR_CLEARALL)");
429 add_to_flist(int ft, int id, int parent)
435 if (ftp->nfiles == ftp->nslots) {
436 ftp->nslots += FLIST_SLOT_INCR;
437 ftp->fents = realloc(ftp->fents, ftp->nslots * sizeof(fent_t));
439 fep = &ftp->fents[ftp->nfiles++];
441 fep->parent = parent;
445 append_pathname(pathname_t *name, char *str)
451 if (len && *str == '/' && name->len == 0) {
452 fprintf(stderr, "fsstress: append_pathname failure\n");
458 name->path = realloc(name->path, name->len + 1 + len);
459 strcpy(&name->path[name->len], str);
464 attr_list_path(pathname_t *name, char *buffer, const int buffersize, int flags)
466 char buf[MAXNAMELEN];
470 if (flags != ATTR_DONTFOLLOW) {
474 rval = llistxattr(name->path, buffer, buffersize);
475 if (rval >= 0 || errno != ENAMETOOLONG)
477 separate_pathname(name, buf, &newname);
478 if (chdir(buf) == 0) {
479 rval = attr_list_path(&newname, buffer, buffersize, flags);
482 free_pathname(&newname);
487 attr_remove_path(pathname_t *name, const char *attrname, int flags)
489 char buf[MAXNAMELEN];
493 rval = attr_remove(name->path, attrname, flags);
494 if (rval >= 0 || errno != ENAMETOOLONG)
496 separate_pathname(name, buf, &newname);
497 if (chdir(buf) == 0) {
498 rval = attr_remove_path(&newname, attrname, flags);
501 free_pathname(&newname);
506 attr_set_path(pathname_t *name, const char *attrname, const char *attrvalue,
507 const int valuelength, int flags)
509 char buf[MAXNAMELEN];
513 rval = attr_set(name->path, attrname, attrvalue, valuelength, flags);
514 if (rval >= 0 || errno != ENAMETOOLONG)
516 separate_pathname(name, buf, &newname);
517 if (chdir(buf) == 0) {
518 rval = attr_set_path(&newname, attrname, attrvalue, valuelength,
522 free_pathname(&newname);
530 struct stat64 statbuf;
532 if (stat64(".", &statbuf) == 0 && statbuf.st_ino == top_ino)
535 fprintf(stderr, "fsstress: check_cwd failure\n");
542 creat_path(pathname_t *name, mode_t mode)
544 char buf[MAXNAMELEN];
548 rval = creat(name->path, mode);
549 if (rval >= 0 || errno != ENAMETOOLONG)
551 separate_pathname(name, buf, &newname);
552 if (chdir(buf) == 0) {
553 rval = creat_path(&newname, mode);
556 free_pathname(&newname);
561 dcache_enter(int dirid, int slot)
563 dcache[dirid % NDCACHE] = slot;
571 for (i = 0; i < NDCACHE; i++)
576 dcache_lookup(int dirid)
581 i = dcache[dirid % NDCACHE];
582 if (i >= 0 && (fep = &flist[FT_DIR].fents[i])->id == dirid)
588 dcache_purge(int dirid)
592 dcp = &dcache[dirid % NDCACHE];
593 if (*dcp >= 0 && flist[FT_DIR].fents[*dcp].id == dirid)
598 del_from_flist(int ft, int slot)
604 dcache_purge(ftp->fents[slot].id);
605 if (slot != ftp->nfiles - 1) {
607 dcache_purge(ftp->fents[ftp->nfiles - 1].id);
608 ftp->fents[slot] = ftp->fents[--ftp->nfiles];
614 dirid_to_fent(int dirid)
620 if ((fep = dcache_lookup(dirid)))
622 flp = &flist[FT_DIR];
623 for (fep = flp->fents, efep = &fep[flp->nfiles]; fep < efep; fep++) {
624 if (fep->id == dirid) {
625 dcache_enter(dirid, fep - flp->fents);
635 struct stat64 statbuf;
641 sprintf(buf, "p%x", procid);
642 (void)mkdir(buf, 0777);
643 if (chdir(buf) < 0 || stat64(".", &statbuf) < 0) {
647 top_ino = statbuf.st_ino;
648 homedir = getcwd(NULL, -1);
653 for (opno = 0; opno < operations; opno++) {
654 p = &ops[freq_table[random() % freq_table_size]];
655 p->func(opno, random());
657 * test for forced shutdown by stat'ing the test
658 * directory. If this stat returns EIO, assume
659 * the forced shutdown happened.
661 if (errtag != 0 && opno % 100 == 0) {
662 rval = stat64(".", &statbuf);
664 fprintf(stderr, "Detected EIO\n");
672 fent_to_name(pathname_t *name, flist_t *flp, fent_t *fep)
674 char buf[MAXNAMELEN];
680 if (fep->parent != -1) {
681 pfep = dirid_to_fent(fep->parent);
682 fent_to_name(name, &flist[FT_DIR], pfep);
683 append_pathname(name, "/");
685 i = sprintf(buf, "%c%x", flp->tag, fep->id);
686 namerandpad(fep->id, buf, i);
687 append_pathname(name, buf);
691 fix_parent(int oldid, int newid)
698 for (i = 0, flp = flist; i < FT_nft; i++, flp++) {
699 for (j = 0, fep = flp->fents; j < flp->nfiles; j++, fep++) {
700 if (fep->parent == oldid)
707 free_pathname(pathname_t *name)
717 generate_fname(fent_t *fep, int ft, pathname_t *name, int *idp, int *v)
719 char buf[MAXNAMELEN];
726 len = sprintf(buf, "%c%x", flp->tag, id = nameseq++);
727 namerandpad(id, buf, len);
729 fent_to_name(name, &flist[FT_DIR], fep);
730 append_pathname(name, "/");
732 append_pathname(name, buf);
735 for (j = 0; !*v && j < ilistlen; j++) {
736 if (ilist[j] == id) {
745 get_fname(int which, long r, pathname_t *name, flist_t **flpp, fent_t **fepp,
755 for (i = 0, c = 0, flp = flist; i < FT_nft; i++, flp++) {
756 if (which & (1 << i))
768 for (i = 0, c = 0, flp = flist; i < FT_nft; i++, flp++) {
769 if (which & (1 << i)) {
770 if (x < c + flp->nfiles) {
771 fep = &flp->fents[x - c];
773 fent_to_name(name, flp, fep);
779 for (j = 0; !*v && j < ilistlen; j++) {
780 if (ilist[j] == fep->id) {
791 fprintf(stderr, "fsstress: get_fname failure\n");
799 init_pathname(pathname_t *name)
806 lchown_path(pathname_t *name, uid_t owner, gid_t group)
808 char buf[MAXNAMELEN];
812 rval = lchown(name->path, owner, group);
813 if (rval >= 0 || errno != ENAMETOOLONG)
815 separate_pathname(name, buf, &newname);
816 if (chdir(buf) == 0) {
817 rval = lchown_path(&newname, owner, group);
820 free_pathname(&newname);
825 link_path(pathname_t *name1, pathname_t *name2)
827 char buf1[MAXNAMELEN];
828 char buf2[MAXNAMELEN];
834 rval = link(name1->path, name2->path);
835 if (rval >= 0 || errno != ENAMETOOLONG)
837 separate_pathname(name1, buf1, &newname1);
838 separate_pathname(name2, buf2, &newname2);
839 if (strcmp(buf1, buf2) == 0) {
840 if (chdir(buf1) == 0) {
841 rval = link_path(&newname1, &newname2);
845 if (strcmp(buf1, "..") == 0)
847 else if (strcmp(buf2, "..") == 0)
849 else if (strlen(buf1) == 0)
851 else if (strlen(buf2) == 0)
854 down1 = MAX(newname1.len, 3 + name2->len) <=
855 MAX(3 + name1->len, newname2.len);
857 free_pathname(&newname2);
858 append_pathname(&newname2, "../");
859 append_pathname(&newname2, name2->path);
860 if (chdir(buf1) == 0) {
861 rval = link_path(&newname1, &newname2);
865 free_pathname(&newname1);
866 append_pathname(&newname1, "../");
867 append_pathname(&newname1, name1->path);
868 if (chdir(buf2) == 0) {
869 rval = link_path(&newname1, &newname2);
874 free_pathname(&newname1);
875 free_pathname(&newname2);
880 lstat64_path(pathname_t *name, struct stat64 *sbuf)
882 char buf[MAXNAMELEN];
886 rval = lstat64(name->path, sbuf);
887 if (rval >= 0 || errno != ENAMETOOLONG)
889 separate_pathname(name, buf, &newname);
890 if (chdir(buf) == 0) {
891 rval = lstat64_path(&newname, sbuf);
894 free_pathname(&newname);
899 make_freq_table(void)
905 for (p = ops, f = 0; p < ops_end; p++)
907 freq_table = malloc(f * sizeof(*freq_table));
909 for (p = ops, i = 0; p < ops_end; p++) {
910 for (f = 0; f < p->freq; f++, i++)
911 freq_table[i] = p->op;
916 mkdir_path(pathname_t *name, mode_t mode)
918 char buf[MAXNAMELEN];
922 rval = mkdir(name->path, mode);
923 if (rval >= 0 || errno != ENAMETOOLONG)
925 separate_pathname(name, buf, &newname);
926 if (chdir(buf) == 0) {
927 rval = mkdir_path(&newname, mode);
930 free_pathname(&newname);
935 mknod_path(pathname_t *name, mode_t mode, dev_t dev)
937 char buf[MAXNAMELEN];
941 rval = mknod(name->path, mode, dev);
942 if (rval >= 0 || errno != ENAMETOOLONG)
944 separate_pathname(name, buf, &newname);
945 if (chdir(buf) == 0) {
946 rval = mknod_path(&newname, mode, dev);
949 free_pathname(&newname);
954 namerandpad(int id, char *buf, int i)
957 static int buckets[] =
958 { 2, 4, 8, 16, 32, 64, 128, MAXNAMELEN - 1 };
964 bucket = (id ^ namerand) % (sizeof(buckets) / sizeof(buckets[0]));
965 padmod = buckets[bucket] + 1 - i;
968 padlen = (id ^ namerand) % padmod;
970 memset(&buf[i], 'X', padlen);
971 buf[i + padlen] = '\0';
976 open_path(pathname_t *name, int oflag)
978 char buf[MAXNAMELEN];
982 rval = open(name->path, oflag);
983 if (rval >= 0 || errno != ENAMETOOLONG)
985 separate_pathname(name, buf, &newname);
986 if (chdir(buf) == 0) {
987 rval = open_path(&newname, oflag);
990 free_pathname(&newname);
995 opendir_path(pathname_t *name)
997 char buf[MAXNAMELEN];
1001 rval = opendir(name->path);
1002 if (rval || errno != ENAMETOOLONG)
1004 separate_pathname(name, buf, &newname);
1005 if (chdir(buf) == 0) {
1006 rval = opendir_path(&newname);
1009 free_pathname(&newname);
1014 process_freq(char *arg)
1019 s = strchr(arg, '=');
1021 fprintf(stderr, "bad argument '%s'\n", arg);
1025 for (p = ops; p < ops_end; p++) {
1026 if (strcmp(arg, p->name) == 0) {
1031 fprintf(stderr, "can't find op type %s for -f\n", arg);
1036 readlink_path(pathname_t *name, char *lbuf, size_t lbufsiz)
1038 char buf[MAXNAMELEN];
1042 rval = readlink(name->path, lbuf, lbufsiz);
1043 if (rval >= 0 || errno != ENAMETOOLONG)
1045 separate_pathname(name, buf, &newname);
1046 if (chdir(buf) == 0) {
1047 rval = readlink_path(&newname, lbuf, lbufsiz);
1050 free_pathname(&newname);
1055 rename_path(pathname_t *name1, pathname_t *name2)
1057 char buf1[MAXNAMELEN];
1058 char buf2[MAXNAMELEN];
1060 pathname_t newname1;
1061 pathname_t newname2;
1064 rval = rename(name1->path, name2->path);
1065 if (rval >= 0 || errno != ENAMETOOLONG)
1067 separate_pathname(name1, buf1, &newname1);
1068 separate_pathname(name2, buf2, &newname2);
1069 if (strcmp(buf1, buf2) == 0) {
1070 if (chdir(buf1) == 0) {
1071 rval = rename_path(&newname1, &newname2);
1075 if (strcmp(buf1, "..") == 0)
1077 else if (strcmp(buf2, "..") == 0)
1079 else if (strlen(buf1) == 0)
1081 else if (strlen(buf2) == 0)
1084 down1 = MAX(newname1.len, 3 + name2->len) <=
1085 MAX(3 + name1->len, newname2.len);
1087 free_pathname(&newname2);
1088 append_pathname(&newname2, "../");
1089 append_pathname(&newname2, name2->path);
1090 if (chdir(buf1) == 0) {
1091 rval = rename_path(&newname1, &newname2);
1095 free_pathname(&newname1);
1096 append_pathname(&newname1, "../");
1097 append_pathname(&newname1, name1->path);
1098 if (chdir(buf2) == 0) {
1099 rval = rename_path(&newname1, &newname2);
1104 free_pathname(&newname1);
1105 free_pathname(&newname2);
1110 rmdir_path(pathname_t *name)
1112 char buf[MAXNAMELEN];
1116 rval = rmdir(name->path);
1117 if (rval >= 0 || errno != ENAMETOOLONG)
1119 separate_pathname(name, buf, &newname);
1120 if (chdir(buf) == 0) {
1121 rval = rmdir_path(&newname);
1124 free_pathname(&newname);
1129 separate_pathname(pathname_t *name, char *buf, pathname_t *newname)
1133 init_pathname(newname);
1134 slash = strchr(name->path, '/');
1135 if (slash == NULL) {
1140 strcpy(buf, name->path);
1142 append_pathname(newname, slash + 1);
1148 show_ops(int flag, char *lead_str)
1153 /* print in list form */
1156 for (p = ops; p < ops_end; p++) {
1157 if (lead_str != NULL && x+strlen(p->name)>=WIDTH-5)
1158 x=printf("%s%s", (p==ops)?"":"\n", lead_str);
1159 x+=printf("%s ", p->name);
1164 for (f = 0, p = ops; p < ops_end; p++)
1170 for (p = ops; p < ops_end; p++) {
1171 if (flag != 0 || p->freq > 0) {
1172 if (lead_str != NULL)
1173 printf("%s", lead_str);
1174 printf("%20s %d/%d %s\n",
1175 p->name, p->freq, f,
1176 (p->iswrite == 0) ? " " : "write op");
1183 stat64_path(pathname_t *name, struct stat64 *sbuf)
1185 char buf[MAXNAMELEN];
1189 rval = stat64(name->path, sbuf);
1190 if (rval >= 0 || errno != ENAMETOOLONG)
1192 separate_pathname(name, buf, &newname);
1193 if (chdir(buf) == 0) {
1194 rval = stat64_path(&newname, sbuf);
1197 free_pathname(&newname);
1202 symlink_path(const char *name1, pathname_t *name)
1204 char buf[MAXNAMELEN];
1208 if (!strcmp(name1, name->path)) {
1209 printf("yikes! %s %s\n", name1, name->path);
1213 rval = symlink(name1, name->path);
1214 if (rval >= 0 || errno != ENAMETOOLONG)
1216 separate_pathname(name, buf, &newname);
1217 if (chdir(buf) == 0) {
1218 rval = symlink_path(name1, &newname);
1221 free_pathname(&newname);
1226 truncate64_path(pathname_t *name, off64_t length)
1228 char buf[MAXNAMELEN];
1232 rval = truncate64(name->path, length);
1233 if (rval >= 0 || errno != ENAMETOOLONG)
1235 separate_pathname(name, buf, &newname);
1236 if (chdir(buf) == 0) {
1237 rval = truncate64_path(&newname, length);
1240 free_pathname(&newname);
1245 unlink_path(pathname_t *name)
1247 char buf[MAXNAMELEN];
1251 rval = unlink(name->path);
1252 if (rval >= 0 || errno != ENAMETOOLONG)
1254 separate_pathname(name, buf, &newname);
1255 if (chdir(buf) == 0) {
1256 rval = unlink_path(&newname);
1259 free_pathname(&newname);
1266 printf("Usage: %s -H or\n", myprog);
1267 printf(" %s [-d dir][-e errtg][-f op_name=freq][-n nops]\n",
1269 printf(" [-p nproc][-r len][-s seed][-v][-w][-z][-S]\n");
1271 printf(" -d dir specifies the base directory for operations\n");
1272 printf(" -e errtg specifies error injection stuff\n");
1273 printf(" -f op_name=freq changes the frequency of option name to freq\n");
1274 printf(" the valid operation names are:\n");
1276 printf(" -n nops specifies the no. of operations per process (default 1)\n");
1277 printf(" -p nproc specifies the no. of processes (default 1)\n");
1278 printf(" -r specifies random name padding\n");
1279 printf(" -s seed specifies the seed for the random generator (default random)\n");
1280 printf(" -v specifies verbose mode\n");
1281 printf(" -w zeros frequencies of non-write operations\n");
1282 printf(" -z zeros frequencies of all operations\n");
1283 printf(" -S prints the table of operations (omitting zero frequency)\n");
1284 printf(" -H prints usage and exits\n");
1292 for (p = ops; p < ops_end; p++) {
1303 for (p = ops; p < ops_end; p++)
1308 allocsp_f(int opno, long r)
1320 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1322 printf("%d/%d: allocsp - no filename\n", procid, opno);
1326 fd = open_path(&f, O_RDWR);
1327 e = fd < 0 ? errno : 0;
1331 printf("%d/%d: allocsp - open %s failed %d\n",
1332 procid, opno, f.path, e);
1336 if (fstat64(fd, &stb) < 0) {
1338 printf("%d/%d: allocsp - fstat64 %s failed %d\n",
1339 procid, opno, f.path, errno);
1344 lr = ((__int64_t)random() << 32) + random();
1345 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
1347 fl.l_whence = SEEK_SET;
1350 e = xfsctl(f.path, fd, XFS_IOC_ALLOCSP64, &fl) < 0 ? errno : 0;
1352 printf("%d/%d: xfsctl(XFS_IOC_ALLOCSP64) %s %lld 0 %d\n",
1353 procid, opno, f.path, (long long)off, e);
1359 attr_remove_f(int opno, long r)
1371 if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
1372 append_pathname(&f, ".");
1374 e = attr_list_path(&f, buf, sizeof(buf), ATTR_DONTFOLLOW);
1377 for (l = buf; l - buf <= e; l += strlen(l)+1)
1378 if (strncmp(l, "user.",5) == 0)
1383 printf("%d/%d: attr_remove - no attrs for %s\n",
1384 procid, opno, f.path);
1388 which = (int)(random() % total);
1391 e = attr_list_path(&f, buf, sizeof(buf), ATTR_DONTFOLLOW);
1395 for (l = buf; l - buf <= e; l += strlen(l)+1) {
1396 if (strncmp(l, "user.",5) == 0) {
1397 if (++ent == which) {
1403 if (aname == NULL) {
1406 "%d/%d: attr_remove - name %d not found at %s\n",
1407 procid, opno, which, f.path);
1411 e = attr_remove_path(&f, aname, ATTR_DONTFOLLOW) < 0 ? errno : 0;
1414 printf("%d/%d: attr_remove %s %s %d\n",
1415 procid, opno, f.path, aname, e);
1420 attr_set_f(int opno, long r)
1427 static int lengths[] = { 10, 100, 1000, 10000 };
1432 if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
1433 append_pathname(&f, ".");
1434 sprintf(aname, "a%x", nameseq++);
1435 li = (int)(random() % (sizeof(lengths) / sizeof(lengths[0])));
1436 len = (int)(random() % lengths[li]);
1440 memset(aval, nameseq & 0xff, len);
1441 e = attr_set_path(&f, aname, aval, len, ATTR_DONTFOLLOW) < 0 ?
1446 printf("%d/%d: attr_set %s %s %d\n", procid, opno, f.path,
1452 bulkstat_f(int opno, long r)
1460 xfs_fsop_bulkreq_t bsr;
1463 nent = (r % 999) + 2;
1464 t = malloc(nent * sizeof(*t));
1465 fd = open(".", O_RDONLY);
1473 while (xfsctl(".", fd, XFS_IOC_FSBULKSTAT, &bsr) == 0 && count > 0)
1477 printf("%d/%d: bulkstat nent %d total %llu\n",
1478 procid, opno, nent, (long long)total);
1483 bulkstat1_f(int opno, long r)
1493 xfs_fsop_bulkreq_t bsr;
1496 good = random() & 1;
1498 /* use an inode we know exists */
1500 if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
1501 append_pathname(&f, ".");
1502 ino = stat64_path(&f, &s) < 0 ? (ino64_t)r : s.st_ino;
1507 * pick a random inode
1509 * note this can generate kernel warning messages
1510 * since bulkstat_one will read the disk block that
1511 * would contain a given inode even if that disk
1512 * block doesn't contain inodes.
1514 * this is detected later, but not until after the
1515 * warning is displayed.
1517 * "XFS: device 0x825- bad inode magic/vsn daddr 0x0 #0"
1523 fd = open(".", O_RDONLY);
1530 e = xfsctl(".", fd, XFS_IOC_FSBULKSTAT_SINGLE, &bsr) < 0 ? errno : 0;
1532 printf("%d/%d: bulkstat1 %s ino %lld %d\n",
1533 procid, opno, good?"real":"random", (long long)ino, e);
1538 chown_f(int opno, long r)
1547 if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
1548 append_pathname(&f, ".");
1549 u = (uid_t)random();
1550 nbits = (int)(random() % 32);
1551 u &= (1 << nbits) - 1;
1552 e = lchown_path(&f, u, -1) < 0 ? errno : 0;
1555 printf("%d/%d: chown %s %d %d\n", procid, opno, f.path, u, e);
1560 creat_f(int opno, long r)
1575 if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v1))
1580 type = rtpct ? ((random() % 100) > rtpct ? FT_REG : FT_RTF) : FT_REG;
1582 extsize = (random() % 10) + 1;
1585 e = generate_fname(fep, type, &f, &id, &v);
1589 fent_to_name(&f, &flist[FT_DIR], fep);
1590 printf("%d/%d: creat - no filename from %s\n",
1591 procid, opno, f.path);
1596 fd = creat_path(&f, 0666);
1597 e = fd < 0 ? errno : 0;
1602 xfsctl(f.path, fd, XFS_IOC_FSGETXATTR, &a) >= 0) {
1603 a.fsx_xflags |= XFS_XFLAG_REALTIME;
1605 geom.rtextsize * geom.blocksize * extsize;
1606 if (xfsctl(f.path, fd, XFS_IOC_FSSETXATTR, &a) < 0)
1609 add_to_flist(type, id, parid);
1613 printf("%d/%d: creat %s x:%d %d %d\n", procid, opno, f.path,
1614 extsize ? a.fsx_extsize : 0, e, e1);
1619 dread_f(int opno, long r)
1623 struct dioattr diob;
1634 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1636 printf("%d/%d: dread - no filename\n", procid, opno);
1640 fd = open_path(&f, O_RDONLY|O_DIRECT);
1641 e = fd < 0 ? errno : 0;
1645 printf("%d/%d: dread - open %s failed %d\n",
1646 procid, opno, f.path, e);
1650 if (fstat64(fd, &stb) < 0) {
1652 printf("%d/%d: dread - fstat64 %s failed %d\n",
1653 procid, opno, f.path, errno);
1658 if (stb.st_size == 0) {
1660 printf("%d/%d: dread - %s zero size\n", procid, opno,
1666 if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
1669 "%d/%d: dread - xfsctl(XFS_IOC_DIOINFO) %s failed %d\n",
1670 procid, opno, f.path, errno);
1675 align = (__int64_t)diob.d_miniosz;
1676 lr = ((__int64_t)random() << 32) + random();
1677 off = (off64_t)(lr % stb.st_size);
1678 off -= (off % align);
1679 lseek64(fd, off, SEEK_SET);
1680 len = (random() % (getpagesize() * 32)) + 1;
1681 len -= (len % align);
1684 else if (len > diob.d_maxiosz)
1685 len = diob.d_maxiosz;
1686 buf = memalign(diob.d_mem, len);
1687 e = read(fd, buf, len) < 0 ? errno : 0;
1690 printf("%d/%d: dread %s [%lld,%d] %d\n",
1691 procid, opno, f.path, (long long)off, (int)len, e);
1697 dwrite_f(int opno, long r)
1701 struct dioattr diob;
1712 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1714 printf("%d/%d: dwrite - no filename\n", procid, opno);
1718 fd = open_path(&f, O_WRONLY|O_DIRECT);
1719 e = fd < 0 ? errno : 0;
1723 printf("%d/%d: dwrite - open %s failed %d\n",
1724 procid, opno, f.path, e);
1728 if (fstat64(fd, &stb) < 0) {
1730 printf("%d/%d: dwrite - fstat64 %s failed %d\n",
1731 procid, opno, f.path, errno);
1736 if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
1738 printf("%d/%d: dwrite - xfsctl(XFS_IOC_DIOINFO)"
1740 procid, opno, f.path, errno);
1745 align = (__int64_t)diob.d_miniosz;
1746 lr = ((__int64_t)random() << 32) + random();
1747 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
1748 off -= (off % align);
1749 lseek64(fd, off, SEEK_SET);
1750 len = (random() % (getpagesize() * 32)) + 1;
1751 len -= (len % align);
1754 else if (len > diob.d_maxiosz)
1755 len = diob.d_maxiosz;
1756 buf = memalign(diob.d_mem, len);
1758 lseek64(fd, off, SEEK_SET);
1759 memset(buf, nameseq & 0xff, len);
1760 e = write(fd, buf, len) < 0 ? errno : 0;
1763 printf("%d/%d: dwrite %s [%lld,%d] %d\n",
1764 procid, opno, f.path, (long long)off, (int)len, e);
1770 fdatasync_f(int opno, long r)
1778 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1780 printf("%d/%d: fdatasync - no filename\n",
1785 fd = open_path(&f, O_WRONLY);
1786 e = fd < 0 ? errno : 0;
1790 printf("%d/%d: fdatasync - open %s failed %d\n",
1791 procid, opno, f.path, e);
1795 e = fdatasync(fd) < 0 ? errno : 0;
1797 printf("%d/%d: fdatasync %s %d\n", procid, opno, f.path, e);
1803 freesp_f(int opno, long r)
1815 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1817 printf("%d/%d: freesp - no filename\n", procid, opno);
1821 fd = open_path(&f, O_RDWR);
1822 e = fd < 0 ? errno : 0;
1826 printf("%d/%d: freesp - open %s failed %d\n",
1827 procid, opno, f.path, e);
1831 if (fstat64(fd, &stb) < 0) {
1833 printf("%d/%d: freesp - fstat64 %s failed %d\n",
1834 procid, opno, f.path, errno);
1839 lr = ((__int64_t)random() << 32) + random();
1840 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
1842 fl.l_whence = SEEK_SET;
1845 e = xfsctl(f.path, fd, XFS_IOC_FREESP64, &fl) < 0 ? errno : 0;
1847 printf("%d/%d: xfsctl(XFS_IOC_FREESP64) %s %lld 0 %d\n",
1848 procid, opno, f.path, (long long)off, e);
1854 fsync_f(int opno, long r)
1862 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
1864 printf("%d/%d: fsync - no filename\n", procid, opno);
1868 fd = open_path(&f, O_WRONLY);
1869 e = fd < 0 ? errno : 0;
1873 printf("%d/%d: fsync - open %s failed %d\n",
1874 procid, opno, f.path, e);
1878 e = fsync(fd) < 0 ? errno : 0;
1880 printf("%d/%d: fsync %s %d\n", procid, opno, f.path, e);
1886 getdents_f(int opno, long r)
1893 if (!get_fname(FT_DIRm, r, &f, NULL, NULL, &v))
1894 append_pathname(&f, ".");
1895 dir = opendir_path(&f);
1899 printf("%d/%d: getdents - can't open %s\n",
1900 procid, opno, f.path);
1904 while (readdir64(dir) != NULL)
1907 printf("%d/%d: getdents %s 0\n", procid, opno, f.path);
1913 link_f(int opno, long r)
1926 if (!get_fname(FT_NOTDIR, r, &f, &flp, NULL, &v1)) {
1928 printf("%d/%d: link - no file\n", procid, opno);
1932 if (!get_fname(FT_DIRm, random(), NULL, NULL, &fep, &v))
1938 e = generate_fname(fep, flp - flist, &l, &id, &v1);
1942 fent_to_name(&l, &flist[FT_DIR], fep);
1943 printf("%d/%d: link - no filename from %s\n",
1944 procid, opno, l.path);
1950 e = link_path(&f, &l) < 0 ? errno : 0;
1953 add_to_flist(flp - flist, id, parid);
1955 printf("%d/%d: link %s %s %d\n", procid, opno, f.path, l.path,
1962 mkdir_f(int opno, long r)
1972 if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v))
1977 e = generate_fname(fep, FT_DIR, &f, &id, &v1);
1981 fent_to_name(&f, &flist[FT_DIR], fep);
1982 printf("%d/%d: mkdir - no filename from %s\n",
1983 procid, opno, f.path);
1988 e = mkdir_path(&f, 0777) < 0 ? errno : 0;
1991 add_to_flist(FT_DIR, id, parid);
1993 printf("%d/%d: mkdir %s %d\n", procid, opno, f.path, e);
1998 mknod_f(int opno, long r)
2008 if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v))
2013 e = generate_fname(fep, FT_DEV, &f, &id, &v1);
2017 fent_to_name(&f, &flist[FT_DIR], fep);
2018 printf("%d/%d: mknod - no filename from %s\n",
2019 procid, opno, f.path);
2024 e = mknod_path(&f, S_IFCHR|0444, 0) < 0 ? errno : 0;
2027 add_to_flist(FT_DEV, id, parid);
2029 printf("%d/%d: mknod %s %d\n", procid, opno, f.path, e);
2034 read_f(int opno, long r)
2047 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
2049 printf("%d/%d: read - no filename\n", procid, opno);
2053 fd = open_path(&f, O_RDONLY);
2054 e = fd < 0 ? errno : 0;
2058 printf("%d/%d: read - open %s failed %d\n",
2059 procid, opno, f.path, e);
2063 if (fstat64(fd, &stb) < 0) {
2065 printf("%d/%d: read - fstat64 %s failed %d\n",
2066 procid, opno, f.path, errno);
2071 if (stb.st_size == 0) {
2073 printf("%d/%d: read - %s zero size\n", procid, opno,
2079 lr = ((__int64_t)random() << 32) + random();
2080 off = (off64_t)(lr % stb.st_size);
2081 lseek64(fd, off, SEEK_SET);
2082 len = (random() % (getpagesize() * 32)) + 1;
2084 e = read(fd, buf, len) < 0 ? errno : 0;
2087 printf("%d/%d: read %s [%lld,%d] %d\n",
2088 procid, opno, f.path, (long long)off, (int)len, e);
2094 readlink_f(int opno, long r)
2102 if (!get_fname(FT_SYMm, r, &f, NULL, NULL, &v)) {
2104 printf("%d/%d: readlink - no filename\n", procid, opno);
2108 e = readlink_path(&f, buf, PATH_MAX) < 0 ? errno : 0;
2111 printf("%d/%d: readlink %s %d\n", procid, opno, f.path, e);
2116 rename_f(int opno, long r)
2131 if (!get_fname(FT_ANYm, r, &f, &flp, &fep, &v1)) {
2133 printf("%d/%d: rename - no filename\n", procid, opno);
2137 if (!get_fname(FT_DIRm, random(), NULL, NULL, &dfep, &v))
2142 init_pathname(&newf);
2143 e = generate_fname(dfep, flp - flist, &newf, &id, &v1);
2147 fent_to_name(&f, &flist[FT_DIR], dfep);
2148 printf("%d/%d: rename - no filename from %s\n",
2149 procid, opno, f.path);
2151 free_pathname(&newf);
2155 e = rename_path(&f, &newf) < 0 ? errno : 0;
2158 if (flp - flist == FT_DIR) {
2160 fix_parent(oldid, id);
2162 del_from_flist(flp - flist, fep - flp->fents);
2163 add_to_flist(flp - flist, id, parid);
2166 printf("%d/%d: rename %s to %s %d\n", procid, opno, f.path,
2168 free_pathname(&newf);
2173 resvsp_f(int opno, long r)
2185 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
2187 printf("%d/%d: resvsp - no filename\n", procid, opno);
2191 fd = open_path(&f, O_RDWR);
2192 e = fd < 0 ? errno : 0;
2196 printf("%d/%d: resvsp - open %s failed %d\n",
2197 procid, opno, f.path, e);
2201 if (fstat64(fd, &stb) < 0) {
2203 printf("%d/%d: resvsp - fstat64 %s failed %d\n",
2204 procid, opno, f.path, errno);
2209 lr = ((__int64_t)random() << 32) + random();
2210 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
2212 fl.l_whence = SEEK_SET;
2214 fl.l_len = (off64_t)(random() % (1024 * 1024));
2215 e = xfsctl(f.path, fd, XFS_IOC_RESVSP64, &fl) < 0 ? errno : 0;
2217 printf("%d/%d: xfsctl(XFS_IOC_RESVSP64) %s %lld %lld %d\n",
2218 procid, opno, f.path,
2219 (long long)off, (long long)fl.l_len, e);
2225 rmdir_f(int opno, long r)
2233 if (!get_fname(FT_DIRm, r, &f, NULL, &fep, &v)) {
2235 printf("%d/%d: rmdir - no directory\n", procid, opno);
2239 e = rmdir_path(&f) < 0 ? errno : 0;
2242 del_from_flist(FT_DIR, fep - flist[FT_DIR].fents);
2244 printf("%d/%d: rmdir %s %d\n", procid, opno, f.path, e);
2249 stat_f(int opno, long r)
2257 if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) {
2259 printf("%d/%d: stat - no entries\n", procid, opno);
2263 e = lstat64_path(&f, &stb) < 0 ? errno : 0;
2266 printf("%d/%d: stat %s %d\n", procid, opno, f.path, e);
2271 symlink_f(int opno, long r)
2284 if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v))
2289 e = generate_fname(fep, FT_SYM, &f, &id, &v1);
2293 fent_to_name(&f, &flist[FT_DIR], fep);
2294 printf("%d/%d: symlink - no filename from %s\n",
2295 procid, opno, f.path);
2300 len = (int)(random() % PATH_MAX);
2301 val = malloc(len + 1);
2303 memset(val, 'x', len);
2305 for (i = 10; i < len - 1; i += 10)
2307 e = symlink_path(val, &f) < 0 ? errno : 0;
2310 add_to_flist(FT_SYM, id, parid);
2313 printf("%d/%d: symlink %s %d\n", procid, opno, f.path, e);
2319 sync_f(int opno, long r)
2323 printf("%d/%d: sync\n", procid, opno);
2327 truncate_f(int opno, long r)
2337 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
2339 printf("%d/%d: truncate - no filename\n", procid, opno);
2343 e = stat64_path(&f, &stb) < 0 ? errno : 0;
2347 printf("%d/%d: truncate - stat64 %s failed %d\n",
2348 procid, opno, f.path, e);
2352 lr = ((__int64_t)random() << 32) + random();
2353 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
2355 e = truncate64_path(&f, off) < 0 ? errno : 0;
2358 printf("%d/%d: truncate %s %lld %d\n", procid, opno, f.path,
2364 unlink_f(int opno, long r)
2373 if (!get_fname(FT_NOTDIR, r, &f, &flp, &fep, &v)) {
2375 printf("%d/%d: unlink - no file\n", procid, opno);
2379 e = unlink_path(&f) < 0 ? errno : 0;
2382 del_from_flist(flp - flist, fep - flp->fents);
2384 printf("%d/%d: unlink %s %d\n", procid, opno, f.path, e);
2389 unresvsp_f(int opno, long r)
2401 if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
2403 printf("%d/%d: unresvsp - no filename\n", procid, opno);
2407 fd = open_path(&f, O_RDWR);
2408 e = fd < 0 ? errno : 0;
2412 printf("%d/%d: unresvsp - open %s failed %d\n",
2413 procid, opno, f.path, e);
2417 if (fstat64(fd, &stb) < 0) {
2419 printf("%d/%d: unresvsp - fstat64 %s failed %d\n",
2420 procid, opno, f.path, errno);
2425 lr = ((__int64_t)random() << 32) + random();
2426 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
2428 fl.l_whence = SEEK_SET;
2430 fl.l_len = (off64_t)(random() % (1 << 20));
2431 e = xfsctl(f.path, fd, XFS_IOC_UNRESVSP64, &fl) < 0 ? errno : 0;
2433 printf("%d/%d: xfsctl(XFS_IOC_UNRESVSP64) %s %lld %lld %d\n",
2434 procid, opno, f.path,
2435 (long long)off, (long long)fl.l_len, e);
2441 write_f(int opno, long r)
2454 if (!get_fname(FT_REGm, r, &f, NULL, NULL, &v)) {
2456 printf("%d/%d: write - no filename\n", procid, opno);
2460 fd = open_path(&f, O_WRONLY);
2461 e = fd < 0 ? errno : 0;
2465 printf("%d/%d: write - open %s failed %d\n",
2466 procid, opno, f.path, e);
2470 if (fstat64(fd, &stb) < 0) {
2472 printf("%d/%d: write - fstat64 %s failed %d\n",
2473 procid, opno, f.path, errno);
2478 lr = ((__int64_t)random() << 32) + random();
2479 off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
2481 lseek64(fd, off, SEEK_SET);
2482 len = (random() % (getpagesize() * 32)) + 1;
2484 memset(buf, nameseq & 0xff, len);
2485 e = write(fd, buf, len) < 0 ? errno : 0;
2488 printf("%d/%d: write %s [%lld,%d] %d\n",
2489 procid, opno, f.path, (long long)off, (int)len, e);