[fio.git] / filesetup.c

#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <sys/stat.h>
#include <sys/mman.h>

#include "fio.h"
#include "os.h"

/*
 * Check if the file exists and it's large enough.
 */
static int file_ok(struct thread_data *td, struct fio_file *f)
{
	struct stat st;

	if (f->filetype != FIO_TYPE_FILE ||
	    (td->io_ops->flags & FIO_DISKLESSIO))
		return 0;

	if (lstat(f->file_name, &st) == -1)
		return 1;

	/*
	 * if it's a special file, size is always ok for now
	 */
	if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))
		return 0;
	if (st.st_size < (off_t) f->file_size)
		return 1;

	return 0;
}

static int create_file(struct thread_data *td, struct fio_file *f)
{
	unsigned long long left;
	unsigned int bs;
	char *b;
	int r;

	f->fd = open(f->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644);
	if (f->fd < 0) {
		td_verror(td, errno, "open");
		return 1;
	}

	if (ftruncate(f->fd, f->file_size) == -1) {
		td_verror(td, errno, "ftruncate");
		goto err;
	}

	if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
		td_verror(td, errno, "posix_fallocate");
		goto err;
	}

	b = malloc(td->max_bs[DDIR_WRITE]);
	memset(b, 0, td->max_bs[DDIR_WRITE]);

	left = f->file_size;
	while (left && !td->terminate) {
		bs = td->max_bs[DDIR_WRITE];
		if (bs > left)
			bs = left;

		r = write(f->fd, b, bs);

		if (r == (int) bs) {
			left -= bs;
			continue;
		} else {
			if (r < 0)
				td_verror(td, errno, "write");
			else
				td_verror(td, EIO, "write");

			break;
		}
	}

	if (td->terminate)
		unlink(f->file_name);
	else if (td->create_fsync)
		fsync(f->fd);

	free(b);
	close(f->fd);
	f->fd = -1;
	return 0;
err:
	close(f->fd);
	f->fd = -1;
	return 1;
}

static int create_files(struct thread_data *td)
{
	struct fio_file *f;
	int err, need_create, can_extend;
	unsigned int i;

	for_each_file(td, f, i)
		f->file_size = td->total_file_size / td->nr_files;

	/*
	 * unless specifically asked for overwrite, let normal io extend it
	 */
	can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
	if (can_extend)
		return 0;

	need_create = 0;
	for_each_file(td, f, i) {
		int file_there;

		if (f->filetype != FIO_TYPE_FILE)
			continue;

		file_there = !file_ok(td, f);

		if (file_there && td_write(td) && !td->overwrite) {
			unlink(f->file_name);
			file_there = 0;
		}

		need_create += !file_there;
	}

	if (!need_create)
		return 0;

	if (!td->total_file_size) {
		log_err("Need size for create\n");
		td_verror(td, EINVAL, "file_size");
		return 1;
	}

	temp_stall_ts = 1;
	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
				td->name, td->nr_uniq_files,
				(td->total_file_size >> 20) / td->nr_uniq_files,
				td->total_file_size >> 20);

	err = 0;
	for_each_file(td, f, i) {
		/*
		 * Only unlink files that we created.
		 */
		f->unlink = 0;
		if (file_ok(td, f)) {
			f->unlink = td->unlink;
			err = create_file(td, f);
			if (err)
				break;
		}
	}

	temp_stall_ts = 0;
	return err;
}

static int file_size(struct thread_data *td, struct fio_file *f)
{
	struct stat st;

	if (td->overwrite) {
		if (fstat(f->fd, &st) == -1) {
			td_verror(td, errno, "fstat");
			return 1;
		}

		f->real_file_size = st.st_size;

		if (!f->file_size || f->file_size > f->real_file_size)
			f->file_size = f->real_file_size;
	} else
		f->real_file_size = f->file_size;

	return 0;
}

static int bdev_size(struct thread_data *td, struct fio_file *f)
{
	unsigned long long bytes;
	int r;

	r = blockdev_size(f->fd, &bytes);
	if (r) {
		td_verror(td, r, "blockdev_size");
		return 1;
	}

	f->real_file_size = bytes;

	/*
	 * no extend possibilities, so limit size to device size if too large
	 */
	if (!f->file_size || f->file_size > f->real_file_size)
		f->file_size = f->real_file_size;

	f->file_size -= f->file_offset;
	return 0;
}

static int get_file_size(struct thread_data *td, struct fio_file *f)
{
	int ret = 0;

	if (f->filetype == FIO_TYPE_FILE)
		ret = file_size(td, f);
	else if (f->filetype == FIO_TYPE_BD)
		ret = bdev_size(td, f);
	else
		f->real_file_size = -1;

	if (ret)
		return ret;

	if (f->file_offset > f->real_file_size) {
		log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
		return 1;
	}

	return 0;
}

int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
{
	int ret = 0;

	if (td->odirect)
		return 0;

	/*
	 * FIXME: add blockdev flushing too
	 */
	if (f->mmap)
		ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
	else if (f->filetype == FIO_TYPE_FILE) {
		ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
	} else if (f->filetype == FIO_TYPE_BD) {
		ret = blockdev_invalidate_cache(f->fd);
	} else if (f->filetype == FIO_TYPE_CHAR)
		ret = 0;

	if (ret < 0) {
		td_verror(td, errno, "invalidate_cache");
		return 1;
	}

	return ret;
}

void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
{
	close(f->fd);
	f->fd = -1;
}

int generic_open_file(struct thread_data *td, struct fio_file *f)
{
	int flags = 0;

	if (td->odirect)
		flags |= OS_O_DIRECT;
	if (td->sync_io)
		flags |= O_SYNC;

	if (td_write(td) || td_rw(td)) {
		flags |= O_RDWR;

		if (f->filetype == FIO_TYPE_FILE)
			flags |= O_CREAT;

		f->fd = open(f->file_name, flags, 0600);
	} else {
		if (f->filetype == FIO_TYPE_CHAR)
			flags |= O_RDWR;
		else
			flags |= O_RDONLY;

		f->fd = open(f->file_name, flags);
	}

	if (f->fd == -1) {
		int __e = errno;

		td_verror(td, __e, "open");
		if (__e == EINVAL && td->odirect)
			log_err("fio: destination does not support O_DIRECT\n");
		return 1;
	}

	if (get_file_size(td, f))
		goto err;

	if (td->invalidate_cache && file_invalidate_cache(td, f))
		goto err;

	if (!td_random(td)) {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
			td_verror(td, errno, "fadvise");
			goto err;
		}
	} else {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
			td_verror(td, errno, "fadvise");
			goto err;
		}
	}

	return 0;
err:
	close(f->fd);
	return 1;
}

int open_files(struct thread_data *td)
{
	struct fio_file *f;
	unsigned int i;
	int err = 0;

	for_each_file(td, f, i) {
		err = td_io_open_file(td, f);
		if (err)
			break;

		if (td->open_files == td->nr_open_files)
			break;
	}

	if (!err)
		return 0;

	for_each_file(td, f, i)
		td_io_close_file(td, f);

	return err;
}

int setup_files(struct thread_data *td)
{
	struct fio_file *f;
	unsigned int i;
	int err;

	/*
	 * if ioengine defines a setup() method, it's responsible for
	 * setting up everything in the td->files[] area.
	 */
	if (td->io_ops->setup)
		return td->io_ops->setup(td);

	if (create_files(td))
		return 1;

	err = open_files(td);
	if (err)
		return err;

	/*
	 * Recalculate the total file size now that files are set up.
	 */
	td->total_file_size = 0;
	for_each_file(td, f, i)
		td->total_file_size += f->file_size;

	td->total_file_size = (td->total_file_size * td->nr_files) / td->open_files;

	td->io_size = td->total_file_size;
	if (td->io_size == 0) {
		log_err("%s: no io blocks\n", td->name);
		td_verror(td, EINVAL, "total_file_size");
		return 1;
	}

	if (!td->zone_size)
		td->zone_size = td->io_size;

	td->total_io_size = td->io_size * td->loops;

	for_each_file(td, f, i)
		td_io_close_file(td, f);

	return err;
}

void close_files(struct thread_data *td)
{
	struct fio_file *f;
	unsigned int i;

	for_each_file(td, f, i) {
		if (!td->filename && f->unlink &&
		    f->filetype == FIO_TYPE_FILE) {
			unlink(f->file_name);
			f->file_name = NULL;
		}

		td_io_close_file(td, f);

		if (f->file_map)
			free(f->file_map);
	}

	td->filename = NULL;
	free(td->files);
	td->files = NULL;
	td->nr_files = 0;
}

static void get_file_type(struct thread_data *td, struct fio_file *f)
{
	struct stat sb;

	f->filetype = FIO_TYPE_FILE;

	if (!lstat(td->filename, &sb)) {
		if (S_ISBLK(sb.st_mode))
			f->filetype = FIO_TYPE_BD;
		else if (S_ISCHR(sb.st_mode))
			f->filetype = FIO_TYPE_CHAR;
	}
}

void add_file(struct thread_data *td, const char *fname)
{
	int cur_files = td->open_files;
	struct fio_file *f;

	td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));

	f = &td->files[cur_files];
	memset(f, 0, sizeof(*f));
	f->fd = -1;
	f->file_name = fname;

	get_file_type(td, f);

	td->open_files++;
	td->nr_uniq_files = td->open_files;
}
Commit	Line	Data
53cdc686 JA	1	#include <unistd.h>
	2	#include <fcntl.h>
	3	#include <string.h>
	4	#include <assert.h>
	5	#include <sys/stat.h>
	6	#include <sys/mman.h>
	7
	8	#include "fio.h"
	9	#include "os.h"
	10
25205e97 JA	11	/*
	12	* Check if the file exists and it's large enough.
	13	*/
	14	static int file_ok(struct thread_data td, struct fio_file f)
53cdc686	15	{
b2a15192	16	struct stat st;
53cdc686	17
af52b345	18	if (f->filetype != FIO_TYPE_FILE \|\|
b5af8293	19	(td->io_ops->flags & FIO_DISKLESSIO))
b2a15192 JA	20	return 0;
b2a15192 JA	21
fa01d139	22	if (lstat(f->file_name, &st) == -1)
25205e97	23	return 1;
fa01d139 JA	24
	25	/*
	26	* if it's a special file, size is always ok for now
	27	*/
	28	if (S_ISCHR(st.st_mode) \|\| S_ISBLK(st.st_mode))
	29	return 0;
	30	if (st.st_size < (off_t) f->file_size)
25205e97 JA	31	return 1;
	32
	33	return 0;
	34	}
	35
	36	static int create_file(struct thread_data td, struct fio_file f)
	37	{
	38	unsigned long long left;
	39	unsigned int bs;
	40	char *b;
	41	int r;
b2a15192	42
53cdc686 JA	43	f->fd = open(f->file_name, O_WRONLY \| O_CREAT \| O_TRUNC, 0644);
53cdc686 JA	44	if (f->fd < 0) {
e1161c32	45	td_verror(td, errno, "open");
53cdc686 JA	46	return 1;
	47	}
	48
	49	if (ftruncate(f->fd, f->file_size) == -1) {
e1161c32	50	td_verror(td, errno, "ftruncate");
53cdc686 JA	51	goto err;
	52	}
	53
40f8298c	54	if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
e1161c32	55	td_verror(td, errno, "posix_fallocate");
40f8298c JA	56	goto err;
	57	}
	58
a00735e6 JA	59	b = malloc(td->max_bs[DDIR_WRITE]);
a00735e6 JA	60	memset(b, 0, td->max_bs[DDIR_WRITE]);
53cdc686 JA	61
	62	left = f->file_size;
	63	while (left && !td->terminate) {
a00735e6	64	bs = td->max_bs[DDIR_WRITE];
53cdc686 JA	65	if (bs > left)
	66	bs = left;
	67
	68	r = write(f->fd, b, bs);
	69
	70	if (r == (int) bs) {
	71	left -= bs;
	72	continue;
	73	} else {
	74	if (r < 0)
e1161c32	75	td_verror(td, errno, "write");
53cdc686	76	else
e1161c32	77	td_verror(td, EIO, "write");
53cdc686 JA	78
	79	break;
	80	}
	81	}
	82
	83	if (td->terminate)
	84	unlink(f->file_name);
	85	else if (td->create_fsync)
	86	fsync(f->fd);
	87
	88	free(b);
	89	close(f->fd);
	90	f->fd = -1;
	91	return 0;
	92	err:
	93	close(f->fd);
	94	f->fd = -1;
	95	return 1;
	96	}
	97
	98	static int create_files(struct thread_data *td)
	99	{
	100	struct fio_file *f;
af52b345 JA	101	int err, need_create, can_extend;
af52b345 JA	102	unsigned int i;
53cdc686	103
f697125a JA	104	for_each_file(td, f, i)
	105	f->file_size = td->total_file_size / td->nr_files;
	106
53cdc686 JA	107	/*
	108	* unless specifically asked for overwrite, let normal io extend it
	109	*/
0263882a JA	110	can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
0263882a JA	111	if (can_extend)
53cdc686	112	return 0;
53cdc686	113
25205e97	114	need_create = 0;
af52b345 JA	115	for_each_file(td, f, i) {
	116	int file_there;
	117
	118	if (f->filetype != FIO_TYPE_FILE)
	119	continue;
eff6861d	120
af52b345	121	file_there = !file_ok(td, f);
eff6861d	122
af52b345 JA	123	if (file_there && td_write(td) && !td->overwrite) {
	124	unlink(f->file_name);
	125	file_there = 0;
eff6861d	126	}
af52b345 JA	127
af52b345 JA	128	need_create += !file_there;
eff6861d	129	}
25205e97	130
25205e97 JA	131	if (!need_create)
	132	return 0;
	133
f1027063 JA	134	if (!td->total_file_size) {
f1027063 JA	135	log_err("Need size for create\n");
e1161c32	136	td_verror(td, EINVAL, "file_size");
f1027063 JA	137	return 1;
	138	}
	139
53cdc686	140	temp_stall_ts = 1;
1e97cce9	141	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
13f8e2d2 JA	142	td->name, td->nr_uniq_files,
13f8e2d2 JA	143	(td->total_file_size >> 20) / td->nr_uniq_files,
25205e97	144	td->total_file_size >> 20);
53cdc686 JA	145
	146	err = 0;
	147	for_each_file(td, f, i) {
9b031dc8 JA	148	/*
	149	* Only unlink files that we created.
	150	*/
	151	f->unlink = 0;
25205e97	152	if (file_ok(td, f)) {
9b031dc8	153	f->unlink = td->unlink;
25205e97 JA	154	err = create_file(td, f);
	155	if (err)
	156	break;
	157	}
53cdc686 JA	158	}
	159
	160	temp_stall_ts = 0;
	161	return err;
	162	}
	163
	164	static int file_size(struct thread_data td, struct fio_file f)
	165	{
	166	struct stat st;
	167
	168	if (td->overwrite) {
	169	if (fstat(f->fd, &st) == -1) {
e1161c32	170	td_verror(td, errno, "fstat");
53cdc686 JA	171	return 1;
	172	}
	173
	174	f->real_file_size = st.st_size;
	175
	176	if (!f->file_size \|\| f->file_size > f->real_file_size)
	177	f->file_size = f->real_file_size;
745508dd JA	178	} else
745508dd JA	179	f->real_file_size = f->file_size;
53cdc686	180
53cdc686 JA	181	return 0;
	182	}
	183
	184	static int bdev_size(struct thread_data td, struct fio_file f)
	185	{
	186	unsigned long long bytes;
	187	int r;
	188
	189	r = blockdev_size(f->fd, &bytes);
	190	if (r) {
e1161c32	191	td_verror(td, r, "blockdev_size");
53cdc686 JA	192	return 1;
	193	}
	194
	195	f->real_file_size = bytes;
	196
	197	/*
	198	* no extend possibilities, so limit size to device size if too large
	199	*/
	200	if (!f->file_size \|\| f->file_size > f->real_file_size)
	201	f->file_size = f->real_file_size;
	202
	203	f->file_size -= f->file_offset;
	204	return 0;
	205	}
	206
	207	static int get_file_size(struct thread_data td, struct fio_file f)
	208	{
	209	int ret = 0;
	210
af52b345	211	if (f->filetype == FIO_TYPE_FILE)
53cdc686	212	ret = file_size(td, f);
af52b345	213	else if (f->filetype == FIO_TYPE_BD)
53cdc686 JA	214	ret = bdev_size(td, f);
	215	else
	216	f->real_file_size = -1;
	217
	218	if (ret)
	219	return ret;
	220
	221	if (f->file_offset > f->real_file_size) {
	222	log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
	223	return 1;
	224	}
	225
53cdc686 JA	226	return 0;
	227	}
	228
e5b401d4 JA	229	int file_invalidate_cache(struct thread_data td, struct fio_file f)
	230	{
	231	int ret = 0;
	232
da86ccb6	233	if (td->odirect)
b5af8293 JA	234	return 0;
b5af8293 JA	235
e5b401d4 JA	236	/*
	237	* FIXME: add blockdev flushing too
	238	*/
b5af8293	239	if (f->mmap)
e5b401d4	240	ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
af52b345	241	else if (f->filetype == FIO_TYPE_FILE) {
b5af8293	242	ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
af52b345	243	} else if (f->filetype == FIO_TYPE_BD) {
b5af8293	244	ret = blockdev_invalidate_cache(f->fd);
af52b345	245	} else if (f->filetype == FIO_TYPE_CHAR)
e5b401d4 JA	246	ret = 0;
	247
	248	if (ret < 0) {
e1161c32	249	td_verror(td, errno, "invalidate_cache");
e5b401d4 JA	250	return 1;
	251	}
	252
ad2da605	253	return ret;
e5b401d4 JA	254	}
e5b401d4 JA	255
b5af8293	256	void generic_close_file(struct thread_data fio_unused td, struct fio_file f)
53cdc686	257	{
b5af8293 JA	258	close(f->fd);
b5af8293 JA	259	f->fd = -1;
53cdc686 JA	260	}
53cdc686 JA	261
b5af8293	262	int generic_open_file(struct thread_data td, struct fio_file f)
53cdc686	263	{
53cdc686 JA	264	int flags = 0;
53cdc686 JA	265
2fd233b7 JA	266	if (td->odirect)
	267	flags \|= OS_O_DIRECT;
	268	if (td->sync_io)
	269	flags \|= O_SYNC;
53cdc686	270
2fd233b7 JA	271	if (td_write(td) \|\| td_rw(td)) {
2fd233b7 JA	272	flags \|= O_RDWR;
53cdc686	273
af52b345	274	if (f->filetype == FIO_TYPE_FILE)
2fd233b7	275	flags \|= O_CREAT;
2fd233b7	276
b5af8293	277	f->fd = open(f->file_name, flags, 0600);
2fd233b7	278	} else {
af52b345	279	if (f->filetype == FIO_TYPE_CHAR)
2fd233b7 JA	280	flags \|= O_RDWR;
	281	else
	282	flags \|= O_RDONLY;
	283
b5af8293	284	f->fd = open(f->file_name, flags);
53cdc686 JA	285	}
	286
	287	if (f->fd == -1) {
e1161c32 JA	288	int __e = errno;
	289
	290	td_verror(td, __e, "open");
	291	if (__e == EINVAL && td->odirect)
9d80e114	292	log_err("fio: destination does not support O_DIRECT\n");
53cdc686 JA	293	return 1;
	294	}
	295
b5af8293 JA	296	if (get_file_size(td, f))
	297	goto err;
	298
0263882a	299	if (td->invalidate_cache && file_invalidate_cache(td, f))
b5af8293 JA	300	goto err;
	301
	302	if (!td_random(td)) {
	303	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
	304	td_verror(td, errno, "fadvise");
	305	goto err;
	306	}
	307	} else {
	308	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
	309	td_verror(td, errno, "fadvise");
	310	goto err;
	311	}
bdb4e2e9	312	}
53cdc686 JA	313
53cdc686 JA	314	return 0;
b5af8293 JA	315	err:
	316	close(f->fd);
	317	return 1;
	318	}
	319
21972cde JA	320	int open_files(struct thread_data *td)
	321	{
	322	struct fio_file *f;
af52b345 JA	323	unsigned int i;
af52b345 JA	324	int err = 0;
21972cde JA	325
21972cde JA	326	for_each_file(td, f, i) {
b5af8293	327	err = td_io_open_file(td, f);
21972cde JA	328	if (err)
21972cde JA	329	break;
b5af8293 JA	330
	331	if (td->open_files == td->nr_open_files)
	332	break;
21972cde JA	333	}
21972cde JA	334
7abf833d JA	335	if (!err)
	336	return 0;
	337
bdb4e2e9	338	for_each_file(td, f, i)
b5af8293	339	td_io_close_file(td, f);
7abf833d	340
21972cde JA	341	return err;
	342	}
	343
53cdc686 JA	344	int setup_files(struct thread_data *td)
	345	{
	346	struct fio_file *f;
af52b345 JA	347	unsigned int i;
af52b345 JA	348	int err;
53cdc686 JA	349
	350	/*
	351	* if ioengine defines a setup() method, it's responsible for
	352	* setting up everything in the td->files[] area.
	353	*/
	354	if (td->io_ops->setup)
	355	return td->io_ops->setup(td);
	356
	357	if (create_files(td))
	358	return 1;
	359
21972cde	360	err = open_files(td);
f1027063 JA	361	if (err)
	362	return err;
	363
0a7eb121 JA	364	/*
	365	* Recalculate the total file size now that files are set up.
	366	*/
	367	td->total_file_size = 0;
	368	for_each_file(td, f, i)
	369	td->total_file_size += f->file_size;
	370
0f14fef3 JA	371	td->total_file_size = (td->total_file_size * td->nr_files) / td->open_files;
0f14fef3 JA	372
f1027063	373	td->io_size = td->total_file_size;
53cdc686 JA	374	if (td->io_size == 0) {
53cdc686 JA	375	log_err("%s: no io blocks\n", td->name);
e1161c32	376	td_verror(td, EINVAL, "total_file_size");
53cdc686 JA	377	return 1;
	378	}
	379
	380	if (!td->zone_size)
	381	td->zone_size = td->io_size;
	382
	383	td->total_io_size = td->io_size * td->loops;
	384
bdb4e2e9	385	for_each_file(td, f, i)
b5af8293	386	td_io_close_file(td, f);
21972cde JA	387
21972cde JA	388	return err;
53cdc686 JA	389	}
	390
	391	void close_files(struct thread_data *td)
	392	{
0ab8db89	393	struct fio_file *f;
af52b345	394	unsigned int i;
53cdc686	395
0ab8db89	396	for_each_file(td, f, i) {
9b031dc8	397	if (!td->filename && f->unlink &&
af52b345	398	f->filetype == FIO_TYPE_FILE) {
132ad46d	399	unlink(f->file_name);
132ad46d JA	400	f->file_name = NULL;
132ad46d JA	401	}
bdb4e2e9	402
b5af8293	403	td_io_close_file(td, f);
b3dc7f07 JA	404
	405	if (f->file_map)
	406	free(f->file_map);
53cdc686	407	}
b4a6a59a	408
132ad46d	409	td->filename = NULL;
b4a6a59a JA	410	free(td->files);
	411	td->files = NULL;
	412	td->nr_files = 0;
53cdc686	413	}
af52b345 JA	414
	415	static void get_file_type(struct thread_data td, struct fio_file f)
	416	{
	417	struct stat sb;
	418
	419	f->filetype = FIO_TYPE_FILE;
	420
	421	if (!lstat(td->filename, &sb)) {
	422	if (S_ISBLK(sb.st_mode))
	423	f->filetype = FIO_TYPE_BD;
	424	else if (S_ISCHR(sb.st_mode))
	425	f->filetype = FIO_TYPE_CHAR;
	426	}
	427	}
	428
	429	void add_file(struct thread_data td, const char fname)
	430	{
	431	int cur_files = td->open_files;
	432	struct fio_file *f;
	433
	434	td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));
	435
	436	f = &td->files[cur_files];
	437	memset(f, 0, sizeof(*f));
	438	f->fd = -1;
	439	f->file_name = fname;
	440
	441	get_file_type(td, f);
	442
	443	td->open_files++;
	444	td->nr_uniq_files = td->open_files;
	445	}