[fio.git] / engines / sync.c

/*
 * sync/psync engine
 *
 * IO engine that does regular read(2)/write(2) with lseek(2) to transfer
 * data and IO engine that does regular pread(2)/pwrite(2) to transfer data.
 *
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/uio.h>
#include <errno.h>
#include <assert.h>

#include "../fio.h"

/*
 * Sync engine uses engine_data to store last offset
 */
#define LAST_POS(f)	((f)->engine_data)

struct syncio_data {
	struct iovec *iovecs;
	struct io_u **io_us;
	unsigned int queued;
	unsigned int events;
	unsigned long queued_bytes;

	unsigned long long last_offset;
	struct fio_file *last_file;
	enum fio_ddir last_ddir;
};

static int fio_syncio_prep(struct thread_data *td, struct io_u *io_u)
{
	struct fio_file *f = io_u->file;

	if (!ddir_rw(io_u->ddir))
		return 0;

	if (LAST_POS(f) != -1ULL && LAST_POS(f) == io_u->offset)
		return 0;

	if (lseek(f->fd, io_u->offset, SEEK_SET) == -1) {
		td_verror(td, errno, "lseek");
		return 1;
	}

	return 0;
}

static int fio_io_end(struct thread_data *td, struct io_u *io_u, int ret)
{
	if (io_u->file && ret >= 0 && ddir_rw(io_u->ddir))
		LAST_POS(io_u->file) = io_u->offset + ret;

	if (ret != (int) io_u->xfer_buflen) {
		if (ret >= 0) {
			io_u->resid = io_u->xfer_buflen - ret;
			io_u->error = 0;
			return FIO_Q_COMPLETED;
		} else
			io_u->error = errno;
	}

	if (io_u->error)
		td_verror(td, io_u->error, "xfer");

	return FIO_Q_COMPLETED;
}

#ifdef CONFIG_PWRITEV
static int fio_pvsyncio_queue(struct thread_data *td, struct io_u *io_u)
{
	struct syncio_data *sd = td->io_ops->data;
	struct iovec *iov = &sd->iovecs[0];
	struct fio_file *f = io_u->file;
	int ret;

	fio_ro_check(td, io_u);

	iov->iov_base = io_u->xfer_buf;
	iov->iov_len = io_u->xfer_buflen;

	if (io_u->ddir == DDIR_READ)
		ret = preadv(f->fd, iov, 1, io_u->offset);
	else if (io_u->ddir == DDIR_WRITE)
		ret = pwritev(f->fd, iov, 1, io_u->offset);
	else if (io_u->ddir == DDIR_TRIM) {
		do_io_u_trim(td, io_u);
		return FIO_Q_COMPLETED;
	} else
		ret = do_io_u_sync(td, io_u);

	return fio_io_end(td, io_u, ret);
}
#endif

static int fio_psyncio_queue(struct thread_data *td, struct io_u *io_u)
{
	struct fio_file *f = io_u->file;
	int ret;

	fio_ro_check(td, io_u);

	if (io_u->ddir == DDIR_READ)
		ret = pread(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
	else if (io_u->ddir == DDIR_WRITE)
		ret = pwrite(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
	else if (io_u->ddir == DDIR_TRIM) {
		do_io_u_trim(td, io_u);
		return FIO_Q_COMPLETED;
	} else
		ret = do_io_u_sync(td, io_u);

	return fio_io_end(td, io_u, ret);
}

static int fio_syncio_queue(struct thread_data *td, struct io_u *io_u)
{
	struct fio_file *f = io_u->file;
	int ret;

	fio_ro_check(td, io_u);

	if (io_u->ddir == DDIR_READ)
		ret = read(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
	else if (io_u->ddir == DDIR_WRITE)
		ret = write(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
	else if (io_u->ddir == DDIR_TRIM) {
		do_io_u_trim(td, io_u);
		return FIO_Q_COMPLETED;
	} else
		ret = do_io_u_sync(td, io_u);

	return fio_io_end(td, io_u, ret);
}

static int fio_vsyncio_getevents(struct thread_data *td, unsigned int min,
				 unsigned int max,
				 struct timespec fio_unused *t)
{
	struct syncio_data *sd = td->io_ops->data;
	int ret;

	if (min) {
		ret = sd->events;
		sd->events = 0;
	} else
		ret = 0;

	dprint(FD_IO, "vsyncio_getevents: min=%d,max=%d: %d\n", min, max, ret);
	return ret;
}

static struct io_u *fio_vsyncio_event(struct thread_data *td, int event)
{
	struct syncio_data *sd = td->io_ops->data;

	return sd->io_us[event];
}

static int fio_vsyncio_append(struct thread_data *td, struct io_u *io_u)
{
	struct syncio_data *sd = td->io_ops->data;

	if (ddir_sync(io_u->ddir))
		return 0;

	if (io_u->offset == sd->last_offset && io_u->file == sd->last_file &&
	    io_u->ddir == sd->last_ddir)
		return 1;

	return 0;
}

static void fio_vsyncio_set_iov(struct syncio_data *sd, struct io_u *io_u,
				int idx)
{
	sd->io_us[idx] = io_u;
	sd->iovecs[idx].iov_base = io_u->xfer_buf;
	sd->iovecs[idx].iov_len = io_u->xfer_buflen;
	sd->last_offset = io_u->offset + io_u->xfer_buflen;
	sd->last_file = io_u->file;
	sd->last_ddir = io_u->ddir;
	sd->queued_bytes += io_u->xfer_buflen;
	sd->queued++;
}

static int fio_vsyncio_queue(struct thread_data *td, struct io_u *io_u)
{
	struct syncio_data *sd = td->io_ops->data;

	fio_ro_check(td, io_u);

	if (!fio_vsyncio_append(td, io_u)) {
		dprint(FD_IO, "vsyncio_queue: no append (%d)\n", sd->queued);
		/*
		 * If we can't append and have stuff queued, tell fio to
		 * commit those first and then retry this io
		 */
		if (sd->queued)
			return FIO_Q_BUSY;
		if (ddir_sync(io_u->ddir)) {
			int ret = do_io_u_sync(td, io_u);

			return fio_io_end(td, io_u, ret);
		}

		sd->queued = 0;
		sd->queued_bytes = 0;
		fio_vsyncio_set_iov(sd, io_u, 0);
	} else {
		if (sd->queued == td->o.iodepth) {
			dprint(FD_IO, "vsyncio_queue: max depth %d\n", sd->queued);
			return FIO_Q_BUSY;
		}

		dprint(FD_IO, "vsyncio_queue: append\n");
		fio_vsyncio_set_iov(sd, io_u, sd->queued);
	}

	dprint(FD_IO, "vsyncio_queue: depth now %d\n", sd->queued);
	return FIO_Q_QUEUED;
}

/*
 * Check that we transferred all bytes, or saw an error, etc
 */
static int fio_vsyncio_end(struct thread_data *td, ssize_t bytes)
{
	struct syncio_data *sd = td->io_ops->data;
	struct io_u *io_u;
	unsigned int i;
	int err;

	/*
	 * transferred everything, perfect
	 */
	if (bytes == sd->queued_bytes)
		return 0;

	err = errno;
	for (i = 0; i < sd->queued; i++) {
		io_u = sd->io_us[i];

		if (bytes == -1) {
			io_u->error = err;
		} else {
			unsigned int this_io;

			this_io = bytes;
			if (this_io > io_u->xfer_buflen)
				this_io = io_u->xfer_buflen;

			io_u->resid = io_u->xfer_buflen - this_io;
			io_u->error = 0;
			bytes -= this_io;
		}
	}

	if (bytes == -1) {
		td_verror(td, err, "xfer vsync");
		return -err;
	}

	return 0;
}

static int fio_vsyncio_commit(struct thread_data *td)
{
	struct syncio_data *sd = td->io_ops->data;
	struct fio_file *f;
	ssize_t ret;

	if (!sd->queued)
		return 0;

	io_u_mark_submit(td, sd->queued);
	f = sd->last_file;

	if (lseek(f->fd, sd->io_us[0]->offset, SEEK_SET) == -1) {
		int err = -errno;

		td_verror(td, errno, "lseek");
		return err;
	}

	if (sd->last_ddir == DDIR_READ)
		ret = readv(f->fd, sd->iovecs, sd->queued);
	else
		ret = writev(f->fd, sd->iovecs, sd->queued);

	dprint(FD_IO, "vsyncio_commit: %d\n", (int) ret);
	sd->events = sd->queued;
	sd->queued = 0;
	return fio_vsyncio_end(td, ret);
}

static int fio_vsyncio_init(struct thread_data *td)
{
	struct syncio_data *sd;

	sd = malloc(sizeof(*sd));
	memset(sd, 0, sizeof(*sd));
	sd->last_offset = -1ULL;
	sd->iovecs = malloc(td->o.iodepth * sizeof(struct iovec));
	sd->io_us = malloc(td->o.iodepth * sizeof(struct io_u *));

	td->io_ops->data = sd;
	return 0;
}

static void fio_vsyncio_cleanup(struct thread_data *td)
{
	struct syncio_data *sd = td->io_ops->data;

	free(sd->iovecs);
	free(sd->io_us);
	free(sd);
}

static struct ioengine_ops ioengine_rw = {
	.name		= "sync",
	.version	= FIO_IOOPS_VERSION,
	.prep		= fio_syncio_prep,
	.queue		= fio_syncio_queue,
	.open_file	= generic_open_file,
	.close_file	= generic_close_file,
	.get_file_size	= generic_get_file_size,
	.flags		= FIO_SYNCIO,
};

static struct ioengine_ops ioengine_prw = {
	.name		= "psync",
	.version	= FIO_IOOPS_VERSION,
	.queue		= fio_psyncio_queue,
	.open_file	= generic_open_file,
	.close_file	= generic_close_file,
	.get_file_size	= generic_get_file_size,
	.flags		= FIO_SYNCIO,
};

static struct ioengine_ops ioengine_vrw = {
	.name		= "vsync",
	.version	= FIO_IOOPS_VERSION,
	.init		= fio_vsyncio_init,
	.cleanup	= fio_vsyncio_cleanup,
	.queue		= fio_vsyncio_queue,
	.commit		= fio_vsyncio_commit,
	.event		= fio_vsyncio_event,
	.getevents	= fio_vsyncio_getevents,
	.open_file	= generic_open_file,
	.close_file	= generic_close_file,
	.get_file_size	= generic_get_file_size,
	.flags		= FIO_SYNCIO,
};

#ifdef CONFIG_PWRITEV
static struct ioengine_ops ioengine_pvrw = {
	.name		= "pvsync",
	.version	= FIO_IOOPS_VERSION,
	.init		= fio_vsyncio_init,
	.cleanup	= fio_vsyncio_cleanup,
	.queue		= fio_pvsyncio_queue,
	.open_file	= generic_open_file,
	.close_file	= generic_close_file,
	.get_file_size	= generic_get_file_size,
	.flags		= FIO_SYNCIO,
};
#endif

static void fio_init fio_syncio_register(void)
{
	register_ioengine(&ioengine_rw);
	register_ioengine(&ioengine_prw);
	register_ioengine(&ioengine_vrw);
#ifdef CONFIG_PWRITEV
	register_ioengine(&ioengine_pvrw);
#endif
}

static void fio_exit fio_syncio_unregister(void)
{
	unregister_ioengine(&ioengine_rw);
	unregister_ioengine(&ioengine_prw);
	unregister_ioengine(&ioengine_vrw);
#ifdef CONFIG_PWRITEV
	unregister_ioengine(&ioengine_pvrw);
#endif
}
Commit	Line	Data
2866c82d	1	/*
a31041ea	2	* sync/psync engine
da751ca9 JA	3	*
da751ca9 JA	4	* IO engine that does regular read(2)/write(2) with lseek(2) to transfer
a31041ea	5	* data and IO engine that does regular pread(2)/pwrite(2) to transfer data.
2866c82d JA	6	*
	7	*/
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <unistd.h>
5921e80c	11	#include <sys/uio.h>
2866c82d JA	12	#include <errno.h>
2866c82d JA	13	#include <assert.h>
5f350952 JA	14
5f350952 JA	15	#include "../fio.h"
2866c82d	16
ef5f5a3a JA	17	/*
	18	* Sync engine uses engine_data to store last offset
	19	*/
	20	#define LAST_POS(f) ((f)->engine_data)
	21
1d2af02a JA	22	struct syncio_data {
	23	struct iovec *iovecs;
	24	struct io_u **io_us;
	25	unsigned int queued;
e51cf72c	26	unsigned int events;
1d2af02a JA	27	unsigned long queued_bytes;
	28
	29	unsigned long long last_offset;
	30	struct fio_file *last_file;
	31	enum fio_ddir last_ddir;
	32	};
	33
2866c82d JA	34	static int fio_syncio_prep(struct thread_data td, struct io_u io_u)
2866c82d JA	35	{
53cdc686 JA	36	struct fio_file *f = io_u->file;
53cdc686 JA	37
ff58fced	38	if (!ddir_rw(io_u->ddir))
87dc1ab1 JA	39	return 0;
87dc1ab1 JA	40
ef5f5a3a	41	if (LAST_POS(f) != -1ULL && LAST_POS(f) == io_u->offset)
e943b878 JA	42	return 0;
e943b878 JA	43
53cdc686	44	if (lseek(f->fd, io_u->offset, SEEK_SET) == -1) {
e1161c32	45	td_verror(td, errno, "lseek");
2866c82d JA	46	return 1;
	47	}
	48
	49	return 0;
	50	}
	51
2bd3eabc	52	static int fio_io_end(struct thread_data td, struct io_u io_u, int ret)
2866c82d	53	{
ff58fced	54	if (io_u->file && ret >= 0 && ddir_rw(io_u->ddir))
ef5f5a3a	55	LAST_POS(io_u->file) = io_u->offset + ret;
e943b878	56
cec6b55d	57	if (ret != (int) io_u->xfer_buflen) {
22819ec2	58	if (ret >= 0) {
cec6b55d JA	59	io_u->resid = io_u->xfer_buflen - ret;
cec6b55d JA	60	io_u->error = 0;
36167d82	61	return FIO_Q_COMPLETED;
2866c82d JA	62	} else
	63	io_u->error = errno;
	64	}
	65
36167d82	66	if (io_u->error)
e1161c32	67	td_verror(td, io_u->error, "xfer");
2866c82d	68
36167d82	69	return FIO_Q_COMPLETED;
2866c82d JA	70	}
2866c82d JA	71
07fc0acd JA	72	#ifdef CONFIG_PWRITEV
	73	static int fio_pvsyncio_queue(struct thread_data td, struct io_u io_u)
	74	{
	75	struct syncio_data *sd = td->io_ops->data;
	76	struct iovec *iov = &sd->iovecs[0];
	77	struct fio_file *f = io_u->file;
	78	int ret;
	79
	80	fio_ro_check(td, io_u);
	81
	82	iov->iov_base = io_u->xfer_buf;
	83	iov->iov_len = io_u->xfer_buflen;
	84
	85	if (io_u->ddir == DDIR_READ)
	86	ret = preadv(f->fd, iov, 1, io_u->offset);
	87	else if (io_u->ddir == DDIR_WRITE)
	88	ret = pwritev(f->fd, iov, 1, io_u->offset);
	89	else if (io_u->ddir == DDIR_TRIM) {
	90	do_io_u_trim(td, io_u);
	91	return FIO_Q_COMPLETED;
	92	} else
	93	ret = do_io_u_sync(td, io_u);
	94
	95	return fio_io_end(td, io_u, ret);
	96	}
	97	#endif
	98
2bd3eabc	99	static int fio_psyncio_queue(struct thread_data td, struct io_u io_u)
a31041ea	100	{
2bd3eabc JA	101	struct fio_file *f = io_u->file;
	102	int ret;
	103
	104	fio_ro_check(td, io_u);
	105
	106	if (io_u->ddir == DDIR_READ)
	107	ret = pread(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
	108	else if (io_u->ddir == DDIR_WRITE)
	109	ret = pwrite(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
6eaf09d6 SL	110	else if (io_u->ddir == DDIR_TRIM) {
	111	do_io_u_trim(td, io_u);
	112	return FIO_Q_COMPLETED;
	113	} else
0a28ecda	114	ret = do_io_u_sync(td, io_u);
2bd3eabc JA	115
	116	return fio_io_end(td, io_u, ret);
	117	}
	118
	119	static int fio_syncio_queue(struct thread_data td, struct io_u io_u)
	120	{
	121	struct fio_file *f = io_u->file;
	122	int ret;
	123
	124	fio_ro_check(td, io_u);
	125
	126	if (io_u->ddir == DDIR_READ)
	127	ret = read(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
	128	else if (io_u->ddir == DDIR_WRITE)
	129	ret = write(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
6eaf09d6 SL	130	else if (io_u->ddir == DDIR_TRIM) {
	131	do_io_u_trim(td, io_u);
	132	return FIO_Q_COMPLETED;
	133	} else
0a28ecda	134	ret = do_io_u_sync(td, io_u);
2bd3eabc JA	135
2bd3eabc JA	136	return fio_io_end(td, io_u, ret);
a31041ea	137	}
a31041ea	138
1d2af02a JA	139	static int fio_vsyncio_getevents(struct thread_data *td, unsigned int min,
	140	unsigned int max,
	141	struct timespec fio_unused *t)
	142	{
	143	struct syncio_data *sd = td->io_ops->data;
	144	int ret;
	145
	146	if (min) {
e51cf72c JA	147	ret = sd->events;
e51cf72c JA	148	sd->events = 0;
1d2af02a JA	149	} else
	150	ret = 0;
	151
	152	dprint(FD_IO, "vsyncio_getevents: min=%d,max=%d: %d\n", min, max, ret);
	153	return ret;
	154	}
	155
	156	static struct io_u fio_vsyncio_event(struct thread_data td, int event)
	157	{
	158	struct syncio_data *sd = td->io_ops->data;
	159
	160	return sd->io_us[event];
	161	}
	162
	163	static int fio_vsyncio_append(struct thread_data td, struct io_u io_u)
	164	{
	165	struct syncio_data *sd = td->io_ops->data;
	166
5f9099ea	167	if (ddir_sync(io_u->ddir))
1d2af02a JA	168	return 0;
	169
	170	if (io_u->offset == sd->last_offset && io_u->file == sd->last_file &&
	171	io_u->ddir == sd->last_ddir)
	172	return 1;
	173
	174	return 0;
	175	}
	176
	177	static void fio_vsyncio_set_iov(struct syncio_data sd, struct io_u io_u,
2b13e716	178	int idx)
1d2af02a	179	{
2b13e716 JA	180	sd->io_us[idx] = io_u;
	181	sd->iovecs[idx].iov_base = io_u->xfer_buf;
	182	sd->iovecs[idx].iov_len = io_u->xfer_buflen;
1d2af02a JA	183	sd->last_offset = io_u->offset + io_u->xfer_buflen;
	184	sd->last_file = io_u->file;
	185	sd->last_ddir = io_u->ddir;
	186	sd->queued_bytes += io_u->xfer_buflen;
	187	sd->queued++;
	188	}
	189
	190	static int fio_vsyncio_queue(struct thread_data td, struct io_u io_u)
	191	{
	192	struct syncio_data *sd = td->io_ops->data;
	193
	194	fio_ro_check(td, io_u);
	195
	196	if (!fio_vsyncio_append(td, io_u)) {
	197	dprint(FD_IO, "vsyncio_queue: no append (%d)\n", sd->queued);
	198	/*
	199	* If we can't append and have stuff queued, tell fio to
	200	* commit those first and then retry this io
	201	*/
	202	if (sd->queued)
	203	return FIO_Q_BUSY;
0a28ecda JA	204	if (ddir_sync(io_u->ddir)) {
	205	int ret = do_io_u_sync(td, io_u);
	206
	207	return fio_io_end(td, io_u, ret);
	208	}
cc9159c3	209
1d2af02a JA	210	sd->queued = 0;
	211	sd->queued_bytes = 0;
	212	fio_vsyncio_set_iov(sd, io_u, 0);
	213	} else {
	214	if (sd->queued == td->o.iodepth) {
	215	dprint(FD_IO, "vsyncio_queue: max depth %d\n", sd->queued);
	216	return FIO_Q_BUSY;
	217	}
	218
	219	dprint(FD_IO, "vsyncio_queue: append\n");
	220	fio_vsyncio_set_iov(sd, io_u, sd->queued);
	221	}
	222
	223	dprint(FD_IO, "vsyncio_queue: depth now %d\n", sd->queued);
	224	return FIO_Q_QUEUED;
	225	}
	226
	227	/*
	228	* Check that we transferred all bytes, or saw an error, etc
	229	*/
	230	static int fio_vsyncio_end(struct thread_data *td, ssize_t bytes)
	231	{
	232	struct syncio_data *sd = td->io_ops->data;
	233	struct io_u *io_u;
	234	unsigned int i;
	235	int err;
	236
	237	/*
	238	* transferred everything, perfect
	239	*/
	240	if (bytes == sd->queued_bytes)
	241	return 0;
	242
	243	err = errno;
	244	for (i = 0; i < sd->queued; i++) {
	245	io_u = sd->io_us[i];
	246
	247	if (bytes == -1) {
	248	io_u->error = err;
	249	} else {
	250	unsigned int this_io;
	251
	252	this_io = bytes;
	253	if (this_io > io_u->xfer_buflen)
	254	this_io = io_u->xfer_buflen;
	255
	256	io_u->resid = io_u->xfer_buflen - this_io;
	257	io_u->error = 0;
	258	bytes -= this_io;
	259	}
	260	}
	261
	262	if (bytes == -1) {
	263	td_verror(td, err, "xfer vsync");
	264	return -err;
	265	}
	266
	267	return 0;
	268	}
	269
	270	static int fio_vsyncio_commit(struct thread_data *td)
	271	{
	272	struct syncio_data *sd = td->io_ops->data;
	273	struct fio_file *f;
274	ssize_t ret;
275
276	if (!sd->queued)
277	return 0;
278
838bc709	279	io_u_mark_submit(td, sd->queued);
1d2af02a JA	280	f = sd->last_file;
	281
	282	if (lseek(f->fd, sd->io_us[0]->offset, SEEK_SET) == -1) {
	283	int err = -errno;
	284
	285	td_verror(td, errno, "lseek");
	286	return err;
	287	}
	288
	289	if (sd->last_ddir == DDIR_READ)
	290	ret = readv(f->fd, sd->iovecs, sd->queued);
	291	else
	292	ret = writev(f->fd, sd->iovecs, sd->queued);
	293
	294	dprint(FD_IO, "vsyncio_commit: %d\n", (int) ret);
e51cf72c JA	295	sd->events = sd->queued;
e51cf72c JA	296	sd->queued = 0;
1d2af02a JA	297	return fio_vsyncio_end(td, ret);
	298	}
	299
	300	static int fio_vsyncio_init(struct thread_data *td)
	301	{
	302	struct syncio_data *sd;
	303
	304	sd = malloc(sizeof(*sd));
	305	memset(sd, 0, sizeof(*sd));
	306	sd->last_offset = -1ULL;
	307	sd->iovecs = malloc(td->o.iodepth * sizeof(struct iovec));
	308	sd->io_us = malloc(td->o.iodepth * sizeof(struct io_u *));
	309
	310	td->io_ops->data = sd;
	311	return 0;
	312	}
	313
	314	static void fio_vsyncio_cleanup(struct thread_data *td)
	315	{
	316	struct syncio_data *sd = td->io_ops->data;
	317
	318	free(sd->iovecs);
	319	free(sd->io_us);
	320	free(sd);
1d2af02a JA	321	}
1d2af02a JA	322
a31041ea	323	static struct ioengine_ops ioengine_rw = {
2866c82d JA	324	.name = "sync",
2866c82d JA	325	.version = FIO_IOOPS_VERSION,
2866c82d JA	326	.prep = fio_syncio_prep,
2866c82d JA	327	.queue = fio_syncio_queue,
b5af8293 JA	328	.open_file = generic_open_file,
b5af8293 JA	329	.close_file = generic_close_file,
df9c26b1	330	.get_file_size = generic_get_file_size,
2866c82d JA	331	.flags = FIO_SYNCIO,
2866c82d JA	332	};
5f350952	333
a31041ea	334	static struct ioengine_ops ioengine_prw = {
	335	.name = "psync",
	336	.version = FIO_IOOPS_VERSION,
2bd3eabc	337	.queue = fio_psyncio_queue,
a31041ea	338	.open_file = generic_open_file,
a31041ea	339	.close_file = generic_close_file,
df9c26b1	340	.get_file_size = generic_get_file_size,
a31041ea	341	.flags = FIO_SYNCIO,
	342	};
	343
1d2af02a JA	344	static struct ioengine_ops ioengine_vrw = {
	345	.name = "vsync",
	346	.version = FIO_IOOPS_VERSION,
	347	.init = fio_vsyncio_init,
	348	.cleanup = fio_vsyncio_cleanup,
	349	.queue = fio_vsyncio_queue,
	350	.commit = fio_vsyncio_commit,
	351	.event = fio_vsyncio_event,
	352	.getevents = fio_vsyncio_getevents,
	353	.open_file = generic_open_file,
	354	.close_file = generic_close_file,
df9c26b1	355	.get_file_size = generic_get_file_size,
1d2af02a JA	356	.flags = FIO_SYNCIO,
	357	};
	358
07fc0acd JA	359	#ifdef CONFIG_PWRITEV
	360	static struct ioengine_ops ioengine_pvrw = {
	361	.name = "pvsync",
	362	.version = FIO_IOOPS_VERSION,
	363	.init = fio_vsyncio_init,
	364	.cleanup = fio_vsyncio_cleanup,
	365	.queue = fio_pvsyncio_queue,
	366	.open_file = generic_open_file,
	367	.close_file = generic_close_file,
	368	.get_file_size = generic_get_file_size,
	369	.flags = FIO_SYNCIO,
	370	};
	371	#endif
	372
5f350952 JA	373	static void fio_init fio_syncio_register(void)
5f350952 JA	374	{
a31041ea	375	register_ioengine(&ioengine_rw);
a31041ea	376	register_ioengine(&ioengine_prw);
1d2af02a	377	register_ioengine(&ioengine_vrw);
9a0ced5a	378	#ifdef CONFIG_PWRITEV
07fc0acd	379	register_ioengine(&ioengine_pvrw);
9a0ced5a	380	#endif
5f350952 JA	381	}
	382
	383	static void fio_exit fio_syncio_unregister(void)
	384	{
a31041ea	385	unregister_ioengine(&ioengine_rw);
a31041ea	386	unregister_ioengine(&ioengine_prw);
1d2af02a	387	unregister_ioengine(&ioengine_vrw);
9a0ced5a	388	#ifdef CONFIG_PWRITEV
07fc0acd	389	unregister_ioengine(&ioengine_pvrw);
9a0ced5a	390	#endif
5f350952	391	}