#include <string.h>
#include <assert.h>
#include <dirent.h>
+#include <libgen.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/types.h>
#include "fio.h"
#include "smalloc.h"
#include "filehash.h"
+#include "os/os.h"
+
+#ifdef FIO_HAVE_LINUX_FALLOCATE
+#include <linux/falloc.h>
+#endif
static int root_warn;
return 1;
}
+#ifdef FIO_HAVE_FALLOCATE
+ if (!td->o.fill_device) {
+ switch (td->o.fallocate_mode) {
+ case FIO_FALLOCATE_NONE:
+ break;
+ case FIO_FALLOCATE_POSIX:
+ dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
+ f->file_name, f->real_file_size);
+
+ r = posix_fallocate(f->fd, 0, f->real_file_size);
+ if (r > 0) {
+ log_err("fio: posix_fallocate fails: %s\n",
+ strerror(r));
+ }
+ break;
+#ifdef FIO_HAVE_LINUX_FALLOCATE
+ case FIO_FALLOCATE_KEEP_SIZE:
+ dprint(FD_FILE,
+ "fallocate(FALLOC_FL_KEEP_SIZE) "
+ "file %s size %llu\n",
+ f->file_name, f->real_file_size);
+
+ r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
+ f->real_file_size);
+ if (r != 0) {
+ td_verror(td, errno, "fallocate");
+ }
+ break;
+#endif /* FIO_HAVE_LINUX_FALLOCATE */
+ default:
+ log_err("fio: unknown fallocate mode: %d\n",
+ td->o.fallocate_mode);
+ assert(0);
+ }
+ }
+#endif /* FIO_HAVE_FALLOCATE */
+
if (!new_layout)
goto done;
td_verror(td, errno, "ftruncate");
goto err;
}
-
-#ifdef FIO_HAVE_FALLOCATE
- dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
- f->real_file_size);
- r = posix_fallocate(f->fd, 0, f->real_file_size);
- if (r < 0) {
- log_err("fio: posix_fallocate fails: %s\n",
- strerror(-r));
- }
-#endif
}
b = malloc(td->o.max_bs[DDIR_WRITE]);
static unsigned long long get_rand_file_size(struct thread_data *td)
{
unsigned long long ret, sized;
- long r;
+ unsigned long r;
+
+ if (td->o.use_os_rand) {
+ r = os_random_long(&td->file_size_state);
+ sized = td->o.file_size_high - td->o.file_size_low;
+ ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
+ } else {
+ r = __rand(&td->__file_size_state);
+ sized = td->o.file_size_high - td->o.file_size_low;
+ ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
+ }
- r = os_random_long(&td->file_size_state);
- sized = td->o.file_size_high - td->o.file_size_low;
- ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
ret += td->o.file_size_low;
ret -= (ret % td->o.rw_min_bs);
return ret;
static int bdev_size(struct thread_data *td, struct fio_file *f)
{
- unsigned long long bytes;
+ unsigned long long bytes = 0;
int r;
if (td->io_ops->open_file(td, f)) {
return 1;
}
- r = blockdev_size(f->fd, &bytes);
+ r = blockdev_size(f, &bytes);
if (r) {
td_verror(td, r, "blockdev_size");
goto err;
return 1;
}
+static int char_size(struct thread_data *td, struct fio_file *f)
+{
+#ifdef FIO_HAVE_CHARDEV_SIZE
+ unsigned long long bytes = 0;
+ int r;
+
+ if (td->io_ops->open_file(td, f)) {
+ log_err("fio: failed opening blockdev %s for size check\n",
+ f->file_name);
+ return 1;
+ }
+
+ r = chardev_size(f, &bytes);
+ if (r) {
+ td_verror(td, r, "chardev_size");
+ goto err;
+ }
+
+ if (!bytes) {
+ log_err("%s: zero sized char device?\n", f->file_name);
+ goto err;
+ }
+
+ f->real_file_size = bytes;
+ td->io_ops->close_file(td, f);
+ return 0;
+err:
+ td->io_ops->close_file(td, f);
+ return 1;
+#else
+ f->real_file_size = -1ULL;
+ return 0;
+#endif
+}
+
static int get_file_size(struct thread_data *td, struct fio_file *f)
{
int ret = 0;
ret = file_size(td, f);
else if (f->filetype == FIO_TYPE_BD)
ret = bdev_size(td, f);
+ else if (f->filetype == FIO_TYPE_CHAR)
+ ret = char_size(td, f);
else
f->real_file_size = -1;
return ret;
if (f->file_offset > f->real_file_size) {
- log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
+ log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
f->file_offset, f->real_file_size);
return 1;
}
* FIXME: add blockdev flushing too
*/
if (f->mmap_ptr) {
- ret = madvise(f->mmap_ptr, f->mmap_sz, MADV_DONTNEED);
+ ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
#ifdef FIO_MADV_FREE
- (void) madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
+ (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
#endif
} else if (f->filetype == FIO_TYPE_FILE) {
- ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
+ ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
} else if (f->filetype == FIO_TYPE_BD) {
- ret = blockdev_invalidate_cache(f->fd);
+ ret = blockdev_invalidate_cache(f);
if (ret < 0 && errno == EACCES && geteuid()) {
if (!root_warn) {
log_err("fio: only root may flush block "
snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
+ if (__e == EINVAL && (flags & OS_O_DIRECT)) {
+ log_err("fio: looks like your file system does not " \
+ "support direct=1/buffered=0\n");
+ }
+
td_verror(td, __e, buf);
}
if (!from_hash && f->fd != -1) {
if (add_file_hash(f)) {
- int ret;
+ int fio_unused ret;
/*
* OK to ignore, we haven't done anything with it
return err;
}
+struct fio_mount {
+ struct flist_head list;
+ const char *base;
+ char __base[256];
+ unsigned int key;
+};
+
+/*
+ * Get free number of bytes for each file on each unique mount.
+ */
+static unsigned long long get_fs_free_counts(struct thread_data *td)
+{
+ struct flist_head *n, *tmp;
+ unsigned long long ret = 0;
+ struct fio_mount *fm;
+ FLIST_HEAD(list);
+ struct fio_file *f;
+ unsigned int i;
+
+ for_each_file(td, f, i) {
+ struct stat sb;
+ char buf[256];
+
+ if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
+ if (f->real_file_size != -1ULL)
+ ret += f->real_file_size;
+ continue;
+ } else if (f->filetype != FIO_TYPE_FILE)
+ continue;
+
+ strcpy(buf, f->file_name);
+
+ if (stat(buf, &sb) < 0) {
+ if (errno != ENOENT)
+ break;
+ strcpy(buf, ".");
+ if (stat(buf, &sb) < 0)
+ break;
+ }
+
+ fm = NULL;
+ flist_for_each(n, &list) {
+ fm = flist_entry(n, struct fio_mount, list);
+ if (fm->key == sb.st_dev)
+ break;
+
+ fm = NULL;
+ }
+
+ if (fm)
+ continue;
+
+ fm = malloc(sizeof(*fm));
+ strcpy(fm->__base, buf);
+ fm->base = basename(fm->__base);
+ fm->key = sb.st_dev;
+ flist_add(&fm->list, &list);
+ }
+
+ flist_for_each_safe(n, tmp, &list) {
+ unsigned long long sz;
+
+ fm = flist_entry(n, struct fio_mount, list);
+ flist_del(&fm->list);
+
+ sz = get_fs_size(fm->base);
+ if (sz && sz != -1ULL)
+ ret += sz;
+
+ free(fm);
+ }
+
+ return ret;
+}
+
/*
* Open the files and setup files sizes, creating files if necessary.
*/
dprint(FD_FILE, "setup files\n");
if (td->o.read_iolog_file)
- return 0;
+ goto done;
/*
* if ioengine defines a setup() method, it's responsible for
total_size += f->real_file_size;
}
+ if (td->o.fill_device)
+ td->fill_device_size = get_fs_free_counts(td);
+
/*
* device/file sizes are zero and no size given, punt
*/
extend_size = total_size = 0;
need_extend = 0;
for_each_file(td, f, i) {
- f->file_offset = td->o.start_offset;
+ f->file_offset = td->o.start_offset +
+ (td->thread_number - 1) * td->o.offset_increment;
if (!td->o.file_size_low) {
/*
}
}
+ if (td->o.size_percent)
+ total_size = (total_size * td->o.size_percent) / 100;
+
if (!td->o.size || td->o.size > total_size)
td->o.size = total_size;
temp_stall_ts = 1;
if (!terse_output)
log_info("%s: Laying out IO file(s) (%u file(s) /"
- " %LuMB)\n", td->o.name, need_extend,
+ " %lluMB)\n", td->o.name, need_extend,
extend_size >> 20);
for_each_file(td, f, i) {
*/
if (!td->o.read_iolog_file)
td->total_io_size = td->o.size * td->o.loops;
+
+done:
+ if (td->o.create_only)
+ td->done = 1;
+
return 0;
err_offset:
log_err("%s: you need to specify valid offset=\n", td->o.name);
(unsigned long long) td->o.rw_min_bs;
num_maps = (blocks + BLOCKS_PER_MAP - 1) /
(unsigned long long) BLOCKS_PER_MAP;
- f->file_map = smalloc(num_maps * sizeof(int));
- if (f->file_map) {
- f->num_maps = num_maps;
- continue;
- }
+ if (num_maps == (unsigned long) num_maps) {
+ f->file_map = smalloc(num_maps * sizeof(unsigned long));
+ if (f->file_map) {
+ f->num_maps = num_maps;
+ continue;
+ }
+ } else
+ f->file_map = NULL;
+
if (!td->o.softrandommap) {
log_err("fio: failed allocating random map. If running"
" a large number of jobs, try the 'norandommap'"
sfree(f->file_name);
f->file_name = NULL;
-
- if (f->file_map) {
- sfree(f->file_map);
- f->file_map = NULL;
- }
+ sfree(f->file_map);
+ f->file_map = NULL;
sfree(f);
}
else
f->filetype = FIO_TYPE_FILE;
- if (!lstat(f->file_name, &sb)) {
+ /* \\.\ is the device namespace in Windows, where every file is
+ * a block device */
+ if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
+ f->filetype = FIO_TYPE_BD;
+
+ if (!stat(f->file_name, &sb)) {
if (S_ISBLK(sb.st_mode))
f->filetype = FIO_TYPE_BD;
else if (S_ISCHR(sb.st_mode))
}
f->fd = -1;
+ fio_file_reset(f);
if (td->files_size <= td->files_index) {
int new_size = td->o.nr_files + 1;
td->files_size = new_size;
}
td->files[cur_files] = f;
+ f->fileno = cur_files;
/*
* init function, io engine may not be loaded yet
f->lock = fio_mutex_rw_init();
break;
case FILE_LOCK_EXCLUSIVE:
- f->lock = fio_mutex_init(1);
+ f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
break;
default:
log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
return cur_files;
}
+int add_file_exclusive(struct thread_data *td, const char *fname)
+{
+ struct fio_file *f;
+ unsigned int i;
+
+ for_each_file(td, f, i) {
+ if (!strcmp(f->file_name, fname))
+ return i;
+ }
+
+ return add_file(td, fname);
+}
+
void get_file(struct fio_file *f)
{
dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
continue;
- sprintf(full_path, "%s/%s", dirname, dir->d_name);
+ sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
if (lstat(full_path, &sb) == -1) {
if (errno != ENOENT) {
assert(0);
}
__f->fd = -1;
+ fio_file_reset(__f);
if (f->file_name) {
__f->file_name = smalloc_strdup(f->file_name);
projects / fio.git / blobdiff