- return 1;
- }
-
- if (!td->zone_size)
- td->zone_size = td->io_size;
-
- td->total_io_size = td->io_size * td->loops;
- return 0;
-}
-
-static int setup_file_mmap(struct thread_data *td)
-{
- int flags;
-
- if (td_rw(td))
- flags = PROT_READ | PROT_WRITE;
- else if (td_write(td)) {
- flags = PROT_WRITE;
-
- if (td->verify != VERIFY_NONE)
- flags |= PROT_READ;
- } else
- flags = PROT_READ;
-
- td->mmap = mmap(NULL, td->file_size, flags, MAP_SHARED, td->fd, td->file_offset);
- if (td->mmap == MAP_FAILED) {
- td->mmap = NULL;
- td_verror(td, errno);
- return 1;
- }
-
- if (td->invalidate_cache) {
- if (madvise(td->mmap, td->file_size, MADV_DONTNEED) < 0) {
- td_verror(td, errno);
- return 1;
- }
- }
-
- if (td->sequential) {
- if (madvise(td->mmap, td->file_size, MADV_SEQUENTIAL) < 0) {
- td_verror(td, errno);
- return 1;
- }
- } else {
- if (madvise(td->mmap, td->file_size, MADV_RANDOM) < 0) {
- td_verror(td, errno);
- return 1;
- }
- }
-
- return 0;
-}
-
-static int setup_file_plain(struct thread_data *td)
-{
- if (td->invalidate_cache) {
- if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_DONTNEED) < 0) {
- td_verror(td, errno);
- return 1;
- }
- }
-
- if (td->sequential) {
- if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
- td_verror(td, errno);
- return 1;
- }
- } else {
- if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_RANDOM) < 0) {
- td_verror(td, errno);
- return 1;
- }
- }
-
- return 0;
-}
-
-static int setup_file(struct thread_data *td)
-{
- struct stat st;
- int flags = 0;
-
- if (stat(td->file_name, &st) == -1) {
- if (errno != ENOENT) {
- td_verror(td, errno);
- return 1;
- }
- if (!td->create_file) {
- td_verror(td, ENOENT);
- return 1;
- }
- if (create_file(td, td->file_size, 0))
- return 1;
- } else if (td->filetype == FIO_TYPE_FILE) {
- if (st.st_size < (off_t) td->file_size) {
- if (create_file(td, td->file_size - st.st_size, 1))
- return 1;
- }
- }
-
- if (td->odirect)
- flags |= O_DIRECT;
-
- if (td_write(td) || td_rw(td)) {
- if (td->filetype == FIO_TYPE_FILE) {
- if (!td->overwrite)
- flags |= O_TRUNC;
-
- flags |= O_CREAT;
- }
- if (td->sync_io)
- flags |= O_SYNC;
-
- flags |= O_RDWR;
-
- td->fd = open(td->file_name, flags, 0600);
- } else {
- if (td->filetype == FIO_TYPE_CHAR)
- flags |= O_RDWR;
- else
- flags |= O_RDONLY;
-
- td->fd = open(td->file_name, flags);
- }
-
- if (td->fd == -1) {
- td_verror(td, errno);
- return 1;
- }
-
- if (get_file_size(td))
- return 1;
-
- if (td->io_engine != FIO_MMAPIO)
- return setup_file_plain(td);
- else
- return setup_file_mmap(td);
-}
-
-static int check_dev_match(dev_t dev, char *path)
-{
- unsigned int major, minor;
- char line[256], *p;
- FILE *f;
-
- f = fopen(path, "r");
- if (!f) {
- perror("open path");
- return 1;
- }
-
- p = fgets(line, sizeof(line), f);
- if (!p) {
- fclose(f);
- return 1;
- }
-
- if (sscanf(p, "%u:%u", &major, &minor) != 2) {
- fclose(f);
- return 1;
- }
-
- if (((major << 8) | minor) == dev) {
- fclose(f);
- return 0;
- }
-
- fclose(f);
- return 1;
-}
-
-static int find_block_dir(dev_t dev, char *path)
-{
- struct dirent *dir;
- struct stat st;
- int found = 0;
- DIR *D;
-
- D = opendir(path);
- if (!D)
- return 0;
-
- while ((dir = readdir(D)) != NULL) {
- char full_path[256];
-
- if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
- continue;
- if (!strcmp(dir->d_name, "device"))
- continue;
-
- sprintf(full_path, "%s/%s", path, dir->d_name);
-
- if (!strcmp(dir->d_name, "dev")) {
- if (!check_dev_match(dev, full_path)) {
- found = 1;
- break;
- }
- }
-
- if (stat(full_path, &st) == -1) {
- perror("stat");
- break;
- }
-
- if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode))
- continue;
-
- found = find_block_dir(dev, full_path);
- if (found) {
- strcpy(path, full_path);
- break;
- }
- }
-
- closedir(D);
- return found;
-}
-
-static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus)
-{
- unsigned in_flight;
- char line[256];
- FILE *f;
- char *p;
-
- f = fopen(du->path, "r");
- if (!f)
- return 1;
-
- p = fgets(line, sizeof(line), f);
- if (!p) {
- fclose(f);
- return 1;
- }
-
- if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) {