/* * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it is * free of the rightful claim of any third person regarding infringement * or the like. Any license provided herein, whether implied or * otherwise, applies only to this software file. Patent licenses, if * any, provided herein do not apply to combinations of this program with * other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, * Mountain View, CA 94043, or: * * http://www.sgi.com * * For further information regarding this notice, see: * * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ */ /* * $DragonFly: src/test/stress/fsstress/fsstress.c,v 1.1 2004/05/07 17:51:02 dillon Exp $ */ #include "global.h" #define XFS_ERRTAG_MAX 17 typedef enum { #ifndef NO_XFS OP_ALLOCSP, OP_ATTR_REMOVE, OP_ATTR_SET, OP_BULKSTAT, OP_BULKSTAT1, #endif OP_CHOWN, OP_CREAT, OP_DREAD, OP_DWRITE, OP_FDATASYNC, #ifndef NO_XFS OP_FREESP, #endif OP_FSYNC, OP_GETDENTS, OP_LINK, OP_MKDIR, OP_MKNOD, OP_READ, OP_READLINK, OP_RENAME, #ifndef NO_XFS OP_RESVSP, #endif OP_RMDIR, OP_STAT, OP_SYMLINK, OP_SYNC, OP_TRUNCATE, OP_UNLINK, #ifndef NO_XFS OP_UNRESVSP, #endif OP_WRITE, OP_LAST } opty_t; typedef void (*opfnc_t)(int, long); typedef struct opdesc { opty_t op; char *name; opfnc_t func; int freq; int iswrite; int isxfs; } opdesc_t; typedef struct fent { int id; int parent; } fent_t; typedef struct flist { int nfiles; int nslots; int tag; fent_t *fents; } flist_t; typedef struct pathname { int len; char *path; } pathname_t; #define FT_DIR 0 #define FT_DIRm (1 << FT_DIR) #define FT_REG 1 #define FT_REGm (1 << FT_REG) #define FT_SYM 2 #define FT_SYMm (1 << FT_SYM) #define FT_DEV 3 #define FT_DEVm (1 << FT_DEV) #define FT_RTF 4 #define FT_RTFm (1 << FT_RTF) #define FT_nft 5 #define FT_ANYm ((1 << FT_nft) - 1) #define FT_REGFILE (FT_REGm | FT_RTFm) #define FT_NOTDIR (FT_ANYm & ~FT_DIRm) #define FLIST_SLOT_INCR 16 #define NDCACHE 64 #define MAXFSIZE ((1ULL << 63) - 1ULL) #define MAXFSIZE32 ((1ULL << 40) - 1ULL) void allocsp_f(int, long); void attr_remove_f(int, long); void attr_set_f(int, long); void bulkstat_f(int, long); void bulkstat1_f(int, long); void chown_f(int, long); void creat_f(int, long); void dread_f(int, long); void dwrite_f(int, long); void fdatasync_f(int, long); void freesp_f(int, long); void fsync_f(int, long); void getdents_f(int, long); void link_f(int, long); void mkdir_f(int, long); void mknod_f(int, long); void read_f(int, long); void readlink_f(int, long); void rename_f(int, long); void resvsp_f(int, long); void rmdir_f(int, long); void stat_f(int, long); void symlink_f(int, long); void sync_f(int, long); void truncate_f(int, long); void unlink_f(int, long); void unresvsp_f(int, long); void write_f(int, long); opdesc_t ops[] = { #ifndef NO_XFS { OP_ALLOCSP, "allocsp", allocsp_f, 1, 1, 1 }, { OP_ATTR_REMOVE, "attr_remove", attr_remove_f, /* 1 */ 0, 1, 1 }, { OP_ATTR_SET, "attr_set", attr_set_f, /* 2 */ 0, 1, 1 }, { OP_BULKSTAT, "bulkstat", bulkstat_f, 1, 0, 1 }, { OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0, 1 }, #endif { OP_CHOWN, "chown", chown_f, 3, 1 }, { OP_CREAT, "creat", creat_f, 4, 1 }, { OP_DREAD, "dread", dread_f, 4, 0 }, { OP_DWRITE, "dwrite", dwrite_f, 4, 1 }, { OP_FDATASYNC, "fdatasync", fdatasync_f, 1, 1 }, #ifndef NO_XFS { OP_FREESP, "freesp", freesp_f, 1, 1, 1 }, #endif { OP_FSYNC, "fsync", fsync_f, 1, 1 }, { OP_GETDENTS, "getdents", getdents_f, 1, 0 }, { OP_LINK, "link", link_f, 1, 1 }, { OP_MKDIR, "mkdir", mkdir_f, 2, 1 }, { OP_MKNOD, "mknod", mknod_f, 2, 1 }, { OP_READ, "read", read_f, 1, 0 }, { OP_READLINK, "readlink", readlink_f, 1, 0 }, { OP_RENAME, "rename", rename_f, 2, 1 }, #ifndef NO_XFS { OP_RESVSP, "resvsp", resvsp_f, 1, 1, 1 }, #endif { OP_RMDIR, "rmdir", rmdir_f, 1, 1 }, { OP_STAT, "stat", stat_f, 1, 0 }, { OP_SYMLINK, "symlink", symlink_f, 2, 1 }, { OP_SYNC, "sync", sync_f, 1, 0 }, { OP_TRUNCATE, "truncate", truncate_f, 2, 1 }, { OP_UNLINK, "unlink", unlink_f, 1, 1 }, #ifndef NO_XFS { OP_UNRESVSP, "unresvsp", unresvsp_f, 1, 1, 1 }, #endif { OP_WRITE, "write", write_f, 4, 1 }, }, *ops_end; flist_t flist[FT_nft] = { { 0, 0, 'd', NULL }, { 0, 0, 'f', NULL }, { 0, 0, 'l', NULL }, { 0, 0, 'c', NULL }, { 0, 0, 'r', NULL }, }; int dcache[NDCACHE]; int errrange; int errtag; opty_t *freq_table; int freq_table_size; #ifndef NO_XFS xfs_fsop_geom_t geom; #endif char *homedir; int *ilist; int ilistlen; off64_t maxfsize; char *myprog; int namerand; int nameseq; int nops; int nproc = 1; int operations = 1; int procid; int rtpct; unsigned long seed = 0; ino_t top_ino; int verbose = 0; #ifndef NO_XFS int no_xfs = 0; #else int no_xfs = 1; #endif void add_to_flist(int, int, int); void append_pathname(pathname_t *, char *); #ifndef NO_XFS int attr_list_path(pathname_t *, char *, const int, int, attrlist_cursor_t *); int attr_remove_path(pathname_t *, const char *, int); int attr_set_path(pathname_t *, const char *, const char *, const int, int); #endif void check_cwd(void); int creat_path(pathname_t *, mode_t); void dcache_enter(int, int); void dcache_init(void); fent_t *dcache_lookup(int); void dcache_purge(int); void del_from_flist(int, int); int dirid_to_name(char *, int); void doproc(void); void fent_to_name(pathname_t *, flist_t *, fent_t *); void fix_parent(int, int); void free_pathname(pathname_t *); int generate_fname(fent_t *, int, pathname_t *, int *, int *); int get_fname(int, long, pathname_t *, flist_t **, fent_t **, int *); void init_pathname(pathname_t *); int lchown_path(pathname_t *, uid_t, gid_t); int link_path(pathname_t *, pathname_t *); int lstat64_path(pathname_t *, struct stat64 *); void make_freq_table(void); int mkdir_path(pathname_t *, mode_t); int mknod_path(pathname_t *, mode_t, dev_t); void namerandpad(int, char *, int); int open_path(pathname_t *, int); DIR *opendir_path(pathname_t *); void process_freq(char *); int readlink_path(pathname_t *, char *, size_t); int rename_path(pathname_t *, pathname_t *); int rmdir_path(pathname_t *); void separate_pathname(pathname_t *, char *, pathname_t *); void show_ops(int, char *); int stat64_path(pathname_t *, struct stat64 *); int symlink_path(const char *, pathname_t *); int truncate64_path(pathname_t *, off64_t); int unlink_path(pathname_t *); void usage(void); void write_freq(void); void zero_freq(void); int main(int argc, char **argv) { char buf[10]; int c; char *dirname = NULL; int fd; int i; #ifndef NO_XFS int j; ptrdiff_t srval; #endif char *p; int stat; struct timeval t; int nousage=0; #ifndef NO_XFS xfs_error_injection_t err_inj; #endif errrange = errtag = 0; umask(0); nops = sizeof(ops) / sizeof(ops[0]); ops_end = &ops[nops]; myprog = argv[0]; while ((c = getopt(argc, argv, "d:e:f:i:n:p:rs:vwzHSX")) != -1) { switch (c) { case 'd': dirname = optarg; break; case 'e': sscanf(optarg, "%d", &errtag); if (errtag < 0) { errtag = -errtag; errrange = 1; } else if (errtag == 0) errtag = -1; if (errtag >= XFS_ERRTAG_MAX) { fprintf(stderr, "error tag %d too large (max %d)\n", errtag, XFS_ERRTAG_MAX - 1); exit(1); } break; case 'f': process_freq(optarg); break; case 'i': ilist = realloc(ilist, ++ilistlen * sizeof(*ilist)); ilist[ilistlen - 1] = strtol(optarg, &p, 16); break; case 'n': operations = atoi(optarg); break; case 'p': nproc = atoi(optarg); break; case 'r': namerand = 1; break; case 's': seed = strtoul(optarg, NULL, 0); break; case 'v': verbose = 1; break; case 'w': write_freq(); break; case 'z': zero_freq(); break; case 'S': show_ops(0, NULL); printf("\n"); nousage=1; break; case '?': fprintf(stderr, "%s - invalid parameters\n", myprog); /* fall through */ case 'H': usage(); exit(1); case 'X': no_xfs = 1; break; } } if (no_xfs && errtag) { fprintf(stderr, "error injection only works on XFS\n"); exit(1); } if (no_xfs) { int i; for (i = 0; ops+i < ops_end; ++i) { if (ops[i].isxfs) ops[i].freq = 0; } } if (!dirname) { /* no directory specified */ if (!nousage) usage(); exit(1); } (void)mkdir(dirname, 0777); if (chdir(dirname) < 0) { perror(dirname); exit(1); } sprintf(buf, "fss%x", getpid()); fd = creat(buf, 0666); if (lseek64(fd, (off64_t)(MAXFSIZE32 + 1ULL), SEEK_SET) < 0) maxfsize = (off64_t)MAXFSIZE32; else maxfsize = (off64_t)MAXFSIZE; make_freq_table(); dcache_init(); setlinebuf(stdout); if (!seed) { gettimeofday(&t, (void *)NULL); seed = (int)t.tv_sec ^ (int)t.tv_usec; printf("seed = %ld\n", seed); } #ifndef NO_XFS if (!no_xfs) { i = ioctl(fd, XFS_IOC_FSGEOMETRY, &geom); if (i >= 0 && geom.rtblocks) rtpct = MIN(MAX(geom.rtblocks * 100 / (geom.rtblocks + geom.datablocks), 1), 99); else rtpct = 0; } if (errtag != 0) { if (errrange == 0) { if (errtag <= 0) { srandom(seed); j = random() % 100; for (i = 0; i < j; i++) (void) random(); errtag = (random() % (XFS_ERRTAG_MAX-1)) + 1; } } else { srandom(seed); j = random() % 100; for (i = 0; i < j; i++) (void) random(); errtag += (random() % (XFS_ERRTAG_MAX - errtag)); } printf("Injecting failure on tag #%d\n", errtag); err_inj.errtag = errtag; err_inj.fd = fd; srval = ioctl(fd, XFS_IOC_ERROR_INJECTION, &err_inj); if (srval < -1) { perror("fsstress - XFS_SYSSGI error injection call"); close(fd); unlink(buf); exit(1); } } else #endif close(fd); unlink(buf); if (nproc == 1) { procid = 0; doproc(); } else { for (i = 0; i < nproc; i++) { if (fork() == 0) { procid = i; doproc(); return 0; } } while (wait(&stat) > 0) continue; } #ifndef NO_XFS if (errtag != 0) { err_inj.errtag = 0; err_inj.fd = fd; if((srval = ioctl(fd, XFS_IOC_ERROR_CLEARALL, &err_inj)) != 0) { fprintf(stderr, "Bad ej clear on %d (%d).\n", fd, errno); perror("fsstress - XFS_SYSSGI clear error injection call"); close(fd); exit(1); } close(fd); } #endif return 0; } void add_to_flist(int ft, int id, int parent) { fent_t *fep; flist_t *ftp; ftp = &flist[ft]; if (ftp->nfiles == ftp->nslots) { ftp->nslots += FLIST_SLOT_INCR; ftp->fents = realloc(ftp->fents, ftp->nslots * sizeof(fent_t)); } fep = &ftp->fents[ftp->nfiles++]; fep->id = id; fep->parent = parent; } void append_pathname(pathname_t *name, char *str) { int len; len = strlen(str); #ifdef DEBUG if (len && *str == '/' && name->len == 0) { fprintf(stderr, "fsstress: append_pathname failure\n"); chdir(homedir); abort(); /* NOTREACHED */ } #endif name->path = realloc(name->path, name->len + 1 + len); strcpy(&name->path[name->len], str); name->len += len; } #ifndef NO_XFS int attr_list_path(pathname_t *name, char *buffer, const int buffersize, int flags, attrlist_cursor_t *cursor) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = attr_list(name->path, buffer, buffersize, flags, cursor); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = attr_list_path(&newname, buffer, buffersize, flags, cursor); chdir(".."); } free_pathname(&newname); return rval; } int attr_remove_path(pathname_t *name, const char *attrname, int flags) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = attr_remove(name->path, attrname, flags); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = attr_remove_path(&newname, attrname, flags); chdir(".."); } free_pathname(&newname); return rval; } int attr_set_path(pathname_t *name, const char *attrname, const char *attrvalue, const int valuelength, int flags) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = attr_set(name->path, attrname, attrvalue, valuelength, flags); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = attr_set_path(&newname, attrname, attrvalue, valuelength, flags); chdir(".."); } free_pathname(&newname); return rval; } #endif void check_cwd(void) { #ifdef DEBUG struct stat64 statbuf; if (stat64(".", &statbuf) == 0 && statbuf.st_ino == top_ino) return; chdir(homedir); fprintf(stderr, "fsstress: check_cwd failure\n"); abort(); /* NOTREACHED */ #endif } int creat_path(pathname_t *name, mode_t mode) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = creat(name->path, mode); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = creat_path(&newname, mode); chdir(".."); } free_pathname(&newname); return rval; } void dcache_enter(int dirid, int slot) { dcache[dirid % NDCACHE] = slot; } void dcache_init(void) { int i; for (i = 0; i < NDCACHE; i++) dcache[i] = -1; } fent_t * dcache_lookup(int dirid) { fent_t *fep; int i; i = dcache[dirid % NDCACHE]; if (i >= 0 && (fep = &flist[FT_DIR].fents[i])->id == dirid) return fep; return NULL; } void dcache_purge(int dirid) { int *dcp; dcp = &dcache[dirid % NDCACHE]; if (*dcp >= 0 && flist[FT_DIR].fents[*dcp].id == dirid) *dcp = -1; } void del_from_flist(int ft, int slot) { flist_t *ftp; ftp = &flist[ft]; if (ft == FT_DIR) dcache_purge(ftp->fents[slot].id); if (slot != ftp->nfiles - 1) { if (ft == FT_DIR) dcache_purge(ftp->fents[ftp->nfiles - 1].id); ftp->fents[slot] = ftp->fents[--ftp->nfiles]; } else ftp->nfiles--; } fent_t * dirid_to_fent(int dirid) { fent_t *efep; fent_t *fep; flist_t *flp; if ((fep = dcache_lookup(dirid))) return fep; flp = &flist[FT_DIR]; for (fep = flp->fents, efep = &fep[flp->nfiles]; fep < efep; fep++) { if (fep->id == dirid) { dcache_enter(dirid, fep - flp->fents); return fep; } } return NULL; } void doproc(void) { struct stat64 statbuf; char buf[10]; int opno; int rval; opdesc_t *p; sprintf(buf, "p%x", procid); (void)mkdir(buf, 0777); if (chdir(buf) < 0 || stat64(".", &statbuf) < 0) { perror(buf); _exit(1); } top_ino = statbuf.st_ino; homedir = getcwd(NULL, -1); seed += procid; srandom(seed); if (namerand) namerand = random(); for (opno = 0; opno < operations; opno++) { p = &ops[freq_table[random() % freq_table_size]]; if ((unsigned long)p->func < 4096) abort(); p->func(opno, random()); /* * test for forced shutdown by stat'ing the test * directory. If this stat returns EIO, assume * the forced shutdown happened. */ if (errtag != 0 && opno % 100 == 0) { rval = stat64(".", &statbuf); if (rval == EIO) { fprintf(stderr, "Detected EIO\n"); return; } } } } void fent_to_name(pathname_t *name, flist_t *flp, fent_t *fep) { char buf[MAXNAMELEN]; int i; fent_t *pfep; if (fep == NULL) return; if (fep->parent != -1) { pfep = dirid_to_fent(fep->parent); fent_to_name(name, &flist[FT_DIR], pfep); append_pathname(name, "/"); } i = sprintf(buf, "%c%x", flp->tag, fep->id); namerandpad(fep->id, buf, i); append_pathname(name, buf); } void fix_parent(int oldid, int newid) { fent_t *fep; flist_t *flp; int i; int j; for (i = 0, flp = flist; i < FT_nft; i++, flp++) { for (j = 0, fep = flp->fents; j < flp->nfiles; j++, fep++) { if (fep->parent == oldid) fep->parent = newid; } } } void free_pathname(pathname_t *name) { if (name->path) { free(name->path); name->path = NULL; name->len = 0; } } int generate_fname(fent_t *fep, int ft, pathname_t *name, int *idp, int *v) { char buf[MAXNAMELEN]; flist_t *flp; int id; int j; int len; flp = &flist[ft]; len = sprintf(buf, "%c%x", flp->tag, id = nameseq++); namerandpad(id, buf, len); if (fep) { fent_to_name(name, &flist[FT_DIR], fep); append_pathname(name, "/"); } append_pathname(name, buf); *idp = id; *v = verbose; for (j = 0; !*v && j < ilistlen; j++) { if (ilist[j] == id) { *v = 1; break; } } return 1; } int get_fname(int which, long r, pathname_t *name, flist_t **flpp, fent_t **fepp, int *v) { int c; fent_t *fep; flist_t *flp; int i; int j; int x; for (i = 0, c = 0, flp = flist; i < FT_nft; i++, flp++) { if (which & (1 << i)) c += flp->nfiles; } if (c == 0) { if (flpp) *flpp = NULL; if (fepp) *fepp = NULL; *v = verbose; return 0; } x = (int)(r % c); for (i = 0, c = 0, flp = flist; i < FT_nft; i++, flp++) { if (which & (1 << i)) { if (x < c + flp->nfiles) { fep = &flp->fents[x - c]; if (name) fent_to_name(name, flp, fep); if (flpp) *flpp = flp; if (fepp) *fepp = fep; *v = verbose; for (j = 0; !*v && j < ilistlen; j++) { if (ilist[j] == fep->id) { *v = 1; break; } } return 1; } c += flp->nfiles; } } #ifdef DEBUG fprintf(stderr, "fsstress: get_fname failure\n"); abort(); #endif return -1; /* NOTREACHED */ } void init_pathname(pathname_t *name) { name->len = 0; name->path = NULL; } int lchown_path(pathname_t *name, uid_t owner, gid_t group) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = lchown(name->path, owner, group); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = lchown_path(&newname, owner, group); chdir(".."); } free_pathname(&newname); return rval; } int link_path(pathname_t *name1, pathname_t *name2) { char buf1[MAXNAMELEN]; char buf2[MAXNAMELEN]; int down1; pathname_t newname1; pathname_t newname2; int rval; rval = link(name1->path, name2->path); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name1, buf1, &newname1); separate_pathname(name2, buf2, &newname2); if (strcmp(buf1, buf2) == 0) { if (chdir(buf1) == 0) { rval = link_path(&newname1, &newname2); chdir(".."); } } else { if (strcmp(buf1, "..") == 0) down1 = 0; else if (strcmp(buf2, "..") == 0) down1 = 1; else if (strlen(buf1) == 0) down1 = 0; else if (strlen(buf2) == 0) down1 = 1; else down1 = MAX(newname1.len, 3 + name2->len) <= MAX(3 + name1->len, newname2.len); if (down1) { free_pathname(&newname2); append_pathname(&newname2, "../"); append_pathname(&newname2, name2->path); if (chdir(buf1) == 0) { rval = link_path(&newname1, &newname2); chdir(".."); } } else { free_pathname(&newname1); append_pathname(&newname1, "../"); append_pathname(&newname1, name1->path); if (chdir(buf2) == 0) { rval = link_path(&newname1, &newname2); chdir(".."); } } } free_pathname(&newname1); free_pathname(&newname2); return rval; } int lstat64_path(pathname_t *name, struct stat64 *sbuf) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = lstat64(name->path, sbuf); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = lstat64_path(&newname, sbuf); chdir(".."); } free_pathname(&newname); return rval; } void make_freq_table(void) { int f; int i; opdesc_t *p; for (p = ops, f = 0; p < ops_end; p++) f += p->freq; freq_table = malloc(f * sizeof(*freq_table)); freq_table_size = f; for (p = ops, i = 0; p < ops_end; p++) { for (f = 0; f < p->freq; f++, i++) freq_table[i] = p->op; } } int mkdir_path(pathname_t *name, mode_t mode) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = mkdir(name->path, mode); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = mkdir_path(&newname, mode); chdir(".."); } free_pathname(&newname); return rval; } int mknod_path(pathname_t *name, mode_t mode, dev_t dev) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = mknod(name->path, mode, dev); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = mknod_path(&newname, mode, dev); chdir(".."); } free_pathname(&newname); return rval; } void namerandpad(int id, char *buf, int i) { int bucket; static int buckets[] = { 2, 4, 8, 16, 32, 64, 128, MAXNAMELEN - 1 }; int padlen; int padmod; if (namerand == 0) return; bucket = (id ^ namerand) % (sizeof(buckets) / sizeof(buckets[0])); padmod = buckets[bucket] + 1 - i; if (padmod <= 0) return; padlen = (id ^ namerand) % padmod; if (padlen) { memset(&buf[i], 'X', padlen); buf[i + padlen] = '\0'; } } int open_path(pathname_t *name, int oflag) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = open(name->path, oflag); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = open_path(&newname, oflag); chdir(".."); } free_pathname(&newname); return rval; } DIR * opendir_path(pathname_t *name) { char buf[MAXNAMELEN]; pathname_t newname; DIR *rval; rval = opendir(name->path); if (rval || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = opendir_path(&newname); chdir(".."); } free_pathname(&newname); return rval; } void process_freq(char *arg) { opdesc_t *p; char *s; s = strchr(arg, '='); if (s == NULL) { fprintf(stderr, "bad argument '%s'\n", arg); exit(1); } *s++ = '\0'; for (p = ops; p < ops_end; p++) { if (strcmp(arg, p->name) == 0) { p->freq = atoi(s); return; } } fprintf(stderr, "can't find op type %s for -f\n", arg); exit(1); } int readlink_path(pathname_t *name, char *lbuf, size_t lbufsiz) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = readlink(name->path, lbuf, lbufsiz); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = readlink_path(&newname, lbuf, lbufsiz); chdir(".."); } free_pathname(&newname); return rval; } int rename_path(pathname_t *name1, pathname_t *name2) { char buf1[MAXNAMELEN]; char buf2[MAXNAMELEN]; int down1; pathname_t newname1; pathname_t newname2; int rval; rval = rename(name1->path, name2->path); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name1, buf1, &newname1); separate_pathname(name2, buf2, &newname2); if (strcmp(buf1, buf2) == 0) { if (chdir(buf1) == 0) { rval = rename_path(&newname1, &newname2); chdir(".."); } } else { if (strcmp(buf1, "..") == 0) down1 = 0; else if (strcmp(buf2, "..") == 0) down1 = 1; else if (strlen(buf1) == 0) down1 = 0; else if (strlen(buf2) == 0) down1 = 1; else down1 = MAX(newname1.len, 3 + name2->len) <= MAX(3 + name1->len, newname2.len); if (down1) { free_pathname(&newname2); append_pathname(&newname2, "../"); append_pathname(&newname2, name2->path); if (chdir(buf1) == 0) { rval = rename_path(&newname1, &newname2); chdir(".."); } } else { free_pathname(&newname1); append_pathname(&newname1, "../"); append_pathname(&newname1, name1->path); if (chdir(buf2) == 0) { rval = rename_path(&newname1, &newname2); chdir(".."); } } } free_pathname(&newname1); free_pathname(&newname2); return rval; } int rmdir_path(pathname_t *name) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = rmdir(name->path); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = rmdir_path(&newname); chdir(".."); } free_pathname(&newname); return rval; } void separate_pathname(pathname_t *name, char *buf, pathname_t *newname) { char *slash; init_pathname(newname); slash = strchr(name->path, '/'); if (slash == NULL) { buf[0] = '\0'; return; } *slash = '\0'; strcpy(buf, name->path); *slash = '/'; append_pathname(newname, slash + 1); } #define WIDTH 80 void show_ops(int flag, char *lead_str) { opdesc_t *p; if (flag<0) { /* print in list form */ int x = WIDTH; for (p = ops; p < ops_end; p++) { if (lead_str != NULL && x+strlen(p->name)>=WIDTH-5) x=printf("%s%s", (p==ops)?"":"\n", lead_str); x+=printf("%s ", p->name); } printf("\n"); } else { int f; for (f = 0, p = ops; p < ops_end; p++) f += p->freq; if (f == 0) flag = 1; for (p = ops; p < ops_end; p++) { if (flag != 0 || p->freq > 0) { if (lead_str != NULL) printf("%s", lead_str); printf("%20s %d/%d %s\n", p->name, p->freq, f, (p->iswrite == 0) ? " " : "write op"); } } } } int stat64_path(pathname_t *name, struct stat64 *sbuf) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = stat64(name->path, sbuf); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = stat64_path(&newname, sbuf); chdir(".."); } free_pathname(&newname); return rval; } int symlink_path(const char *name1, pathname_t *name) { char buf[MAXNAMELEN]; pathname_t newname; int rval; if (!strcmp(name1, name->path)) { printf("yikes! %s %s\n", name1, name->path); return 0; } rval = symlink(name1, name->path); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = symlink_path(name1, &newname); chdir(".."); } free_pathname(&newname); return rval; } int truncate64_path(pathname_t *name, off64_t length) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = truncate64(name->path, length); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = truncate64_path(&newname, length); chdir(".."); } free_pathname(&newname); return rval; } int unlink_path(pathname_t *name) { char buf[MAXNAMELEN]; pathname_t newname; int rval; rval = unlink(name->path); if (rval >= 0 || errno != ENAMETOOLONG) return rval; separate_pathname(name, buf, &newname); if (chdir(buf) == 0) { rval = unlink_path(&newname); chdir(".."); } free_pathname(&newname); return rval; } void usage(void) { printf("Usage: %s -H or\n", myprog); printf(" %s [-d dir][-e errtg][-f op_name=freq][-n nops]\n", myprog); printf(" [-p nproc][-r len][-s seed][-v][-w][-z][-S]\n"); printf("where\n"); printf(" -d dir specifies the base directory for operations\n"); printf(" -e errtg specifies error injection stuff\n"); printf(" -f op_name=freq changes the frequency of option name to freq\n"); printf(" the valid operation names are:\n"); show_ops(-1, " "); printf(" -n nops specifies the no. of operations per process (default 1)\n"); printf(" -p nproc specifies the no. of processes (default 1)\n"); printf(" -r specifies random name padding\n"); printf(" -s seed specifies the seed for the random generator (default random)\n"); printf(" -v specifies verbose mode\n"); printf(" -w zeros frequencies of non-write operations\n"); printf(" -z zeros frequencies of all operations\n"); printf(" -S prints the table of operations (omitting zero frequency)\n"); printf(" -H prints usage and exits\n"); printf(" -X don't do anything XFS specific (default with -DNO_XFS)\n"); } void write_freq(void) { opdesc_t *p; for (p = ops; p < ops_end; p++) { if (!p->iswrite) p->freq = 0; } } void zero_freq(void) { opdesc_t *p; for (p = ops; p < ops_end; p++) p->freq = 0; } #ifndef NO_XFS void allocsp_f(int opno, long r) { int e; pathname_t f; int fd; struct flock64 fl; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: allocsp - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDWR); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: allocsp - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: allocsp - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; fl.l_whence = SEEK_SET; fl.l_start = off; fl.l_len = 0; e = ioctl(fd, XFS_IOC_ALLOCSP64, &fl) < 0 ? errno : 0; if (v) printf("%d/%d: ioctl(XFS_IOC_ALLOCSP64) %s %lld 0 %d\n", procid, opno, f.path, off, e); free_pathname(&f); close(fd); } void attr_remove_f(int opno, long r) { attrlist_ent_t *aep; attrlist_t *alist; char *aname; char buf[4096]; attrlist_cursor_t cursor; int e; int ent; pathname_t f; int total; int v; int which; init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) append_pathname(&f, "."); total = 0; bzero(&cursor, sizeof(cursor)); do { e = attr_list_path(&f, buf, sizeof(buf), ATTR_DONTFOLLOW, &cursor); check_cwd(); if (e) break; alist = (attrlist_t *)buf; total += alist->al_count; } while (alist->al_more); if (total == 0) { if (v) printf("%d/%d: attr_remove - no attrs for %s\n", procid, opno, f.path); free_pathname(&f); return; } which = (int)(random() % total); bzero(&cursor, sizeof(cursor)); ent = 0; aname = NULL; do { e = attr_list_path(&f, buf, sizeof(buf), ATTR_DONTFOLLOW, &cursor); check_cwd(); if (e) break; alist = (attrlist_t *)buf; if (which < ent + alist->al_count) { aep = (attrlist_ent_t *) &buf[alist->al_offset[which - ent]]; aname = aep->a_name; break; } ent += alist->al_count; } while (alist->al_more); if (aname == NULL) { if (v) printf( "%d/%d: attr_remove - name %d not found at %s\n", procid, opno, which, f.path); free_pathname(&f); return; } e = attr_remove_path(&f, aname, ATTR_DONTFOLLOW) < 0 ? errno : 0; check_cwd(); if (v) printf("%d/%d: attr_remove %s %s %d\n", procid, opno, f.path, aname, e); free_pathname(&f); } void attr_set_f(int opno, long r) { char aname[10]; char *aval; int e; pathname_t f; int len; static int lengths[] = { 10, 100, 1000, 10000 }; int li; int v; init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) append_pathname(&f, "."); sprintf(aname, "a%x", nameseq++); li = (int)(random() % (sizeof(lengths) / sizeof(lengths[0]))); len = (int)(random() % lengths[li]); if (len == 0) len = 1; aval = malloc(len); memset(aval, nameseq & 0xff, len); e = attr_set_path(&f, aname, aval, len, ATTR_DONTFOLLOW) < 0 ? errno : 0; check_cwd(); free(aval); if (v) printf("%d/%d: attr_set %s %s %d\n", procid, opno, f.path, aname, e); free_pathname(&f); } void bulkstat_f(int opno, long r) { int count; int fd; __uint64_t last; int nent; xfs_bstat_t *t; __int64_t total; xfs_fsop_bulkreq_t bsr; last = 0; nent = (r % 999) + 2; t = malloc(nent * sizeof(*t)); fd = open(".", O_RDONLY); total = 0; bsr.lastip=&last; bsr.icount=nent; bsr.ubuffer=t; bsr.ocount=&count; while (ioctl(fd, XFS_IOC_FSBULKSTAT, &bsr) == 0 && count > 0) total += count; free(t); if (verbose) printf("%d/%d: bulkstat nent %d total %lld\n", procid, opno, nent, total); close(fd); } void bulkstat1_f(int opno, long r) { int e; pathname_t f; int fd; int good; __uint64_t ino; struct stat64 s; xfs_bstat_t t; int v; xfs_fsop_bulkreq_t bsr; good = random() & 1; if (good) { /* use an inode we know exists */ init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) append_pathname(&f, "."); ino = stat64_path(&f, &s) < 0 ? (ino64_t)r : s.st_ino; check_cwd(); free_pathname(&f); } else { /* * pick a random inode * * note this can generate kernel warning messages * since bulkstat_one will read the disk block that * would contain a given inode even if that disk * block doesn't contain inodes. * * this is detected later, but not until after the * warning is displayed. * * "XFS: device 0x825- bad inode magic/vsn daddr 0x0 #0" * */ ino = (ino64_t)r; v = verbose; } fd = open(".", O_RDONLY); bsr.lastip=&ino; bsr.icount=1; bsr.ubuffer=&t; bsr.ocount=NULL; e = ioctl(fd, XFS_IOC_FSBULKSTAT_SINGLE, &bsr) < 0 ? errno : 0; if (v) printf("%d/%d: bulkstat1 %s ino %lld %d\n", procid, opno, good?"real":"random", (int64_t)ino, e); close(fd); } #endif void chown_f(int opno, long r) { int e; pathname_t f; int nbits; uid_t u; int v; init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) append_pathname(&f, "."); u = (uid_t)random(); nbits = (int)(random() % 32); u &= (1 << nbits) - 1; e = lchown_path(&f, u, -1) < 0 ? errno : 0; check_cwd(); if (v) printf("%d/%d: chown %s %d %d\n", procid, opno, f.path, u, e); free_pathname(&f); } void creat_f(int opno, long r) { int e; int e1; int extsize; pathname_t f; int fd; fent_t *fep; int id; int parid; int type; int v; int v1; int esz=0; if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v1)) parid = -1; else parid = fep->id; init_pathname(&f); type = rtpct ? ((random() % 100) > rtpct ? FT_REG : FT_RTF) : FT_REG; if (type == FT_RTF) extsize = (random() % 10) + 1; else extsize = 0; e = generate_fname(fep, type, &f, &id, &v); v |= v1; if (!e) { if (v) { fent_to_name(&f, &flist[FT_DIR], fep); printf("%d/%d: creat - no filename from %s\n", procid, opno, f.path); } free_pathname(&f); return; } fd = creat_path(&f, 0666); e = fd < 0 ? errno : 0; e1 = 0; check_cwd(); esz = 0; if (fd >= 0) { #ifndef NO_XFS struct fsxattr a; if (extsize && ioctl(fd, XFS_IOC_FSGETXATTR, &a) >= 0) { a.fsx_xflags |= XFS_XFLAG_REALTIME; a.fsx_extsize = geom.rtextsize * geom.blocksize * extsize; if (ioctl(fd, XFS_IOC_FSSETXATTR, &a) < 0) e1 = errno; esz = a.fsx_estsize; } add_to_flist(type, id, parid); #endif close(fd); } if (v) printf("%d/%d: creat %s x:%d %d %d\n", procid, opno, f.path, esz, e, e1); free_pathname(&f); } int setdirect(int fd) { static int no_direct; int flags; if (no_direct) return 0; flags = fcntl(fd, F_GETFL, 0); if (flags < 0) return 0; if (fcntl(fd, F_SETFL, flags|O_DIRECT) < 0) { if (no_xfs) { no_direct = 1; return 0; } printf("cannot set O_DIRECT: %s\n", strerror(errno)); return 0; } return 1; } void dread_f(int opno, long r) { __int64_t align; char *buf; struct dioattr diob; int e; pathname_t f; int fd; size_t len; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: dread - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDONLY); if (!setdirect(fd)) { return; } e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: dread - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: dread - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } if (stb.st_size == 0) { if (v) printf("%d/%d: dread - %s zero size\n", procid, opno, f.path); free_pathname(&f); close(fd); return; } if (no_xfs) { diob.d_miniosz = stb.st_blksize; diob.d_maxiosz = stb.st_blksize * 256; /* good number ? */ diob.d_mem = stb.st_blksize; } #ifndef NO_XFS else if (ioctl(fd, XFS_IOC_DIOINFO, &diob) < 0) { if (v) printf( "%d/%d: dread - ioctl(fd, XFS_IOC_DIOINFO) %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } #endif align = (__int64_t)diob.d_miniosz; lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % stb.st_size); off -= (off % align); lseek64(fd, off, SEEK_SET); len = (random() % (getpagesize() * 32)) + 1; len -= (len % align); if (len <= 0) len = align; else if (len > diob.d_maxiosz) len = diob.d_maxiosz; buf = memalign(diob.d_mem, len); e = read(fd, buf, len) < 0 ? errno : 0; free(buf); if (v) printf("%d/%d: dread %s [%lld,%d] %d\n", procid, opno, f.path, off, len, e); free_pathname(&f); close(fd); } void dwrite_f(int opno, long r) { __int64_t align; char *buf; struct dioattr diob; int e; pathname_t f; int fd; size_t len; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: dwrite - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_WRONLY); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: dwrite - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (!setdirect(fd)) return; if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: dwrite - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } if (no_xfs) { diob.d_miniosz = stb.st_blksize; diob.d_maxiosz = stb.st_blksize * 256; /* good number ? */ diob.d_mem = stb.st_blksize; } #ifndef NO_XFS else if (ioctl(fd, XFS_IOC_DIOINFO, &diob) < 0) { if (v) printf( "%d/%d: dwrite - ioctl(fd, XFS_IOC_DIOINFO) %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } #endif align = (__int64_t)diob.d_miniosz; lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off -= (off % align); lseek64(fd, off, SEEK_SET); len = (random() % (getpagesize() * 32)) + 1; len -= (len % align); if (len <= 0) len = align; else if (len > diob.d_maxiosz) len = diob.d_maxiosz; buf = memalign(diob.d_mem, len); off %= maxfsize; lseek64(fd, off, SEEK_SET); memset(buf, nameseq & 0xff, len); e = write(fd, buf, len) < 0 ? errno : 0; free(buf); if (v) printf("%d/%d: dwrite %s [%lld,%d] %d\n", procid, opno, f.path, off, len, e); free_pathname(&f); close(fd); } void fdatasync_f(int opno, long r) { int e; pathname_t f; int fd; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: fdatasync - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_WRONLY); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: fdatasync - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } e = fdatasync(fd) < 0 ? errno : 0; if (v) printf("%d/%d: fdatasync %s %d\n", procid, opno, f.path, e); free_pathname(&f); close(fd); } #ifndef NO_XFS void freesp_f(int opno, long r) { int e; pathname_t f; int fd; struct flock64 fl; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: freesp - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDWR); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: freesp - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: freesp - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; fl.l_whence = SEEK_SET; fl.l_start = off; fl.l_len = 0; e = ioctl(fd, XFS_IOC_FREESP64, &fl) < 0 ? errno : 0; if (v) printf("%d/%d: ioctl(XFS_IOC_FREESP64) %s %lld 0 %d\n", procid, opno, f.path, off, e); free_pathname(&f); close(fd); } #endif void fsync_f(int opno, long r) { int e; pathname_t f; int fd; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: fsync - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_WRONLY); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: fsync - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } e = fsync(fd) < 0 ? errno : 0; if (v) printf("%d/%d: fsync %s %d\n", procid, opno, f.path, e); free_pathname(&f); close(fd); } void getdents_f(int opno, long r) { DIR *dir; pathname_t f; int v; init_pathname(&f); if (!get_fname(FT_DIRm, r, &f, NULL, NULL, &v)) append_pathname(&f, "."); dir = opendir_path(&f); check_cwd(); if (dir == NULL) { if (v) printf("%d/%d: getdents - can't open %s\n", procid, opno, f.path); free_pathname(&f); return; } while (readdir64(dir) != NULL) continue; if (v) printf("%d/%d: getdents %s 0\n", procid, opno, f.path); free_pathname(&f); closedir(dir); } void link_f(int opno, long r) { int e; pathname_t f; fent_t *fep; flist_t *flp; int id; pathname_t l; int parid; int v; int v1; init_pathname(&f); if (!get_fname(FT_NOTDIR, r, &f, &flp, NULL, &v1)) { if (v1) printf("%d/%d: link - no file\n", procid, opno); free_pathname(&f); return; } if (!get_fname(FT_DIRm, random(), NULL, NULL, &fep, &v)) parid = -1; else parid = fep->id; v |= v1; init_pathname(&l); e = generate_fname(fep, flp - flist, &l, &id, &v1); v |= v1; if (!e) { if (v) { fent_to_name(&l, &flist[FT_DIR], fep); printf("%d/%d: link - no filename from %s\n", procid, opno, l.path); } free_pathname(&l); free_pathname(&f); return; } e = link_path(&f, &l) < 0 ? errno : 0; check_cwd(); if (e == 0) add_to_flist(flp - flist, id, parid); if (v) printf("%d/%d: link %s %s %d\n", procid, opno, f.path, l.path, e); free_pathname(&l); free_pathname(&f); } void mkdir_f(int opno, long r) { int e; pathname_t f; fent_t *fep; int id; int parid; int v; int v1; if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v)) parid = -1; else parid = fep->id; init_pathname(&f); e = generate_fname(fep, FT_DIR, &f, &id, &v1); v |= v1; if (!e) { if (v) { fent_to_name(&f, &flist[FT_DIR], fep); printf("%d/%d: mkdir - no filename from %s\n", procid, opno, f.path); } free_pathname(&f); return; } e = mkdir_path(&f, 0777) < 0 ? errno : 0; check_cwd(); if (e == 0) add_to_flist(FT_DIR, id, parid); if (v) printf("%d/%d: mkdir %s %d\n", procid, opno, f.path, e); free_pathname(&f); } void mknod_f(int opno, long r) { int e; pathname_t f; fent_t *fep; int id; int parid; int v; int v1; if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v)) parid = -1; else parid = fep->id; init_pathname(&f); e = generate_fname(fep, FT_DEV, &f, &id, &v1); v |= v1; if (!e) { if (v) { fent_to_name(&f, &flist[FT_DIR], fep); printf("%d/%d: mknod - no filename from %s\n", procid, opno, f.path); } free_pathname(&f); return; } e = mknod_path(&f, S_IFCHR|0444, 0) < 0 ? errno : 0; check_cwd(); if (e == 0) add_to_flist(FT_DEV, id, parid); if (v) printf("%d/%d: mknod %s %d\n", procid, opno, f.path, e); free_pathname(&f); } void read_f(int opno, long r) { char *buf; int e; pathname_t f; int fd; size_t len; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: read - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDONLY); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: read - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: read - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } if (stb.st_size == 0) { if (v) printf("%d/%d: read - %s zero size\n", procid, opno, f.path); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % stb.st_size); lseek64(fd, off, SEEK_SET); len = (random() % (getpagesize() * 32)) + 1; buf = malloc(len); e = read(fd, buf, len) < 0 ? errno : 0; free(buf); if (v) printf("%d/%d: read %s [%lld,%d] %d\n", procid, opno, f.path, off, len, e); free_pathname(&f); close(fd); } void readlink_f(int opno, long r) { char buf[PATH_MAX]; int e; pathname_t f; int v; init_pathname(&f); if (!get_fname(FT_SYMm, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: readlink - no filename\n", procid, opno); free_pathname(&f); return; } e = readlink_path(&f, buf, PATH_MAX) < 0 ? errno : 0; check_cwd(); if (v) printf("%d/%d: readlink %s %d\n", procid, opno, f.path, e); free_pathname(&f); } void rename_f(int opno, long r) { fent_t *dfep; int e; pathname_t f; fent_t *fep; flist_t *flp; int id; pathname_t newf; int oldid; int parid; int v; int v1; init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, &flp, &fep, &v1)) { if (v1) printf("%d/%d: rename - no filename\n", procid, opno); free_pathname(&f); return; } if (!get_fname(FT_DIRm, random(), NULL, NULL, &dfep, &v)) parid = -1; else parid = dfep->id; v |= v1; init_pathname(&newf); e = generate_fname(dfep, flp - flist, &newf, &id, &v1); v |= v1; if (!e) { if (v) { fent_to_name(&f, &flist[FT_DIR], dfep); printf("%d/%d: rename - no filename from %s\n", procid, opno, f.path); } free_pathname(&newf); free_pathname(&f); return; } e = rename_path(&f, &newf) < 0 ? errno : 0; check_cwd(); if (e == 0) { if (flp - flist == FT_DIR) { oldid = fep->id; fix_parent(oldid, id); } del_from_flist(flp - flist, fep - flp->fents); add_to_flist(flp - flist, id, parid); } if (v) printf("%d/%d: rename %s to %s %d\n", procid, opno, f.path, newf.path, e); free_pathname(&newf); free_pathname(&f); } #ifndef NO_XFS void resvsp_f(int opno, long r) { int e; pathname_t f; int fd; struct flock64 fl; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: resvsp - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDWR); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: resvsp - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: resvsp - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; fl.l_whence = SEEK_SET; fl.l_start = off; fl.l_len = (off64_t)(random() % (1024 * 1024)); e = ioctl(fd, XFS_IOC_RESVSP64, &fl) < 0 ? errno : 0; if (v) printf("%d/%d: ioctl(XFS_IOC_RESVSP64) %s %lld %lld %d\n", procid, opno, f.path, off, fl.l_len, e); free_pathname(&f); close(fd); } #endif void rmdir_f(int opno, long r) { int e; pathname_t f; fent_t *fep; int v; init_pathname(&f); if (!get_fname(FT_DIRm, r, &f, NULL, &fep, &v)) { if (v) printf("%d/%d: rmdir - no directory\n", procid, opno); free_pathname(&f); return; } e = rmdir_path(&f) < 0 ? errno : 0; check_cwd(); if (e == 0) del_from_flist(FT_DIR, fep - flist[FT_DIR].fents); if (v) printf("%d/%d: rmdir %s %d\n", procid, opno, f.path, e); free_pathname(&f); } void stat_f(int opno, long r) { int e; pathname_t f; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: stat - no entries\n", procid, opno); free_pathname(&f); return; } e = lstat64_path(&f, &stb) < 0 ? errno : 0; check_cwd(); if (v) printf("%d/%d: stat %s %d\n", procid, opno, f.path, e); free_pathname(&f); } void symlink_f(int opno, long r) { int e; pathname_t f; fent_t *fep; int i; int id; int len; int parid; int v; int v1; char *val; if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v)) parid = -1; else parid = fep->id; init_pathname(&f); e = generate_fname(fep, FT_SYM, &f, &id, &v1); v |= v1; if (!e) { if (v) { fent_to_name(&f, &flist[FT_DIR], fep); printf("%d/%d: symlink - no filename from %s\n", procid, opno, f.path); } free_pathname(&f); return; } len = (int)(random() % PATH_MAX); val = malloc(len + 1); if (len) memset(val, 'x', len); val[len] = '\0'; for (i = 10; i < len - 1; i += 10) val[i] = '/'; e = symlink_path(val, &f) < 0 ? errno : 0; check_cwd(); if (e == 0) add_to_flist(FT_SYM, id, parid); free(val); if (v) printf("%d/%d: symlink %s %d\n", procid, opno, f.path, e); free_pathname(&f); } /* ARGSUSED */ void sync_f(int opno, long r) { sync(); if (verbose) printf("%d/%d: sync\n", procid, opno); } void truncate_f(int opno, long r) { int e; pathname_t f; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: truncate - no filename\n", procid, opno); free_pathname(&f); return; } e = stat64_path(&f, &stb) < 0 ? errno : 0; check_cwd(); if (e > 0) { if (v) printf("%d/%d: truncate - stat64 %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; e = truncate64_path(&f, off) < 0 ? errno : 0; check_cwd(); if (v) printf("%d/%d: truncate %s %lld %d\n", procid, opno, f.path, off, e); free_pathname(&f); } void unlink_f(int opno, long r) { int e; pathname_t f; fent_t *fep; flist_t *flp; int v; init_pathname(&f); if (!get_fname(FT_NOTDIR, r, &f, &flp, &fep, &v)) { if (v) printf("%d/%d: unlink - no file\n", procid, opno); free_pathname(&f); return; } e = unlink_path(&f) < 0 ? errno : 0; check_cwd(); if (e == 0) del_from_flist(flp - flist, fep - flp->fents); if (v) printf("%d/%d: unlink %s %d\n", procid, opno, f.path, e); free_pathname(&f); } #ifndef NO_XFS void unresvsp_f(int opno, long r) { int e; pathname_t f; int fd; struct flock64 fl; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: unresvsp - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_RDWR); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: unresvsp - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: unresvsp - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; fl.l_whence = SEEK_SET; fl.l_start = off; fl.l_len = (off64_t)(random() % (1 << 20)); e = ioctl(fd, XFS_IOC_UNRESVSP64, &fl) < 0 ? errno : 0; if (v) printf("%d/%d: ioctl(XFS_IOC_UNRESVSP64) %s %lld %lld %d\n", procid, opno, f.path, off, fl.l_len, e); free_pathname(&f); close(fd); } #endif void write_f(int opno, long r) { char *buf; int e; pathname_t f; int fd; size_t len; __int64_t lr; off64_t off; struct stat64 stb; int v; init_pathname(&f); if (!get_fname(FT_REGm, r, &f, NULL, NULL, &v)) { if (v) printf("%d/%d: write - no filename\n", procid, opno); free_pathname(&f); return; } fd = open_path(&f, O_WRONLY); e = fd < 0 ? errno : 0; check_cwd(); if (fd < 0) { if (v) printf("%d/%d: write - open %s failed %d\n", procid, opno, f.path, e); free_pathname(&f); return; } if (fstat64(fd, &stb) < 0) { if (v) printf("%d/%d: write - fstat64 %s failed %d\n", procid, opno, f.path, errno); free_pathname(&f); close(fd); return; } lr = ((__int64_t)random() << 32) + random(); off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE)); off %= maxfsize; lseek64(fd, off, SEEK_SET); len = (random() % (getpagesize() * 32)) + 1; buf = malloc(len); memset(buf, nameseq & 0xff, len); e = write(fd, buf, len) < 0 ? errno : 0; free(buf); if (v) printf("%d/%d: write %s [%lld,%d] %d\n", procid, opno, f.path, off, len, e); free_pathname(&f); close(fd); }