static FLIST_HEAD(filename_list);
+/*
+ * List entry for filename_list
+ */
+struct file_name {
+ struct flist_head list;
+ char *filename;
+};
+
static inline void clear_error(struct thread_data *td)
{
td->error = 0;
*/
if (td_read(td) ||
(td_write(td) && td->o.overwrite && !td->o.file_append) ||
- (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
+ (td_write(td) && td_ioengine_flagged(td, FIO_NOEXTEND)))
new_layout = 1;
if (td_write(td) && !td->o.overwrite && !td->o.file_append)
unlink_file = 1;
if (unlink_file || new_layout) {
+ int ret;
+
dprint(FD_FILE, "layout unlink %s\n", f->file_name);
- if ((td_io_unlink_file(td, f) < 0) && (errno != ENOENT)) {
+
+ ret = td_io_unlink_file(td, f);
+ if (ret != 0 && ret != ENOENT) {
td_verror(td, errno, "unlink");
return 1;
}
}
#endif /* CONFIG_POSIX_FALLOCATE */
+ /*
+ * If our jobs don't require regular files initially, we're done.
+ */
if (!new_layout)
goto done;
unsigned int bs;
char *b;
- if (td->io_ops->flags & FIO_PIPEIO)
+ if (td_ioengine_flagged(td, FIO_PIPEIO))
return 0;
if (!fio_file_open(f)) {
return ret;
}
-static unsigned long long get_rand_file_size(struct thread_data *td)
+unsigned long long get_rand_file_size(struct thread_data *td)
{
unsigned long long ret, sized;
uint64_t frand_max;
int r;
if (td->io_ops->open_file(td, f)) {
- log_err("fio: failed opening blockdev %s for size check\n",
+ log_err("fio: failed opening chardev %s for size check\n",
f->file_name);
return 1;
}
if (f->filetype == FIO_TYPE_FILE)
ret = file_size(td, f);
- else if (f->filetype == FIO_TYPE_BD)
+ else if (f->filetype == FIO_TYPE_BLOCK)
ret = bdev_size(td, f);
else if (f->filetype == FIO_TYPE_CHAR)
ret = char_size(td, f);
else
- f->real_file_size = -1;
+ f->real_file_size = -1ULL;
+ /*
+ * Leave ->real_file_size with 0 since it could be expectation
+ * of initial setup for regular files.
+ */
if (ret)
return ret;
+ /*
+ * If ->real_file_size is -1, a conditional for the message
+ * "offset extends end" is always true, but it makes no sense,
+ * so just return the same value here.
+ */
+ if (f->real_file_size == -1ULL) {
+ log_info("%s: failed to get file size of %s\n", td->o.name,
+ f->file_name);
+ return 1;
+ }
+
+ if (td->o.start_offset && f->file_offset == 0)
+ dprint(FD_FILE, "offset of file %s not initialized yet\n",
+ f->file_name);
+ /*
+ * ->file_offset normally hasn't been initialized yet, so this
+ * is basically always false.
+ */
if (f->file_offset > f->real_file_size) {
log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
(unsigned long long) f->file_offset,
if (len == -1ULL || off == -1ULL)
return 0;
- dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
- len);
-
if (td->io_ops->invalidate) {
+ dprint(FD_IO, "invalidate %s cache %s\n", td->io_ops->name,
+ f->file_name);
ret = td->io_ops->invalidate(td, f);
if (ret < 0)
- errval = ret;
+ errval = -ret;
} else if (f->filetype == FIO_TYPE_FILE) {
+ dprint(FD_IO, "declare unneeded cache %s: %llu/%llu\n",
+ f->file_name, off, len);
ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
if (ret)
errval = ret;
- } else if (f->filetype == FIO_TYPE_BD) {
+ } else if (f->filetype == FIO_TYPE_BLOCK) {
int retry_count = 0;
+ dprint(FD_IO, "drop page cache %s\n", f->file_name);
ret = blockdev_invalidate_cache(f);
while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
/*
}
if (ret < 0)
errval = errno;
- } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
+ else if (ret) /* probably not supported */
+ errval = ret;
+ } else if (f->filetype == FIO_TYPE_CHAR ||
+ f->filetype == FIO_TYPE_PIPE) {
+ dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
ret = 0;
+ }
/*
* Cache flushing isn't a fatal condition, and we know it will
* continue on our way.
*/
if (errval)
- log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errval));
+ log_info("fio: cache invalidation of %s failed: %s\n",
+ f->file_name, strerror(errval));
return 0;
f->shadow_fd = -1;
}
- f->engine_data = 0;
+ f->engine_pos = 0;
return ret;
}
__f = lookup_file_hash(f->file_name);
if (__f) {
dprint(FD_FILE, "found file in hash %s\n", f->file_name);
- /*
- * racy, need the __f->lock locked
- */
f->lock = __f->lock;
from_hash = 1;
} else {
f->fd = dup(STDIN_FILENO);
else
from_hash = file_lookup_open(f, flags);
- } else { //td trim
+ } else if (td_trim(td)) {
+ assert(!td_rw(td)); /* should have matched above */
flags |= O_RDWR;
from_hash = file_lookup_open(f, flags);
}
return 0;
}
+/*
+ * This function i.e. get_file_size() is the default .get_file_size
+ * implementation of majority of I/O engines.
+ */
int generic_get_file_size(struct thread_data *td, struct fio_file *f)
{
return get_file_size(td, f);
int err = 0;
for_each_file(td, f, i) {
- dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
+ dprint(FD_FILE, "get file size for %p/%d/%s\n", f, i,
f->file_name);
if (td_io_get_file_size(td, f)) {
clear_error(td);
}
+ /*
+ * There are corner cases where we end up with -1 for
+ * ->real_file_size due to unsupported file type, etc.
+ * We then just set to size option value divided by number
+ * of files, similar to the way file ->io_size is set.
+ * stat(2) failure doesn't set ->real_file_size to -1.
+ */
if (f->real_file_size == -1ULL && td->o.size)
f->real_file_size = td->o.size / td->o.nr_files;
}
struct stat sb;
char buf[256];
- if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
+ if (f->filetype == FIO_TYPE_BLOCK || f->filetype == FIO_TYPE_CHAR) {
if (f->real_file_size != -1ULL)
ret += f->real_file_size;
continue;
goto done;
/*
- * if ioengine defines a setup() method, it's responsible for
+ * Find out physical size of files or devices for this thread,
+ * before we determine I/O size and range of our targets.
+ * If ioengine defines a setup() method, it's responsible for
* opening the files and setting f->real_file_size to indicate
* the valid range for that file.
*/
*/
total_size = 0;
for_each_file(td, f, i) {
+ f->fileno = i;
if (f->real_file_size == -1ULL)
total_size = -1ULL;
else
* device/file sizes are zero and no size given, punt
*/
if ((!total_size || total_size == -1ULL) && !o->size &&
- !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
+ !td_ioengine_flagged(td, FIO_NOIO) && !o->fill_device &&
!(o->nr_files && (o->file_size_low || o->file_size_high))) {
log_err("%s: you need to specify size=\n", o->name);
td_verror(td, EINVAL, "total_file_size");
/*
* Calculate per-file size and potential extra size for the
- * first files, if needed.
+ * first files, if needed (i.e. if we don't have a fixed size).
*/
if (!o->file_size_low && o->nr_files) {
uint64_t all_fs;
for_each_file(td, f, i) {
f->file_offset = get_start_offset(td, f);
+ /*
+ * Update ->io_size depending on options specified.
+ * ->file_size_low being 0 means filesize option isn't set.
+ * Non zero ->file_size_low equals ->file_size_high means
+ * filesize option is set in a fixed size format.
+ * Non zero ->file_size_low not equals ->file_size_high means
+ * filesize option is set in a range format.
+ */
if (!o->file_size_low) {
/*
- * no file size range given, file size is equal to
- * total size divided by number of files. If that is
- * zero, set it to the real file size. If the size
+ * no file size or range given, file size is equal to
+ * total size divided by number of files. If the size
* doesn't divide nicely with the min blocksize,
* make the first files bigger.
*/
f->io_size += bs;
}
- if (!f->io_size)
+ /*
+ * We normally don't come here for regular files, but
+ * if the result is 0 for a regular file, set it to the
+ * real file size. This could be size of the existing
+ * one if it already exists, but otherwise will be set
+ * to 0. A new file won't be created because
+ * ->io_size + ->file_offset equals ->real_file_size.
+ */
+ if (!f->io_size) {
+ if (f->file_offset > f->real_file_size)
+ goto err_offset;
f->io_size = f->real_file_size - f->file_offset;
+ if (!f->io_size)
+ log_info("fio: file %s may be ignored\n",
+ f->file_name);
+ }
} else if (f->real_file_size < o->file_size_low ||
f->real_file_size > o->file_size_high) {
if (f->file_offset > o->file_size_low)
if (f->io_size == -1ULL)
total_size = -1ULL;
else {
- if (o->size_percent)
- f->io_size = (f->io_size * o->size_percent) / 100;
+ if (o->size_percent) {
+ f->io_size = (f->io_size * o->size_percent) / 100;
+ f->io_size -= (f->io_size % td_min_bs(td));
+ }
total_size += f->io_size;
}
if (f->filetype == FIO_TYPE_FILE &&
(f->io_size + f->file_offset) > f->real_file_size &&
- !(td->io_ops->flags & FIO_DISKLESSIO)) {
+ !td_ioengine_flagged(td, FIO_DISKLESSIO)) {
if (!o->create_on_open) {
need_extend++;
extend_size += (f->io_size + f->file_offset);
+ fio_file_set_extend(f);
} else
f->real_file_size = f->io_size + f->file_offset;
- fio_file_set_extend(f);
}
}
}
/*
- * See if we need to extend some files
+ * See if we need to extend some files, typically needed when our
+ * target regular files don't exist yet, but our jobs require them
+ * initially due to read I/Os.
*/
if (need_extend) {
temp_stall_ts = 1;
- if (output_format & FIO_OUTPUT_NORMAL)
- log_info("%s: Laying out IO file(s) (%u file(s) /"
- " %lluMB)\n", o->name, need_extend,
- extend_size >> 20);
+ if (output_format & FIO_OUTPUT_NORMAL) {
+ log_info("%s: Laying out IO file%s (%u file%s / %s%lluMiB)\n",
+ o->name,
+ need_extend > 1 ? "s" : "",
+ need_extend,
+ need_extend > 1 ? "s" : "",
+ need_extend > 1 ? "total " : "",
+ extend_size >> 20);
+ }
for_each_file(td, f, i) {
unsigned long long old_len = -1ULL, extend_len = -1ULL;
* stored entries.
*/
if (!o->read_iolog_file) {
- if (o->io_limit)
- td->total_io_size = o->io_limit * o->loops;
+ if (o->io_size)
+ td->total_io_size = o->io_size * o->loops;
else
td->total_io_size = o->size * o->loops;
}
if (!fio_option_is_set(&td->o, random_generator)) {
log_info("fio: Switching to tausworthe64. Use the "
"random_generator= option to get rid of this "
- " warning.\n");
+ "warning.\n");
td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
return 0;
}
else
f->filetype = FIO_TYPE_FILE;
+#ifdef WIN32
/* \\.\ 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;
+ f->filetype = FIO_TYPE_BLOCK;
+#endif
if (!stat(f->file_name, &sb)) {
if (S_ISBLK(sb.st_mode))
- f->filetype = FIO_TYPE_BD;
+ f->filetype = FIO_TYPE_BLOCK;
else if (S_ISCHR(sb.st_mode))
f->filetype = FIO_TYPE_CHAR;
else if (S_ISFIFO(sb.st_mode))
}
}
-static int __is_already_allocated(const char *fname)
+static bool __is_already_allocated(const char *fname, bool set)
{
struct flist_head *entry;
- char *filename;
+ bool ret;
- if (flist_empty(&filename_list))
- return 0;
+ ret = file_bloom_exists(fname, set);
+ if (!ret)
+ return ret;
flist_for_each(entry, &filename_list) {
- filename = flist_entry(entry, struct file_name, list)->filename;
+ struct file_name *fn;
- if (strcmp(filename, fname) == 0)
- return 1;
+ fn = flist_entry(entry, struct file_name, list);
+
+ if (!strcmp(fn->filename, fname))
+ return true;
}
- return 0;
+ return false;
}
-static int is_already_allocated(const char *fname)
+static bool is_already_allocated(const char *fname)
{
- int ret;
+ bool ret;
fio_file_hash_lock();
- ret = __is_already_allocated(fname);
+ ret = __is_already_allocated(fname, false);
fio_file_hash_unlock();
+
return ret;
}
fn->filename = strdup(fname);
fio_file_hash_lock();
- if (!__is_already_allocated(fname)) {
+ if (!__is_already_allocated(fname, true)) {
flist_add_tail(&fn->list, &filename_list);
fn = NULL;
}
}
}
-
static void free_already_allocated(void)
{
struct flist_head *entry, *tmp;
f = smalloc(sizeof(*f));
if (!f) {
- log_err("fio: smalloc OOM\n");
assert(0);
return NULL;
}
return f;
}
+bool exists_and_not_regfile(const char *filename)
+{
+ struct stat sb;
+
+ if (lstat(filename, &sb) == -1)
+ return false;
+
+#ifndef WIN32 /* NOT Windows */
+ if (S_ISREG(sb.st_mode))
+ return false;
+#else
+ /* \\.\ is the device namespace in Windows, where every file
+ * is a device node */
+ if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
+ return false;
+#endif
+
+ return true;
+}
+
int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
{
int cur_files = td->files_index;
dprint(FD_FILE, "add file %s\n", fname);
if (td->o.directory)
- len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob);
+ len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob,
+ td->o.unique_filename);
sprintf(file_name + len, "%s", fname);
/* clean cloned siblings using existing files */
- if (numjob && is_already_allocated(file_name))
+ if (numjob && is_already_allocated(file_name) &&
+ !exists_and_not_regfile(fname))
return 0;
f = alloc_new_file(td);
/*
* init function, io engine may not be loaded yet
*/
- if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
+ if (td->io_ops && td_ioengine_flagged(td, FIO_DISKLESSIO))
f->real_file_size = -1ULL;
f->file_name = smalloc_strdup(file_name);
- if (!f->file_name) {
- log_err("fio: smalloc OOM\n");
+ if (!f->file_name)
assert(0);
- }
get_file_type(f);
if (f->file_name) {
__f->file_name = smalloc_strdup(f->file_name);
- if (!__f->file_name) {
- log_err("fio: smalloc OOM\n");
+ if (!__f->file_name)
assert(0);
- }
__f->filetype = f->filetype;
}
lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
}
-int fio_files_done(struct thread_data *td)
+bool fio_files_done(struct thread_data *td)
{
struct fio_file *f;
unsigned int i;
for_each_file(td, f, i)
if (!fio_file_done(f))
- return 0;
+ return false;
- return 1;
+ return true;
}
/* free memory used in initialization phase only */
projects / fio.git / blobdiff