--- /dev/null
+/*
+ * Copyright (c) 2000-2002 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms 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. See the
+ * GNU General Public License for more details.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <linux/fs.h>
+#include <xfs/xfs.h>
+
+#ifdef HAVE_ATTR_XATTR_H
+#include <attr/xattr.h>
+#endif
+#ifdef HAVE_ATTR_ATTRIBUTES_H
+#include <attr/attributes.h>
+#endif
+#ifdef HAVE_LINUX_FIEMAP_H
+#include <linux/fiemap.h>
+#endif
+#ifndef HAVE_ATTR_LIST
+#define attr_list(path, buf, size, flags, cursor) (errno = -ENOSYS, -1)
+#endif
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+#ifdef AIO
+#include <libaio.h>
+io_context_t io_ctx;
+#endif
+
+#ifndef FS_IOC_GETFLAGS
+#define FS_IOC_GETFLAGS _IOR('f', 1, long)
+#endif
+#ifndef FS_IOC_SETFLAGS
+#define FS_IOC_SETFLAGS _IOW('f', 2, long)
+#endif
+
+#include <math.h>
+#define XFS_ERRTAG_MAX 17
+#define XFS_IDMODULO_MAX 31 /* user/group IDs (1 << x) */
+#define XFS_PROJIDMODULO_MAX 16 /* project IDs (1 << x) */
+#ifndef IOV_MAX
+#define IOV_MAX 1024
+#endif
+
+#define FILELEN_MAX (32*4096)
+
+typedef enum {
+ OP_AFSYNC,
+ OP_ALLOCSP,
+ OP_AREAD,
+ OP_ATTR_REMOVE,
+ OP_ATTR_SET,
+ OP_AWRITE,
+ OP_BULKSTAT,
+ OP_BULKSTAT1,
+ OP_CHOWN,
+ OP_CREAT,
+ OP_DREAD,
+ OP_DWRITE,
+ OP_FALLOCATE,
+ OP_FDATASYNC,
+ OP_FIEMAP,
+ OP_FREESP,
+ OP_FSYNC,
+ OP_GETATTR,
+ OP_GETDENTS,
+ OP_LINK,
+ OP_MKDIR,
+ OP_MKNOD,
+ OP_MREAD,
+ OP_MWRITE,
+ OP_PUNCH,
+ OP_ZERO,
+ OP_COLLAPSE,
+ OP_INSERT,
+ OP_READ,
+ OP_READLINK,
+ OP_READV,
+ OP_RENAME,
+ OP_RESVSP,
+ OP_RMDIR,
+ OP_SETATTR,
+ OP_SETXATTR,
+ OP_STAT,
+ OP_SYMLINK,
+ OP_SYNC,
+ OP_TRUNCATE,
+ OP_UNLINK,
+ OP_UNRESVSP,
+ OP_WRITE,
+ OP_WRITEV,
+ 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;
+} 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;
+
+struct print_flags {
+ unsigned long mask;
+ const char *name;
+};
+
+struct print_string {
+ char *buffer;
+ int len;
+ int max;
+};
+
+#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 afsync_f(int, long);
+void allocsp_f(int, long);
+void aread_f(int, long);
+void attr_remove_f(int, long);
+void attr_set_f(int, long);
+void awrite_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 fallocate_f(int, long);
+void fdatasync_f(int, long);
+void fiemap_f(int, long);
+void freesp_f(int, long);
+void fsync_f(int, long);
+void getattr_f(int, long);
+void getdents_f(int, long);
+void link_f(int, long);
+void mkdir_f(int, long);
+void mknod_f(int, long);
+void mread_f(int, long);
+void mwrite_f(int, long);
+void punch_f(int, long);
+void zero_f(int, long);
+void collapse_f(int, long);
+void insert_f(int, long);
+void read_f(int, long);
+void readlink_f(int, long);
+void readv_f(int, long);
+void rename_f(int, long);
+void resvsp_f(int, long);
+void rmdir_f(int, long);
+void setattr_f(int, long);
+void setxattr_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);
+void writev_f(int, long);
+
+opdesc_t ops[] = {
+ /* { OP_ENUM, "name", function, freq, iswrite }, */
+ { OP_AFSYNC, "afsync", afsync_f, 0, 1 },
+ { OP_ALLOCSP, "allocsp", allocsp_f, 1, 1 },
+ { OP_AREAD, "aread", aread_f, 1, 0 },
+ { OP_ATTR_REMOVE, "attr_remove", attr_remove_f, /* 1 */ 0, 1 },
+ { OP_ATTR_SET, "attr_set", attr_set_f, /* 2 */ 0, 1 },
+ { OP_AWRITE, "awrite", awrite_f, 1, 1 },
+ { OP_BULKSTAT, "bulkstat", bulkstat_f, 1, 0 },
+ { OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0 },
+ { 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_FALLOCATE, "fallocate", fallocate_f, 1, 1 },
+ { OP_FDATASYNC, "fdatasync", fdatasync_f, 1, 1 },
+ { OP_FIEMAP, "fiemap", fiemap_f, 1, 1 },
+ { OP_FREESP, "freesp", freesp_f, 1, 1 },
+ { OP_FSYNC, "fsync", fsync_f, 1, 1 },
+ { OP_GETATTR, "getattr", getattr_f, 1, 0 },
+ { 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_MREAD, "mread", mread_f, 2, 0 },
+ { OP_MWRITE, "mwrite", mwrite_f, 2, 1 },
+ { OP_PUNCH, "punch", punch_f, 1, 1 },
+ { OP_ZERO, "zero", zero_f, 1, 1 },
+ { OP_COLLAPSE, "collapse", collapse_f, 1, 1 },
+ { OP_INSERT, "insert", insert_f, 1, 1 },
+ { OP_READ, "read", read_f, 1, 0 },
+ { OP_READLINK, "readlink", readlink_f, 1, 0 },
+ { OP_READV, "readv", readv_f, 1, 0 },
+ { OP_RENAME, "rename", rename_f, 2, 1 },
+ { OP_RESVSP, "resvsp", resvsp_f, 1, 1 },
+ { OP_RMDIR, "rmdir", rmdir_f, 1, 1 },
+ { OP_SETATTR, "setattr", setattr_f, 0, 1 },
+ { OP_SETXATTR, "setxattr", setxattr_f, 1, 1 },
+ { OP_STAT, "stat", stat_f, 1, 0 },
+ { OP_SYMLINK, "symlink", symlink_f, 2, 1 },
+ { OP_SYNC, "sync", sync_f, 1, 1 },
+ { OP_TRUNCATE, "truncate", truncate_f, 2, 1 },
+ { OP_UNLINK, "unlink", unlink_f, 1, 1 },
+ { OP_UNRESVSP, "unresvsp", unresvsp_f, 1, 1 },
+ { OP_WRITE, "write", write_f, 4, 1 },
+ { OP_WRITEV, "writev", writev_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;
+xfs_fsop_geom_t geom;
+char *homedir;
+int *ilist;
+int ilistlen;
+off64_t maxfsize;
+char *myprog;
+int namerand;
+int nameseq;
+int nops;
+int nproc = 1;
+int operations = 1;
+unsigned int idmodulo = XFS_IDMODULO_MAX;
+unsigned int attr_mask = ~0;
+int procid;
+int rtpct;
+unsigned long seed = 0;
+ino_t top_ino;
+int cleanup = 0;
+int verbose = 0;
+int verifiable_log = 0;
+sig_atomic_t should_stop = 0;
+sigjmp_buf *sigbus_jmp = NULL;
+char *execute_cmd = NULL;
+int execute_freq = 1;
+struct print_string flag_str = {0};
+
+void add_to_flist(int, int, int);
+void append_pathname(pathname_t *, char *);
+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);
+void check_cwd(void);
+void cleanup_flist(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);
+int 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)
+{
+ switch (signum) {
+ case SIGTERM:
+ should_stop = 1;
+ break;
+ case SIGBUS:
+ /*
+ * Only handle SIGBUS when mmap write to a hole and no
+ * block can be allocated due to ENOSPC, abort otherwise.
+ */
+ if (sigbus_jmp) {
+ siglongjmp(*sigbus_jmp, -1);
+ } else {
+ printf("Unknown SIGBUS is caught, Abort!\n");
+ abort();
+ }
+ /* should not reach here */
+ break;
+ default:
+ break;
+ }
+}
+
+int main(int argc, char **argv)
+{
+ char buf[10];
+ int c;
+ char *dirname = NULL;
+ char *logname = NULL;
+ char rpath[PATH_MAX];
+ int fd;
+ int i;
+ int j;
+ char *p;
+ int stat;
+ struct timeval t;
+ ptrdiff_t srval;
+ int nousage = 0;
+ xfs_error_injection_t err_inj;
+ struct sigaction action;
+ int loops = 1;
+ const char *allopts = "cd:e:f:i:l:m:M:n:o:p:rs:S:vVwx:X:zH";
+
+ errrange = errtag = 0;
+ umask(0);
+ nops = sizeof(ops) / sizeof(ops[0]);
+ ops_end = &ops[nops];
+ myprog = argv[0];
+ while ((c = getopt(argc, argv, allopts)) != -1) {
+ switch (c) {
+ case 'c':
+ 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 'm':
+ idmodulo = strtoul(optarg, NULL, 0);
+ if (idmodulo > XFS_IDMODULO_MAX) {
+ fprintf(stderr,
+ "chown modulo %d too big (max %d)\n",
+ idmodulo, XFS_IDMODULO_MAX);
+ exit(1);
+ }
+ break;
+ case 'l':
+ loops = atoi(optarg);
+ break;
+ case 'n':
+ operations = atoi(optarg);
+ break;
+ case 'o':
+ logname = 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 'x':
+ execute_cmd = optarg;
+ break;
+ case 'z':
+ zero_freq();
+ break;
+ case 'M':
+ attr_mask = strtoul(optarg, NULL, 0);
+ break;
+ case 'S':
+ i = 0;
+ if (optarg[0] == 'c')
+ i = 1;
+ show_ops(i, NULL);
+ printf("\n");
+ nousage=1;
+ break;
+ case 'V':
+ verifiable_log = 1;
+ break;
+
+ case 'X':
+ execute_freq = strtoul(optarg, NULL, 0);
+ break;
+ case '?':
+ fprintf(stderr, "%s - invalid parameters\n",
+ myprog);
+ /* fall through */
+ case 'H':
+ usage();
+ exit(1);
+ }
+ }
+
+ if (!dirname) {
+ /* no directory specified */
+ if (!nousage) usage();
+ exit(1);
+ }
+
+ (void)mkdir(dirname, 0777);
+ if (logname && logname[0] != '/') {
+ if (getcwd(rpath, sizeof(rpath)) < 0){
+ perror("getcwd failed");
+ exit(1);
+ }
+ } else {
+ rpath[0] = '\0';
+ }
+ if (chdir(dirname) < 0) {
+ perror(dirname);
+ exit(1);
+ }
+ if (logname) {
+ char path[PATH_MAX];
+ snprintf(path, sizeof(path), "%s/%s", rpath, logname);
+ if (freopen(path, "a", stdout) == NULL) {
+ perror("freopen logfile failed");
+ exit(1);
+ }
+ }
+ sprintf(buf, "fss%x", (unsigned int)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);
+ }
+ i = xfsctl(buf, 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 = xfsctl(buf, fd, XFS_IOC_ERROR_INJECTION, &err_inj);
+ if (srval < -1) {
+ perror("fsstress - XFS_SYSSGI error injection call");
+ close(fd);
+ unlink(buf);
+ exit(1);
+ }
+ } else
+ close(fd);
+
+ 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) {
+ sigemptyset(&action.sa_mask);
+ action.sa_handler = SIG_DFL;
+ if (sigaction(SIGTERM, &action, 0))
+ return 1;
+ action.sa_handler = sg_handler;
+ if (sigaction(SIGBUS, &action, 0))
+ return 1;
+#ifdef HAVE_SYS_PRCTL_H
+ prctl(PR_SET_PDEATHSIG, SIGKILL);
+ if (getppid() == 1) /* parent died already? */
+ return 0;
+#endif
+ if (logname) {
+ char path[PATH_MAX];
+ snprintf(path, sizeof(path), "%s/%s.%d",
+ rpath, logname, i);
+ if (freopen(path, "a", stdout) == NULL) {
+ perror("freopen logfile failed");
+ exit(1);
+ }
+ }
+ procid = i;
+#ifdef AIO
+ if (io_setup(128, &io_ctx) != 0) {
+ fprintf(stderr, "io_setup failed");
+ exit(1);
+ }
+#endif
+ for (i = 0; !loops || (i < loops); i++)
+ doproc();
+#ifdef AIO
+ if(io_destroy(io_ctx) != 0) {
+ fprintf(stderr, "io_destroy failed");
+ return 1;
+ }
+#endif
+ return 0;
+ }
+ }
+ while (wait(&stat) > 0 && !should_stop) {
+ continue;
+ }
+ action.sa_flags = SA_RESTART;
+ sigaction(SIGTERM, &action, 0);
+ kill(-getpid(), SIGTERM);
+ while (wait(&stat) > 0)
+ continue;
+
+ if (errtag != 0) {
+ err_inj.errtag = 0;
+ err_inj.fd = fd;
+ srval = xfsctl(buf, fd, XFS_IOC_ERROR_CLEARALL, &err_inj);
+ if (srval != 0) {
+ fprintf(stderr, "Bad ej clear on %s fd=%d (%d).\n",
+ buf, fd, errno);
+ perror("xfsctl(XFS_IOC_ERROR_CLEARALL)");
+ close(fd);
+ exit(1);
+ }
+ close(fd);
+ }
+
+ unlink(buf);
+ return 0;
+}
+
+int
+add_string(struct print_string *str, const char *add)
+{
+ int len = strlen(add);
+
+ if (len <= 0)
+ return 0;
+
+ if (len > (str->max - 1) - str->len) {
+ str->len = str->max - 1;
+ return 0;
+ }
+
+ memcpy(str->buffer + str->len, add, len);
+ str->len += len;
+ str->buffer[str->len] = '\0';
+
+ return len;
+}
+
+char *
+translate_flags(int flags, const char *delim,
+ const struct print_flags *flag_array)
+{
+ int i, mask, first = 1;
+ const char *add;
+
+ if (!flag_str.buffer) {
+ flag_str.buffer = malloc(4096);
+ flag_str.max = 4096;
+ flag_str.len = 0;
+ }
+ if (!flag_str.buffer)
+ return NULL;
+ flag_str.len = 0;
+ flag_str.buffer[0] = '\0';
+
+ for (i = 0; flag_array[i].name && flags; i++) {
+ mask = flag_array[i].mask;
+ if ((flags & mask) != mask)
+ continue;
+
+ add = flag_array[i].name;
+ flags &= ~mask;
+ if (!first && delim)
+ add_string(&flag_str, delim);
+ else
+ first = 0;
+ add_string(&flag_str, add);
+ }
+
+ /* Check whether there are any leftover flags. */
+ if (flags) {
+ int ret;
+ char number[11];
+
+ if (!first && delim)
+ add_string(&flag_str, delim);
+
+ ret = snprintf(number, 11, "0x%x", flags) > 0;
+ if (ret > 0 && ret <= 11)
+ add_string(&flag_str, number);
+ }
+
+ return flag_str.buffer;
+}
+
+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
+ /* attempting to append to a dir a zero length path */
+ 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;
+}
+
+int
+attr_list_path(pathname_t *name,
+ char *buffer,
+ const int buffersize,
+ int flags,
+ attrlist_cursor_t *cursor)
+{
+ char buf[NAME_MAX + 1];
+ pathname_t newname;
+ int rval;
+
+ if (flags != ATTR_DONTFOLLOW) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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;
+}
+
+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
+}
+
+/*
+ * go thru flist and release all entries
+ *
+ * NOTE: this function shouldn't be called until the end of a process
+ */
+void
+cleanup_flist(void)
+{
+ flist_t *flp;
+ int i;
+
+ for (i = 0, flp = flist; i < FT_nft; i++, flp++) {
+ flp->nslots = 0;
+ flp->nfiles = 0;
+ free(flp->fents);
+ flp->fents = NULL;
+ }
+}
+
+int
+creat_path(pathname_t *name, mode_t mode)
+{
+ char buf[NAME_MAX + 1];
+ 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;
+}
+
+/*
+ * Delete the item from the list by
+ * moving last entry over the deleted one;
+ * unless deleted entry is the last one.
+ * Input: which file list array and which slot in array
+ */
+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];
+ char cmd[64];
+ int opno;
+ int rval;
+ opdesc_t *p;
+ int dividend;
+
+ dividend = (operations + execute_freq) / (execute_freq + 1);
+ 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, 0);
+ seed += procid;
+ srandom(seed);
+ if (namerand)
+ namerand = random();
+ for (opno = 0; opno < operations; opno++) {
+ if (execute_cmd && opno && opno % dividend == 0) {
+ if (verbose)
+ printf("%d: execute command %s\n", opno,
+ execute_cmd);
+ rval = system(execute_cmd);
+ if (rval)
+ fprintf(stderr, "execute command failed with "
+ "%d\n", rval);
+ }
+ p = &ops[freq_table[random() % freq_table_size]];
+ 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");
+ goto errout;
+ }
+ }
+ }
+errout:
+ chdir("..");
+ if (cleanup) {
+ sprintf(cmd, "rm -rf %s", buf);
+ system(cmd);
+ cleanup_flist();
+ }
+}
+
+/*
+ * build up a pathname going thru the file entry and all
+ * its parent entries
+ * Return 0 on error, 1 on success;
+ */
+int
+fent_to_name(pathname_t *name, flist_t *flp, fent_t *fep)
+{
+ char buf[NAME_MAX + 1];
+ int i;
+ fent_t *pfep;
+ int e;
+
+ if (fep == NULL)
+ return 0;
+
+ /* build up parent directory name */
+ if (fep->parent != -1) {
+ pfep = dirid_to_fent(fep->parent);
+#ifdef DEBUG
+ if (pfep == NULL) {
+ fprintf(stderr, "%d: fent-id = %d: can't find parent id: %d\n",
+ procid, fep->id, fep->parent);
+ }
+#endif
+ if (pfep == NULL)
+ return 0;
+ e = fent_to_name(name, &flist[FT_DIR], pfep);
+ if (!e)
+ return 0;
+ append_pathname(name, "/");
+ }
+
+ i = sprintf(buf, "%c%x", flp->tag, fep->id);
+ namerandpad(fep->id, buf, i);
+ append_pathname(name, buf);
+ return 1;
+}
+
+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;
+ }
+}
+
+/*
+ * Generate a filename of type ft.
+ * If we have a fep which should be a directory then use it
+ * as the parent path for this new filename i.e. prepend with it.
+ */
+int
+generate_fname(fent_t *fep, int ft, pathname_t *name, int *idp, int *v)
+{
+ char buf[NAME_MAX + 1];
+ flist_t *flp;
+ int id;
+ int j;
+ int len;
+ int e;
+
+ /* create name */
+ flp = &flist[ft];
+ len = sprintf(buf, "%c%x", flp->tag, id = nameseq++);
+ namerandpad(id, buf, len);
+
+ /* prepend fep parent dir-name to it */
+ if (fep) {
+ e = fent_to_name(name, &flist[FT_DIR], fep);
+ if (!e)
+ return 0;
+ 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;
+}
+
+/*
+ * Get file
+ * Input: "which" to choose the file-types eg. non-directory
+ * Input: "r" to choose which file
+ * Output: file-list, file-entry, name for the chosen file.
+ * Output: verbose if chosen file is on the ilist.
+ */
+int
+get_fname(int which, long r, pathname_t *name, flist_t **flpp, fent_t **fepp,
+ int *v)
+{
+ int totalsum = 0; /* total number of matching files */
+ int partialsum = 0; /* partial sum of matching files */
+ fent_t *fep;
+ flist_t *flp;
+ int i;
+ int j;
+ int x;
+ int e = 1; /* success */
+
+ /*
+ * go thru flist and add up number of files for each
+ * category that matches with <which>.
+ */
+ for (i = 0, flp = flist; i < FT_nft; i++, flp++) {
+ if (which & (1 << i))
+ totalsum += flp->nfiles;
+ }
+ if (totalsum == 0) {
+ if (flpp)
+ *flpp = NULL;
+ if (fepp)
+ *fepp = NULL;
+ *v = verbose;
+ return 0;
+ }
+
+ /*
+ * Now we have possible matches between 0..totalsum-1.
+ * And we use r to help us choose which one we want,
+ * which when bounded by totalsum becomes x.
+ */
+ x = (int)(r % totalsum);
+ for (i = 0, flp = flist; i < FT_nft; i++, flp++) {
+ if (which & (1 << i)) {
+ if (x < partialsum + flp->nfiles) {
+
+ /* found the matching file entry */
+ fep = &flp->fents[x - partialsum];
+
+ /* fill-in what we were asked for */
+ if (name) {
+ e = fent_to_name(name, flp, fep);
+#ifdef DEBUG
+ if (!e) {
+ fprintf(stderr, "%d: failed to get path for entry:"
+ " id=%d,parent=%d\n",
+ procid, fep->id, fep->parent);
+ }
+#endif
+ }
+ if (flpp)
+ *flpp = flp;
+ if (fepp)
+ *fepp = fep;
+
+ /* turn on verbose if its an ilisted file */
+ *v = verbose;
+ for (j = 0; !*v && j < ilistlen; j++) {
+ if (ilist[j] == fep->id) {
+ *v = 1;
+ break;
+ }
+ }
+ return e;
+ }
+ partialsum += flp->nfiles;
+ }
+ }
+#ifdef DEBUG
+ fprintf(stderr, "fsstress: get_fname failure\n");
+ abort();
+#endif
+ return 0;
+}
+
+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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ char buf2[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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, NAME_MAX };
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ char buf2[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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 if (flag == 0) {
+ /* Table view style */
+ 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");
+ }
+ }
+ } else {
+ /* Command line style */
+ if (lead_str != NULL)
+ printf("%s", lead_str);
+ printf ("-z -s %ld -m %d -n %d -p %d \\\n", seed, idmodulo,
+ operations, nproc);
+ for (p = ops; p < ops_end; p++)
+ if (p->freq > 0)
+ printf("-f %s=%d \\\n",p->name, p->freq);
+ }
+}
+
+int
+stat64_path(pathname_t *name, struct stat64 *sbuf)
+{
+ char buf[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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[NAME_MAX + 1];
+ 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][-x cmd][-z][-S][-X ncmd]\n");
+ printf("where\n");
+ printf(" -c clean up the test directory after each run\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(" -i filenum get verbose output for this nth file object\n");
+ printf(" -l loops specifies the no. of times the testrun should loop.\n");
+ printf(" *use 0 for infinite (default 1)\n");
+ printf(" -m modulo uid/gid modulo for chown/chgrp (default 32)\n");
+ printf(" -n nops specifies the no. of operations per process (default 1)\n");
+ printf(" -o logfile specifies logfile name\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(" -x cmd execute command in the middle of operations\n");
+ printf(" -z zeros frequencies of all operations\n");
+ printf(" -S [c,t] prints the list of operations (omitting zero frequency) in command line or table style\n");
+ printf(" -V specifies verifiable logging mode (omitting inode numbers)\n");
+ printf(" -X ncmd number of calls to the -x command (default 1)\n");
+ printf(" -H prints usage and exits\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;
+}
+
+void inode_info(char *str, size_t sz, struct stat64 *s, int verbose)
+{
+ if (verbose)
+ snprintf(str, sz, "[%ld %ld %d %d %lld %lld]",
+ verifiable_log ? -1: (long)s->st_ino,
+ (long)s->st_nlink, s->st_uid, s->st_gid,
+ (long long) s->st_blocks, (long long) s->st_size);
+}
+
+void
+afsync_f(int opno, long r)
+{
+#ifdef AIO
+ int e;
+ pathname_t f;
+ int fd;
+ int v;
+ struct iocb iocb;
+ struct iocb *iocbs[] = { &iocb };
+ struct io_event event;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: afsync - no filename\n", procid, opno);
+ free_pathname(&f);
+ return;
+ }
+ fd = open_path(&f, O_WRONLY | O_DIRECT);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: afsync - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+
+ io_prep_fsync(&iocb, fd);
+ if ((e = io_submit(io_ctx, 1, iocbs)) != 1) {
+ if (v)
+ printf("%d/%d: afsync - io_submit %s %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
+ if (v)
+ printf("%d/%d: afsync - io_getevents failed %d\n",
+ procid, opno, e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ e = event.res2;
+ if (v)
+ printf("%d/%d: afsync %s %d\n", procid, opno, f.path, e);
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
+allocsp_f(int opno, long r)
+{
+ int e;
+ pathname_t f;
+ int fd;
+ struct xfs_flock64 fl;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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 = xfsctl(f.path, fd, XFS_IOC_ALLOCSP64, &fl) < 0 ? errno : 0;
+ if (v) {
+ printf("%d/%d: xfsctl(XFS_IOC_ALLOCSP64) %s%s %lld 0 %d\n",
+ procid, opno, f.path, st, (long long)off, e);
+ }
+ free_pathname(&f);
+ close(fd);
+}
+
+#ifdef AIO
+void
+do_aio_rw(int opno, long r, int flags)
+{
+ __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;
+ char st[1024];
+ char *dio_env;
+ struct iocb iocb;
+ struct io_event event;
+ struct iocb *iocbs[] = { &iocb };
+ int iswrite = (flags & (O_WRONLY | O_RDWR)) ? 1 : 0;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: do_aio_rw - no filename\n", procid, opno);
+ free_pathname(&f);
+ return;
+ }
+ fd = open_path(&f, flags|O_DIRECT);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (!iswrite && stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - %s%s zero size\n", procid, opno,
+ f.path, st);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
+ if (v)
+ printf(
+ "%d/%d: do_aio_rw - xfsctl(XFS_IOC_DIOINFO) %s%s return %d,"
+ " fallback to stat()\n",
+ procid, opno, f.path, st, errno);
+ diob.d_mem = diob.d_miniosz = stb.st_blksize;
+ diob.d_maxiosz = INT_MAX & ~(diob.d_miniosz - 1);
+ }
+ dio_env = getenv("XFS_DIO_MIN");
+ if (dio_env)
+ diob.d_mem = diob.d_miniosz = atoi(dio_env);
+ align = (__int64_t)diob.d_miniosz;
+ lr = ((__int64_t)random() << 32) + random();
+ len = (random() % FILELEN_MAX) + 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);
+
+ if (iswrite) {
+ off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
+ off -= (off % align);
+ off %= maxfsize;
+ memset(buf, nameseq & 0xff, len);
+ io_prep_pwrite(&iocb, fd, buf, len, off);
+ } else {
+ off = (off64_t)(lr % stb.st_size);
+ off -= (off % align);
+ io_prep_pread(&iocb, fd, buf, len, off);
+ }
+ if ((e = io_submit(io_ctx, 1, iocbs)) != 1) {
+ if (v)
+ printf("%d/%d: %s - io_submit failed %d\n",
+ procid, opno, iswrite ? "awrite" : "aread", e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
+ if (v)
+ printf("%d/%d: %s - io_getevents failed %d\n",
+ procid, opno, iswrite ? "awrite" : "aread", e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ e = event.res != len ? event.res2 : 0;
+ free(buf);
+ if (v)
+ printf("%d/%d: %s %s%s [%lld,%d] %d\n",
+ procid, opno, iswrite ? "awrite" : "aread",
+ f.path, st, (long long)off, (int)len, e);
+ free_pathname(&f);
+ close(fd);
+}
+#endif
+
+void
+aread_f(int opno, long r)
+{
+#ifdef AIO
+ do_aio_rw(opno, r, O_RDONLY);
+#endif
+}
+
+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 {
+ bzero(buf, sizeof(buf));
+ 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 {
+ bzero(buf, sizeof(buf));
+ 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
+awrite_f(int opno, long r)
+{
+#ifdef AIO
+ do_aio_rw(opno, r, O_WRONLY);
+#endif
+}
+
+void
+bulkstat_f(int opno, long r)
+{
+ int count;
+ int fd;
+ __u64 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 (xfsctl(".", 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, (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);
+
+ bsr.lastip=&ino;
+ bsr.icount=1;
+ bsr.ubuffer=&t;
+ bsr.ocount=NULL;
+ e = xfsctl(".", 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",
+ verifiable_log ? -1LL : (long long)ino, e);
+ close(fd);
+}
+
+void
+chown_f(int opno, long r)
+{
+ int e;
+ pathname_t f;
+ int nbits;
+ uid_t u;
+ gid_t g;
+ int v;
+
+ init_pathname(&f);
+ if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
+ append_pathname(&f, ".");
+ u = (uid_t)random();
+ g = (gid_t)random();
+ nbits = (int)(random() % idmodulo);
+ u &= (1 << nbits) - 1;
+ g &= (1 << nbits) - 1;
+ e = lchown_path(&f, u, g) < 0 ? errno : 0;
+ check_cwd();
+ if (v)
+ printf("%d/%d: chown %s %d/%d %d\n", procid, opno, f.path, (int)u, (int)g, e);
+ free_pathname(&f);
+}
+
+void
+setxattr_f(int opno, long r)
+{
+#ifdef XFS_XFLAG_EXTSIZE
+ struct fsxattr fsx;
+ int fd;
+ int e;
+ pathname_t f;
+ int nbits;
+ uint p;
+ int v;
+
+ init_pathname(&f);
+ if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
+ append_pathname(&f, ".");
+ fd = open_path(&f, O_RDWR);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+
+ /* project ID */
+ p = (uint)random();
+ e = MIN(idmodulo, XFS_PROJIDMODULO_MAX);
+ nbits = (int)(random() % e);
+ p &= (1 << nbits) - 1;
+
+ if ((e = xfsctl(f.path, fd, XFS_IOC_FSGETXATTR, &fsx)) == 0) {
+ fsx.fsx_projid = p;
+ e = xfsctl(f.path, fd, XFS_IOC_FSSETXATTR, &fsx);
+ }
+ if (v)
+ printf("%d/%d: setxattr %s %u %d\n", procid, opno, f.path, p, e);
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
+creat_f(int opno, long r)
+{
+ struct fsxattr a;
+ int e;
+ int e1;
+ int extsize;
+ pathname_t f;
+ int fd;
+ fent_t *fep;
+ int id;
+ int parid;
+ int type;
+ int v;
+ int v1;
+
+ if (!get_fname(FT_DIRm, r, NULL, NULL, &fep, &v1))
+ parid = -1;
+ else
+ parid = fep->id;
+ init_pathname(&f);
+ e1 = (random() % 100);
+ type = rtpct ? ((e1 > rtpct) ? FT_REG : FT_RTF) : FT_REG;
+#ifdef NOTYET
+ if (type == FT_RTF) /* rt always gets an extsize */
+ extsize = (random() % 10) + 1;
+ else if (e1 < 10) /* one-in-ten get an extsize */
+ extsize = random() % 1024;
+ else
+#endif
+ extsize = 0;
+ e = generate_fname(fep, type, &f, &id, &v);
+ v |= v1;
+ if (!e) {
+ if (v) {
+ (void)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();
+ if (fd >= 0) {
+ if (extsize &&
+ xfsctl(f.path, fd, XFS_IOC_FSGETXATTR, &a) >= 0) {
+ if (type == FT_RTF) {
+ a.fsx_xflags |= XFS_XFLAG_REALTIME;
+ a.fsx_extsize = extsize *
+ geom.rtextsize * geom.blocksize;
+#ifdef NOTYET
+ } else if (extsize) {
+ a.fsx_xflags |= XFS_XFLAG_EXTSIZE;
+ a.fsx_extsize = extsize * geom.blocksize;
+#endif
+ }
+ if (xfsctl(f.path, fd, XFS_IOC_FSSETXATTR, &a) < 0)
+ e1 = errno;
+ }
+ add_to_flist(type, id, parid);
+ close(fd);
+ }
+ if (v) {
+ printf("%d/%d: creat %s x:%d %d %d\n", procid, opno, f.path,
+ extsize ? a.fsx_extsize : 0, e, e1);
+ printf("%d/%d: creat add id=%d,parent=%d\n", procid, opno, id, parid);
+ }
+ free_pathname(&f);
+}
+
+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;
+ char st[1024];
+ char *dio_env;
+
+ 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|O_DIRECT);
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: dread - %s%s zero size\n", procid, opno,
+ f.path, st);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
+ if (v)
+ printf(
+ "%d/%d: dread - xfsctl(XFS_IOC_DIOINFO) %s%s return %d,"
+ " fallback to stat()\n",
+ procid, opno, f.path, st, errno);
+ diob.d_mem = diob.d_miniosz = stb.st_blksize;
+ diob.d_maxiosz = INT_MAX & ~(diob.d_miniosz - 1);
+ }
+
+ dio_env = getenv("XFS_DIO_MIN");
+ if (dio_env)
+ diob.d_mem = diob.d_miniosz = atoi(dio_env);
+
+ 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() % FILELEN_MAX) + 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%s [%lld,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (int)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;
+ char st[1024];
+ char *dio_env;
+
+ 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|O_DIRECT);
+ 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 (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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
+ if (v)
+ printf("%d/%d: dwrite - xfsctl(XFS_IOC_DIOINFO)"
+ " %s%s return %d, fallback to stat()\n",
+ procid, opno, f.path, st, errno);
+ diob.d_mem = diob.d_miniosz = stb.st_blksize;
+ diob.d_maxiosz = INT_MAX & ~(diob.d_miniosz - 1);
+ }
+
+ dio_env = getenv("XFS_DIO_MIN");
+ if (dio_env)
+ diob.d_mem = diob.d_miniosz = atoi(dio_env);
+
+ 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() % FILELEN_MAX) + 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%s [%lld,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (int)len, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+
+#ifdef HAVE_LINUX_FALLOC_H
+struct print_flags falloc_flags [] = {
+ { FALLOC_FL_KEEP_SIZE, "KEEP_SIZE"},
+ { FALLOC_FL_PUNCH_HOLE, "PUNCH_HOLE"},
+ { FALLOC_FL_NO_HIDE_STALE, "NO_HIDE_STALE"},
+ { FALLOC_FL_COLLAPSE_RANGE, "COLLAPSE_RANGE"},
+ { FALLOC_FL_ZERO_RANGE, "ZERO_RANGE"},
+ { FALLOC_FL_INSERT_RANGE, "INSERT_RANGE"},
+ { -1, NULL}
+};
+
+#define translate_falloc_flags(mode) \
+ ({translate_flags(mode, "|", falloc_flags);})
+#endif
+
+void
+do_fallocate(int opno, long r, int mode)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ int e;
+ pathname_t f;
+ int fd;
+ __int64_t lr;
+ off64_t off;
+ off64_t len;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: do_fallocate - no filename\n", procid, opno);
+ free_pathname(&f);
+ return;
+ }
+ fd = open_path(&f, O_RDWR);
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: do_fallocate - open %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ return;
+ }
+ check_cwd();
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: do_fallocate - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ lr = ((__int64_t)random() << 32) + random();
+ off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
+ off %= maxfsize;
+ len = (off64_t)(random() % (1024 * 1024));
+ /*
+ * Collapse/insert range requires off and len to be block aligned,
+ * make it more likely to be the case.
+ */
+ if ((mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)) &&
+ (opno % 2)) {
+ off = ((off + stb.st_blksize - 1) & ~(stb.st_blksize - 1));
+ len = ((len + stb.st_blksize - 1) & ~(stb.st_blksize - 1));
+ }
+ mode |= FALLOC_FL_KEEP_SIZE & random();
+ e = fallocate(fd, mode, (loff_t)off, (loff_t)len) < 0 ? errno : 0;
+ if (v)
+ printf("%d/%d: fallocate(%s) %s %st %lld %lld %d\n",
+ procid, opno, translate_falloc_flags(mode),
+ f.path, st, (long long)off, (long long)len, e);
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
+fallocate_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ do_fallocate(opno, r, 0);
+#endif
+}
+
+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);
+}
+
+#ifdef HAVE_LINUX_FIEMAP_H
+struct print_flags fiemap_flags[] = {
+ { FIEMAP_FLAG_SYNC, "SYNC"},
+ { FIEMAP_FLAG_XATTR, "XATTR"},
+ { -1, NULL}
+};
+
+#define translate_fiemap_flags(mode) \
+ ({translate_flags(mode, "|", fiemap_flags);})
+#endif
+
+void
+fiemap_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FIEMAP_H
+ int e;
+ pathname_t f;
+ int fd;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+ int blocks_to_map;
+ struct fiemap *fiemap;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: fiemap - 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: fiemap - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: fiemap - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ blocks_to_map = random() & 0xffff;
+ fiemap = (struct fiemap *)malloc(sizeof(struct fiemap) +
+ (blocks_to_map * sizeof(struct fiemap_extent)));
+ if (!fiemap) {
+ if (v)
+ printf("%d/%d: malloc failed \n", procid, opno);
+ 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;
+ fiemap->fm_flags = random() & (FIEMAP_FLAGS_COMPAT | 0x10000);
+ fiemap->fm_extent_count = blocks_to_map;
+ fiemap->fm_mapped_extents = random() & 0xffff;
+ fiemap->fm_start = off;
+ fiemap->fm_length = ((__int64_t)random() << 32) + random();
+
+ e = ioctl(fd, FS_IOC_FIEMAP, (unsigned long)fiemap);
+ if (v)
+ printf("%d/%d: ioctl(FIEMAP) %s%s %lld %lld (%s) %d\n",
+ procid, opno, f.path, st, (long long)fiemap->fm_start,
+ (long long) fiemap->fm_length,
+ translate_fiemap_flags(fiemap->fm_flags), e);
+ free(fiemap);
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
+freesp_f(int opno, long r)
+{
+ int e;
+ pathname_t f;
+ int fd;
+ struct xfs_flock64 fl;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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 = xfsctl(f.path, fd, XFS_IOC_FREESP64, &fl) < 0 ? errno : 0;
+ if (v)
+ printf("%d/%d: xfsctl(XFS_IOC_FREESP64) %s%s %lld 0 %d\n",
+ procid, opno, f.path, st, (long long)off, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+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
+getattr_f(int opno, long r)
+{
+ int fd;
+ int e;
+ pathname_t f;
+ uint fl;
+ int v;
+
+ init_pathname(&f);
+ if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
+ append_pathname(&f, ".");
+ fd = open_path(&f, O_RDWR);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+
+ e = ioctl(fd, FS_IOC_GETFLAGS, &fl);
+ if (v)
+ printf("%d/%d: getattr %s %u %d\n", procid, opno, f.path, fl, 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) {
+ (void)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);
+ printf("%d/%d: link add id=%d,parent=%d\n", procid, opno, id, parid);
+ }
+ 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) {
+ (void)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);
+ printf("%d/%d: mkdir add id=%d,parent=%d\n", procid, opno, id, parid);
+ }
+ 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) {
+ (void)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);
+ printf("%d/%d: mknod add id=%d,parent=%d\n", procid, opno, id, parid);
+ }
+ free_pathname(&f);
+}
+
+#ifdef HAVE_SYS_MMAN_H
+struct print_flags mmap_flags[] = {
+ { MAP_SHARED, "SHARED"},
+ { MAP_PRIVATE, "PRIVATE"},
+ { -1, NULL}
+};
+
+#define translate_mmap_flags(flags) \
+ ({translate_flags(flags, "|", mmap_flags);})
+#endif
+
+void
+do_mmap(int opno, long r, int prot)
+{
+#ifdef HAVE_SYS_MMAN_H
+ char *addr;
+ int e;
+ pathname_t f;
+ int fd;
+ size_t len;
+ __int64_t lr;
+ off64_t off;
+ int flags;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+ sigjmp_buf sigbus_jmpbuf;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: do_mmap - 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: do_mmap - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: do_mmap - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: do_mmap - %s%s zero size\n", procid, opno,
+ f.path, st);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ lr = ((__int64_t)random() << 32) + random();
+ off = (off64_t)(lr % stb.st_size);
+ off &= (off64_t)(~(sysconf(_SC_PAGE_SIZE) - 1));
+ len = (size_t)(random() % MIN(stb.st_size - off, FILELEN_MAX)) + 1;
+
+ flags = (random() % 2) ? MAP_SHARED : MAP_PRIVATE;
+ addr = mmap(NULL, len, prot, flags, fd, off);
+ e = (addr == MAP_FAILED) ? errno : 0;
+ if (e) {
+ if (v)
+ printf("%d/%d: do_mmap - mmap failed %s%s [%lld,%d,%s] %d\n",
+ procid, opno, f.path, st, (long long)off,
+ (int)len, translate_mmap_flags(flags), e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ if (prot & PROT_WRITE) {
+ if ((e = sigsetjmp(sigbus_jmpbuf, 1)) == 0) {
+ sigbus_jmp = &sigbus_jmpbuf;
+ memset(addr, nameseq & 0xff, len);
+ }
+ } else {
+ char *buf;
+ if ((buf = malloc(len)) != NULL) {
+ memcpy(buf, addr, len);
+ free(buf);
+ }
+ }
+ munmap(addr, len);
+ /* set NULL to stop other functions from doing siglongjmp */
+ sigbus_jmp = NULL;
+
+ if (v)
+ printf("%d/%d: %s %s%s [%lld,%d,%s] %s\n",
+ procid, opno, (prot & PROT_WRITE) ? "mwrite" : "mread",
+ f.path, st, (long long)off, (int)len,
+ translate_mmap_flags(flags),
+ (e == 0) ? "0" : "Bus error");
+
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
+mread_f(int opno, long r)
+{
+#ifdef HAVE_SYS_MMAN_H
+ do_mmap(opno, r, PROT_READ);
+#endif
+}
+
+void
+mwrite_f(int opno, long r)
+{
+#ifdef HAVE_SYS_MMAN_H
+ do_mmap(opno, r, PROT_WRITE);
+#endif
+}
+
+void
+punch_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ do_fallocate(opno, r, FALLOC_FL_PUNCH_HOLE);
+#endif
+}
+
+void
+zero_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ do_fallocate(opno, r, FALLOC_FL_ZERO_RANGE);
+#endif
+}
+
+void
+collapse_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ do_fallocate(opno, r, FALLOC_FL_COLLAPSE_RANGE);
+#endif
+}
+
+void
+insert_f(int opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+ do_fallocate(opno, r, FALLOC_FL_INSERT_RANGE);
+#endif
+}
+
+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;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: read - %s%s zero size\n", procid, opno,
+ f.path, st);
+ 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() % FILELEN_MAX) + 1;
+ buf = malloc(len);
+ e = read(fd, buf, len) < 0 ? errno : 0;
+ free(buf);
+ if (v)
+ printf("%d/%d: read %s%s [%lld,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (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
+readv_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;
+ char st[1024];
+ struct iovec *iov = NULL;
+ int iovcnt;
+ size_t iovb;
+ size_t iovl;
+ int i;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: readv - 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: readv - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: readv - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: readv - %s%s zero size\n", procid, opno,
+ f.path, st);
+ 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() % FILELEN_MAX) + 1;
+ buf = malloc(len);
+
+ iovcnt = (random() % MIN(len, IOV_MAX)) + 1;
+ iov = calloc(iovcnt, sizeof(struct iovec));
+ iovl = len / iovcnt;
+ iovb = 0;
+ for (i=0; i<iovcnt; i++) {
+ (iov + i)->iov_base = (buf + iovb);
+ (iov + i)->iov_len = iovl;
+ iovb += iovl;
+ }
+
+ e = readv(fd, iov, iovcnt) < 0 ? errno : 0;
+ free(buf);
+ if (v)
+ printf("%d/%d: readv %s%s [%lld,%d,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (int)iovl,
+ iovcnt, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+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;
+
+ /* get an existing path for the source of the rename */
+ 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;
+ }
+
+ /* get an existing directory for the destination parent directory name */
+ if (!get_fname(FT_DIRm, random(), NULL, NULL, &dfep, &v))
+ parid = -1;
+ else
+ parid = dfep->id;
+ v |= v1;
+
+ /* generate a new path using an existing parent directory in name */
+ init_pathname(&newf);
+ e = generate_fname(dfep, flp - flist, &newf, &id, &v1);
+ v |= v1;
+ if (!e) {
+ if (v) {
+ (void)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);
+ if (e == 0) {
+ printf("%d/%d: rename del entry: id=%d,parent=%d\n",
+ procid, opno, fep->id, fep->parent);
+ printf("%d/%d: rename add entry: id=%d,parent=%d\n",
+ procid, opno, id, parid);
+ }
+ }
+ free_pathname(&newf);
+ free_pathname(&f);
+}
+
+void
+resvsp_f(int opno, long r)
+{
+ int e;
+ pathname_t f;
+ int fd;
+ struct xfs_flock64 fl;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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 = xfsctl(f.path, fd, XFS_IOC_RESVSP64, &fl) < 0 ? errno : 0;
+ if (v)
+ printf("%d/%d: xfsctl(XFS_IOC_RESVSP64) %s%s %lld %lld %d\n",
+ procid, opno, f.path, st,
+ (long long)off, (long long)fl.l_len, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+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);
+ if (e == 0)
+ printf("%d/%d: rmdir del entry: id=%d,parent=%d\n",
+ procid, opno, fep->id, fep->parent);
+ }
+ free_pathname(&f);
+}
+
+void
+setattr_f(int opno, long r)
+{
+ int fd;
+ int e;
+ pathname_t f;
+ uint fl;
+ int v;
+
+ init_pathname(&f);
+ if (!get_fname(FT_ANYm, r, &f, NULL, NULL, &v))
+ append_pathname(&f, ".");
+ fd = open_path(&f, O_RDWR);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+
+ fl = attr_mask & (uint)random();
+ e = ioctl(fd, FS_IOC_SETFLAGS, &fl);
+ if (v)
+ printf("%d/%d: setattr %s %x %d\n", procid, opno, f.path, fl, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+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) {
+ (void)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);
+ printf("%d/%d: symlink add id=%d,parent=%d\n", procid, opno, id, parid);
+ }
+ 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;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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%s %lld %d\n", procid, opno, f.path,
+ st, (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);
+ if (e == 0)
+ printf("%d/%d: unlink del entry: id=%d,parent=%d\n",
+ procid, opno, fep->id, fep->parent);
+ }
+ free_pathname(&f);
+}
+
+void
+unresvsp_f(int opno, long r)
+{
+ int e;
+ pathname_t f;
+ int fd;
+ struct xfs_flock64 fl;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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 = xfsctl(f.path, fd, XFS_IOC_UNRESVSP64, &fl) < 0 ? errno : 0;
+ if (v)
+ printf("%d/%d: xfsctl(XFS_IOC_UNRESVSP64) %s%s %lld %lld %d\n",
+ procid, opno, f.path, st,
+ (long long)off, (long long)fl.l_len, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+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;
+ char st[1024];
+
+ 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;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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() % FILELEN_MAX) + 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%s [%lld,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (int)len, e);
+ free_pathname(&f);
+ close(fd);
+}
+
+void
+writev_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;
+ char st[1024];
+ struct iovec *iov = NULL;
+ int iovcnt;
+ size_t iovb;
+ size_t iovl;
+ int i;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGm, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: writev - 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: writev - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: writev - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ 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() % FILELEN_MAX) + 1;
+ buf = malloc(len);
+ memset(buf, nameseq & 0xff, len);
+
+ iovcnt = (random() % MIN(len, IOV_MAX)) + 1;
+ iov = calloc(iovcnt, sizeof(struct iovec));
+ iovl = len / iovcnt;
+ iovb = 0;
+ for (i=0; i<iovcnt; i++) {
+ (iov + i)->iov_base = (buf + iovb);
+ (iov + i)->iov_len = iovl;
+ iovb += iovl;
+ }
+
+ e = writev(fd, iov, iovcnt) < 0 ? errno : 0;
+ free(buf);
+ free(iov);
+ if (v)
+ printf("%d/%d: writev %s%s [%lld,%d,%d] %d\n",
+ procid, opno, f.path, st, (long long)off, (int)iovl,
+ iovcnt, e);
+ free_pathname(&f);
+ close(fd);
+}
projects / users / sagi / blktests.git / commitdiff