From a693a82dfad06ba8567f89a81445e169aaaa3379 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 25 May 2015 22:27:47 -0400 Subject: [PATCH] Add fsstress to contrib so it can be built for use in Android Signed-off-by: Theodore Ts'o --- contrib/Android.mk | 36 + contrib/fsstress.c | 2701 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 2737 insertions(+) create mode 100644 contrib/Android.mk create mode 100644 contrib/fsstress.c diff --git a/contrib/Android.mk b/contrib/Android.mk new file mode 100644 index 00000000..9557320d --- /dev/null +++ b/contrib/Android.mk @@ -0,0 +1,36 @@ +LOCAL_PATH := $(call my-dir) + +########################################################################### +# Build fsstress +# +fsstress_src_files := \ + fsstress.c + +fsstress_c_includes := + +fsstress_cflags := -O2 -g -W -Wall + +fsstress_shared_libraries := + +fsstress_system_shared_libraries := libc + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := $(fsstress_src_files) +mke2fs_c_includesLOCAL_CFLAGS := $(fsstress_cflags) +LOCAL_SYSTEM_SHARED_LIBRARIES := $(fsstress_system_shared_libraries) +LOCAL_MODULE := fsstress +LOCAL_MODULE_TAGS := optional + +include $(BUILD_EXECUTABLE) + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := $(fsstress_src_files) +LOCAL_CFLAGS := $(fsstress_cflags) +LOCAL_MODULE := fsstress_host +LOCAL_MODULE_STEM := fsstress +LOCAL_MODULE_TAGS := optional + +include $(BUILD_HOST_EXECUTABLE) + diff --git a/contrib/fsstress.c b/contrib/fsstress.c new file mode 100644 index 00000000..2a983482 --- /dev/null +++ b/contrib/fsstress.c @@ -0,0 +1,2701 @@ +/* + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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/ + */ + +#define NO_XFS +#define HAVE_SYS_PRCTL_H +#define _LARGEFILE64_SOURCE + +#define MAXNAMELEN 1024 +struct dioattr { + int d_miniosz, d_maxiosz, d_mem; +}; + +#define MIN(a,b) ((a)<(b) ? (a):(b)) +#define MAX(a,b) ((a)>(b) ? (a):(b)) + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef O_DIRECT +#define O_DIRECT 040000 +#endif + +#ifdef HAVE_SYS_PRCTL_H +# include +#endif + +#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, 0}, + {OP_CREAT, "creat", creat_f, 4, 1, 0}, + {OP_DREAD, "dread", dread_f, 4, 0, 0}, + {OP_DWRITE, "dwrite", dwrite_f, 4, 1, 0}, + {OP_FDATASYNC, "fdatasync", fdatasync_f, 1, 1, 0}, +#ifndef NO_XFS + {OP_FREESP, "freesp", freesp_f, 1, 1, 1}, +#endif + {OP_FSYNC, "fsync", fsync_f, 1, 1, 0}, + {OP_GETDENTS, "getdents", getdents_f, 1, 0, 0}, + {OP_LINK, "link", link_f, 1, 1, 0}, + {OP_MKDIR, "mkdir", mkdir_f, 2, 1, 0}, + {OP_MKNOD, "mknod", mknod_f, 2, 1, 0}, + {OP_READ, "read", read_f, 1, 0, 0}, + {OP_READLINK, "readlink", readlink_f, 1, 0, 0}, + {OP_RENAME, "rename", rename_f, 2, 1, 0}, +#ifndef NO_XFS + {OP_RESVSP, "resvsp", resvsp_f, 1, 1, 1}, +#endif + {OP_RMDIR, "rmdir", rmdir_f, 1, 1, 0}, + {OP_STAT, "stat", stat_f, 1, 0, 0}, + {OP_SYMLINK, "symlink", symlink_f, 2, 1, 0}, + {OP_SYNC, "sync", sync_f, 1, 0, 0}, + {OP_TRUNCATE, "truncate", truncate_f, 2, 1, 0}, + {OP_UNLINK, "unlink", unlink_f, 1, 1, 0}, +#ifndef NO_XFS + {OP_UNRESVSP, "unresvsp", unresvsp_f, 1, 1, 1}, +#endif + {OP_WRITE, "write", write_f, 4, 1, 0}, +}, *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 +sig_atomic_t should_stop = 0; + +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); + +void sg_handler(int signum) +{ + should_stop = 1; +} + +int main(int argc, char **argv) +{ + char buf[10]; + int c; + char *dirname = NULL; + int fd; + int i; + int cleanup = 0; + int loops = 1; + int loopcntr = 1; + char cmd[256]; +#ifndef NO_XFS + int j; +#endif + char *p; + int stat; + struct timeval t; +#ifndef NO_XFS + ptrdiff_t srval; +#endif + int nousage = 0; +#ifndef NO_XFS + xfs_error_injection_t err_inj; +#endif + struct sigaction action; + + errrange = errtag = 0; + umask(0); + nops = sizeof(ops) / sizeof(ops[0]); + ops_end = &ops[nops]; + myprog = argv[0]; + while ((c = getopt(argc, argv, "cd:e:f:i:l:n:p:rs:vwzHSX")) != -1) { + switch (c) { + case 'c': + /*Don't cleanup */ + cleanup = 1; + break; + 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 'l': + loops = atoi(optarg); + 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; + } + } + + make_freq_table(); + + while (((loopcntr <= loops) || (loops == 0)) && !should_stop) { + 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; + dcache_init(); + setlinebuf(stdout); + if (!seed) { + gettimeofday(&t, NULL); + seed = (int)t.tv_sec ^ (int)t.tv_usec; + printf("seed = %ld\n", seed); + } +#ifndef NO_XFS + if (!no_xfs) { + memset(&geom, 0, sizeof(geom)); + 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); + memset(&err_inj, 0, sizeof(err_inj)); + 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 { + setpgid(0, 0); + action.sa_handler = sg_handler; + sigemptyset(&action.sa_mask); + action.sa_flags = 0; + if (sigaction(SIGTERM, &action, 0)) { + perror("sigaction failed"); + exit(1); + } + + for (i = 0; i < nproc; i++) { + if (fork() == 0) { + + action.sa_handler = SIG_DFL; + sigemptyset(&action.sa_mask); + if (sigaction(SIGTERM, &action, 0)) + return 1; +#ifdef HAVE_SYS_PRCTL_H + prctl(PR_SET_PDEATHSIG, SIGKILL); + if (getppid() == 1) /* parent died already? */ + return 0; +#endif + procid = i; + doproc(); + return 0; + } + } + while (wait(&stat) > 0 && !should_stop) { + continue; + } + if (should_stop) { + action.sa_flags = SA_RESTART; + sigaction(SIGTERM, &action, 0); + kill(-getpid(), SIGTERM); + while (wait(&stat) > 0) + continue; + } + } +#ifndef NO_XFS + if (errtag != 0) { + memset(&err_inj, 0, sizeof(err_inj)); + 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 + if (cleanup == 0) { + sprintf(cmd, "rm -rf %s/*", dirname); + system(cmd); + for (i = 0; i < FT_nft; i++) { + flist[i].nslots = 0; + flist[i].nfiles = 0; + free(flist[i].fents); + flist[i].fents = NULL; + } + } + loopcntr++; + } + 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(); + + } +#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(); + +#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; + +} + +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 [-c][-d dir][-e errtg][-f op_name=freq][-l loops][-n nops]\n", + myprog); + printf(" [-p nproc][-r len][-s seed][-v][-w][-z][-S]\n"); + printf("where\n"); + printf + (" -c specifies not to remove files(cleanup) after execution\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 + (" -l loops specifies the no. of times the testrun should loop.\n"); + printf(" *use 0 for infinite (default 1)\n"); + 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 xfs_flock64 fl; + __s64 lr; + __s64 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 = ((__s64) random() << 32) + random(); + off = lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE); + off %= maxfsize; + memset(&fl, 0, sizeof(fl)); + 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, (long long)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; + memset(&cursor, 0x00, 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); + memset(&cursor, 0x00, 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) +{ + __s32 count; + int fd; + __u64 last; + __s32 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; + + memset(&bsr, 0, sizeof(bsr)); + 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, (int)nent, (long long)total); + close(fd); +} + +void bulkstat1_f(int opno, long r) +{ + int e; + pathname_t f; + int fd; + int good; + __u64 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); + + memset(&bsr, 0, sizeof(bsr)); + 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", + (long long)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; + memset(&a, 0, sizeof(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_extsize; + + } +#endif + add_to_flist(type, id, parid); + 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 = NULL; + 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); + + 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 (!setdirect(fd)) { + close(fd); + 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; + } + + memset(&diob, 0, sizeof(diob)); + 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; + if ((e = posix_memalign((void **)&buf, diob.d_mem, len)) != 0) { + fprintf(stderr, "posix_memalign: %s\n", strerror(e)); + exit(1); + } + if (buf == NULL) { + fprintf(stderr, "posix_memalign: buf is NULL\n"); + exit(1); + } + e = read(fd, buf, len) < 0 ? errno : 0; + free(buf); + if (v) + printf("%d/%d: dread %s [%lld,%ld] %d\n", + procid, opno, f.path, (long long int)off, (long)len, e); + free_pathname(&f); + close(fd); +} + +void dwrite_f(int opno, long r) +{ + __int64_t align; + char *buf = NULL; + 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)) { + close(fd); + free_pathname(&f); + 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; + } + memset(&diob, 0, sizeof(diob)); + 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; + if ((e = posix_memalign((void **)&buf, diob.d_mem, len)) != 0) { + fprintf(stderr, "posix_memalign: %s\n", strerror(e)); + exit(1); + } + if (buf == NULL) { + fprintf(stderr, "posix_memalign: buf is NULL\n"); + exit(1); + } + 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,%ld] %d\n", + procid, opno, f.path, (long long)off, (long int)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 xfs_flock64 fl; + __s64 lr; + __s64 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 = ((__s64) random() << 32) + random(); + off = lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE); + off %= maxfsize; + memset(&fl, 0, sizeof(fl)); + 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, (long long)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,%ld] %d\n", + procid, opno, f.path, (long long)off, (long int)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 xfs_flock64 fl; + __s64 lr; + __s64 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 = ((__s64) random() << 32) + random(); + off = lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE); + off %= maxfsize; + memset(&fl, 0, sizeof(fl)); + fl.l_whence = SEEK_SET; + fl.l_start = off; + fl.l_len = (__s64) (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, (long long)off, + (long long)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 = 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, + (long long)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 xfs_flock64 fl; + __s64 lr; + __s64 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 = ((__s64) random() << 32) + random(); + off = lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE); + off %= maxfsize; + memset(&fl, 0, sizeof(fl)); + fl.l_whence = SEEK_SET; + fl.l_start = off; + fl.l_len = (__s64) (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, (long long)off, + (long long)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,%ld] %d\n", + procid, opno, f.path, (long long)off, (long int)len, e); + free_pathname(&f); + close(fd); +}