[fio.git] / engines / fileoperations.c

/*
 * file/directory operations engine
 *
 * IO engine that doesn't do any IO, just operates files/directories
 * and tracks the latency of the operation.
 */
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "../fio.h"
#include "../optgroup.h"
#include "../oslib/statx.h"

enum fio_engine {
	UNKNOWN_OP_ENGINE = 0,
	FILE_OP_ENGINE = 1,
	DIR_OP_ENGINE = 2,
};

struct fc_data {
	enum fio_ddir stat_ddir;
	enum fio_engine op_engine;
};

struct filestat_options {
	void *pad;
	unsigned int stat_type;
};

enum {
	FIO_FILESTAT_STAT	= 1,
	FIO_FILESTAT_LSTAT	= 2,
	FIO_FILESTAT_STATX	= 3,
};

static struct fio_option options[] = {
	{
		.name	= "stat_type",
		.lname	= "stat_type",
		.type	= FIO_OPT_STR,
		.off1	= offsetof(struct filestat_options, stat_type),
		.help	= "Specify stat system call type to measure lookup/getattr performance",
		.def	= "stat",
		.posval = {
			  { .ival = "stat",
			    .oval = FIO_FILESTAT_STAT,
			    .help = "Use stat(2)",
			  },
			  { .ival = "lstat",
			    .oval = FIO_FILESTAT_LSTAT,
			    .help = "Use lstat(2)",
			  },
			  { .ival = "statx",
			    .oval = FIO_FILESTAT_STATX,
			    .help = "Use statx(2) if exists",
			  },
		},
		.category = FIO_OPT_C_ENGINE,
		.group	= FIO_OPT_G_FILESTAT,
	},
	{
		.name	= NULL,
	},
};

static int setup_dirs(struct thread_data *td)
{
	int ret = 0;
	int i;
	struct fio_file *f;

	for_each_file(td, f, i) {
		dprint(FD_FILE, "setup directory %s\n", f->file_name);
		ret = fio_mkdir(f->file_name, 0700);
		if ((ret && errno != EEXIST)) {
			log_err("create directory %s failed with %d\n",
				f->file_name, errno);
			break;
		}
		ret = 0;
	}
	return ret;
}

static int open_file(struct thread_data *td, struct fio_file *f)
{
	struct timespec start;
	int do_lat = !td->o.disable_lat;

	dprint(FD_FILE, "fd open %s\n", f->file_name);

	if (f->filetype != FIO_TYPE_FILE) {
		log_err("fio: only files are supported\n");
		return 1;
	}
	if (!strcmp(f->file_name, "-")) {
		log_err("fio: can't read/write to stdin/out\n");
		return 1;
	}

	if (do_lat)
		fio_gettime(&start, NULL);

	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
		f->fd = open(f->file_name, O_CREAT|O_RDWR, 0600);
	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
		f->fd = fio_mkdir(f->file_name, S_IFDIR);
	else {
		log_err("fio: unknown file/directory operation engine\n");
		return 1;
	}

	if (f->fd == -1) {
		char buf[FIO_VERROR_SIZE];
		int e = errno;

		snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
		td_verror(td, e, buf);
		return 1;
	}

	if (do_lat) {
		struct fc_data *data = td->io_ops_data;
		uint64_t nsec;

		nsec = ntime_since_now(&start);
		add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	}

	return 0;
}

static int stat_file(struct thread_data *td, struct fio_file *f)
{
	struct filestat_options *o = td->eo;
	struct timespec start;
	int do_lat = !td->o.disable_lat;
	struct stat statbuf;
#ifndef WIN32
	struct statx statxbuf;
	char *abspath;
#endif
	int ret;

	dprint(FD_FILE, "fd stat %s\n", f->file_name);

	if (f->filetype != FIO_TYPE_FILE) {
		log_err("fio: only files are supported\n");
		return 1;
	}
	if (!strcmp(f->file_name, "-")) {
		log_err("fio: can't read/write to stdin/out\n");
		return 1;
	}

	if (do_lat)
		fio_gettime(&start, NULL);

	switch (o->stat_type) {
	case FIO_FILESTAT_STAT:
		ret = stat(f->file_name, &statbuf);
		break;
	case FIO_FILESTAT_LSTAT:
		ret = lstat(f->file_name, &statbuf);
		break;
	case FIO_FILESTAT_STATX:
#ifndef WIN32
		abspath = realpath(f->file_name, NULL);
		if (abspath) {
			ret = statx(-1, abspath, 0, STATX_ALL, &statxbuf);
			free(abspath);
		} else
			ret = -1;
#else
		ret = -1;
#endif
		break;
	default:
		ret = -1;
		break;
	}

	if (ret == -1) {
		char buf[FIO_VERROR_SIZE];
		int e = errno;

		snprintf(buf, sizeof(buf), "stat(%s) type=%u", f->file_name,
			o->stat_type);
		td_verror(td, e, buf);
		return 1;
	}

	if (do_lat) {
		struct fc_data *data = td->io_ops_data;
		uint64_t nsec;

		nsec = ntime_since_now(&start);
		add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	}

	return 0;
}

static int delete_file(struct thread_data *td, struct fio_file *f)
{
	struct timespec start;
	int do_lat = !td->o.disable_lat;
	int ret;

	dprint(FD_FILE, "fd delete %s\n", f->file_name);

	if (f->filetype != FIO_TYPE_FILE) {
		log_err("fio: only files are supported\n");
		return 1;
	}
	if (!strcmp(f->file_name, "-")) {
		log_err("fio: can't read/write to stdin/out\n");
		return 1;
	}

	if (do_lat)
		fio_gettime(&start, NULL);

	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
		ret = unlink(f->file_name);
	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
		ret = rmdir(f->file_name);
	else {
		log_err("fio: unknown file/directory operation engine\n");
		return 1;
	}

	if (ret == -1) {
		char buf[FIO_VERROR_SIZE];
		int e = errno;

		snprintf(buf, sizeof(buf), "delete(%s)", f->file_name);
		td_verror(td, e, buf);
		return 1;
	}

	if (do_lat) {
		struct fc_data *data = td->io_ops_data;
		uint64_t nsec;

		nsec = ntime_since_now(&start);
		add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	}

	return 0;
}

static int invalidate_do_nothing(struct thread_data *td, struct fio_file *f)
{
	/* do nothing because file not opened */
	return 0;
}

static enum fio_q_status queue_io(struct thread_data *td, struct io_u *io_u)
{
	return FIO_Q_COMPLETED;
}

/*
 * Ensure that we at least have a block size worth of IO to do for each
 * file. If the job file has td->o.size < nr_files * block_size, then
 * fio won't do anything.
 */
static int get_file_size(struct thread_data *td, struct fio_file *f)
{
	f->real_file_size = td_min_bs(td);
	return 0;
}

static int init(struct thread_data *td)
{
	struct fc_data *data;

	data = calloc(1, sizeof(*data));

	if (td_read(td))
		data->stat_ddir = DDIR_READ;
	else if (td_write(td))
		data->stat_ddir = DDIR_WRITE;

	data->op_engine = UNKNOWN_OP_ENGINE;

	if (!strncmp(td->o.ioengine, "file", 4)) {
		data->op_engine = FILE_OP_ENGINE;
		dprint(FD_FILE, "Operate engine type: file\n");
	}
	if (!strncmp(td->o.ioengine, "dir", 3)) {
		data->op_engine = DIR_OP_ENGINE;
		dprint(FD_FILE, "Operate engine type: directory\n");
	}

	td->io_ops_data = data;
	return 0;
}

static void cleanup(struct thread_data *td)
{
	struct fc_data *data = td->io_ops_data;

	free(data);
}

static int remove_dir(struct thread_data *td, struct fio_file *f)
{
	dprint(FD_FILE, "remove directory %s\n", f->file_name);
	return rmdir(f->file_name);
}

static struct ioengine_ops ioengine_filecreate = {
	.name		= "filecreate",
	.version	= FIO_IOOPS_VERSION,
	.init		= init,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.get_file_size	= get_file_size,
	.open_file	= open_file,
	.close_file	= generic_close_file,
	.flags		= FIO_DISKLESSIO | FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
};

static struct ioengine_ops ioengine_filestat = {
	.name		= "filestat",
	.version	= FIO_IOOPS_VERSION,
	.init		= init,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.invalidate	= invalidate_do_nothing,
	.get_file_size	= generic_get_file_size,
	.open_file	= stat_file,
	.flags		=  FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
	.options	= options,
	.option_struct_size = sizeof(struct filestat_options),
};

static struct ioengine_ops ioengine_filedelete = {
	.name		= "filedelete",
	.version	= FIO_IOOPS_VERSION,
	.init		= init,
	.invalidate	= invalidate_do_nothing,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.get_file_size	= generic_get_file_size,
	.open_file	= delete_file,
	.flags		=  FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
};

static struct ioengine_ops ioengine_dircreate = {
	.name		= "dircreate",
	.version	= FIO_IOOPS_VERSION,
	.init		= init,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.get_file_size	= get_file_size,
	.open_file	= open_file,
	.close_file	= generic_close_file,
	.unlink_file    = remove_dir,
	.flags		= FIO_DISKLESSIO | FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
};

static struct ioengine_ops ioengine_dirstat = {
	.name		= "dirstat",
	.version	= FIO_IOOPS_VERSION,
	.setup		= setup_dirs,
	.init		= init,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.invalidate	= invalidate_do_nothing,
	.get_file_size	= generic_get_file_size,
	.open_file	= stat_file,
	.unlink_file	= remove_dir,
	.flags		=  FIO_DISKLESSIO | FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
	.options	= options,
	.option_struct_size = sizeof(struct filestat_options),
};

static struct ioengine_ops ioengine_dirdelete = {
	.name		= "dirdelete",
	.version	= FIO_IOOPS_VERSION,
	.setup		= setup_dirs,
	.init		= init,
	.invalidate	= invalidate_do_nothing,
	.cleanup	= cleanup,
	.queue		= queue_io,
	.get_file_size	= get_file_size,
	.open_file	= delete_file,
	.unlink_file	= remove_dir,
	.flags		= FIO_DISKLESSIO | FIO_SYNCIO | FIO_FAKEIO |
				FIO_NOSTATS | FIO_NOFILEHASH,
};

static void fio_init fio_fileoperations_register(void)
{
	register_ioengine(&ioengine_filecreate);
	register_ioengine(&ioengine_filestat);
	register_ioengine(&ioengine_filedelete);
	register_ioengine(&ioengine_dircreate);
	register_ioengine(&ioengine_dirstat);
	register_ioengine(&ioengine_dirdelete);
}

static void fio_exit fio_fileoperations_unregister(void)
{
	unregister_ioengine(&ioengine_filecreate);
	unregister_ioengine(&ioengine_filestat);
	unregister_ioengine(&ioengine_filedelete);
	unregister_ioengine(&ioengine_dircreate);
	unregister_ioengine(&ioengine_dirstat);
	unregister_ioengine(&ioengine_dirdelete);
}
Commit	Line	Data
910c72df	1	/*
a7a817a2	2	* file/directory operations engine
910c72df	3	*
a7a817a2	4	* IO engine that doesn't do any IO, just operates files/directories
a7a817a2	5	* and tracks the latency of the operation.
910c72df FS	6	*/
	7	#include <stdio.h>
	8	#include <stdlib.h>
	9	#include <fcntl.h>
	10	#include <errno.h>
	11	#include <sys/types.h>
	12	#include <sys/stat.h>
	13	#include <unistd.h>
	14	#include "../fio.h"
	15	#include "../optgroup.h"
	16	#include "../oslib/statx.h"
	17
a7a817a2	18	enum fio_engine {
	19	UNKNOWN_OP_ENGINE = 0,
	20	FILE_OP_ENGINE = 1,
	21	DIR_OP_ENGINE = 2,
	22	};
910c72df FS	23
	24	struct fc_data {
	25	enum fio_ddir stat_ddir;
a7a817a2	26	enum fio_engine op_engine;
910c72df FS	27	};
	28
	29	struct filestat_options {
	30	void *pad;
	31	unsigned int stat_type;
	32	};
	33
	34	enum {
	35	FIO_FILESTAT_STAT = 1,
	36	FIO_FILESTAT_LSTAT = 2,
	37	FIO_FILESTAT_STATX = 3,
	38	};
	39
	40	static struct fio_option options[] = {
	41	{
	42	.name = "stat_type",
	43	.lname = "stat_type",
	44	.type = FIO_OPT_STR,
	45	.off1 = offsetof(struct filestat_options, stat_type),
	46	.help = "Specify stat system call type to measure lookup/getattr performance",
	47	.def = "stat",
	48	.posval = {
	49	{ .ival = "stat",
	50	.oval = FIO_FILESTAT_STAT,
	51	.help = "Use stat(2)",
	52	},
	53	{ .ival = "lstat",
	54	.oval = FIO_FILESTAT_LSTAT,
	55	.help = "Use lstat(2)",
	56	},
	57	{ .ival = "statx",
	58	.oval = FIO_FILESTAT_STATX,
	59	.help = "Use statx(2) if exists",
	60	},
	61	},
	62	.category = FIO_OPT_C_ENGINE,
	63	.group = FIO_OPT_G_FILESTAT,
	64	},
	65	{
	66	.name = NULL,
	67	},
	68	};
	69
a7a817a2	70	static int setup_dirs(struct thread_data *td)
	71	{
	72	int ret = 0;
	73	int i;
	74	struct fio_file *f;
	75
	76	for_each_file(td, f, i) {
	77	dprint(FD_FILE, "setup directory %s\n", f->file_name);
	78	ret = fio_mkdir(f->file_name, 0700);
	79	if ((ret && errno != EEXIST)) {
	80	log_err("create directory %s failed with %d\n",
	81	f->file_name, errno);
	82	break;
	83	}
	84	ret = 0;
	85	}
	86	return ret;
	87	}
	88
910c72df FS	89	static int open_file(struct thread_data td, struct fio_file f)
	90	{
	91	struct timespec start;
	92	int do_lat = !td->o.disable_lat;
	93
	94	dprint(FD_FILE, "fd open %s\n", f->file_name);
	95
	96	if (f->filetype != FIO_TYPE_FILE) {
	97	log_err("fio: only files are supported\n");
	98	return 1;
	99	}
	100	if (!strcmp(f->file_name, "-")) {
	101	log_err("fio: can't read/write to stdin/out\n");
	102	return 1;
	103	}
	104
	105	if (do_lat)
	106	fio_gettime(&start, NULL);
	107
a7a817a2	108	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
	109	f->fd = open(f->file_name, O_CREAT\|O_RDWR, 0600);
	110	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
	111	f->fd = fio_mkdir(f->file_name, S_IFDIR);
	112	else {
	113	log_err("fio: unknown file/directory operation engine\n");
	114	return 1;
	115	}
910c72df FS	116
	117	if (f->fd == -1) {
	118	char buf[FIO_VERROR_SIZE];
	119	int e = errno;
	120
	121	snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
	122	td_verror(td, e, buf);
	123	return 1;
	124	}
	125
	126	if (do_lat) {
	127	struct fc_data *data = td->io_ops_data;
	128	uint64_t nsec;
	129
	130	nsec = ntime_since_now(&start);
	131	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	132	}
	133
	134	return 0;
	135	}
	136
	137	static int stat_file(struct thread_data td, struct fio_file f)
	138	{
	139	struct filestat_options *o = td->eo;
	140	struct timespec start;
	141	int do_lat = !td->o.disable_lat;
	142	struct stat statbuf;
	143	#ifndef WIN32
	144	struct statx statxbuf;
	145	char *abspath;
	146	#endif
	147	int ret;
	148
	149	dprint(FD_FILE, "fd stat %s\n", f->file_name);
	150
	151	if (f->filetype != FIO_TYPE_FILE) {
	152	log_err("fio: only files are supported\n");
	153	return 1;
	154	}
	155	if (!strcmp(f->file_name, "-")) {
	156	log_err("fio: can't read/write to stdin/out\n");
	157	return 1;
	158	}
	159
	160	if (do_lat)
	161	fio_gettime(&start, NULL);
	162
	163	switch (o->stat_type) {
	164	case FIO_FILESTAT_STAT:
	165	ret = stat(f->file_name, &statbuf);
	166	break;
	167	case FIO_FILESTAT_LSTAT:
	168	ret = lstat(f->file_name, &statbuf);
	169	break;
	170	case FIO_FILESTAT_STATX:
	171	#ifndef WIN32
	172	abspath = realpath(f->file_name, NULL);
	173	if (abspath) {
	174	ret = statx(-1, abspath, 0, STATX_ALL, &statxbuf);
	175	free(abspath);
	176	} else
	177	ret = -1;
	178	#else
	179	ret = -1;
180	#endif
181	break;
182	default:
183	ret = -1;
184	break;
185	}
186
187	if (ret == -1) {
188	char buf[FIO_VERROR_SIZE];
189	int e = errno;
190
191	snprintf(buf, sizeof(buf), "stat(%s) type=%u", f->file_name,
192	o->stat_type);
193	td_verror(td, e, buf);
194	return 1;
195	}
196
197	if (do_lat) {
198	struct fc_data *data = td->io_ops_data;
199	uint64_t nsec;
200
201	nsec = ntime_since_now(&start);
202	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
203	}
204
205	return 0;
206	}
207
910c72df FS	208	static int delete_file(struct thread_data td, struct fio_file f)
	209	{
	210	struct timespec start;
	211	int do_lat = !td->o.disable_lat;
	212	int ret;
	213
	214	dprint(FD_FILE, "fd delete %s\n", f->file_name);
	215
	216	if (f->filetype != FIO_TYPE_FILE) {
	217	log_err("fio: only files are supported\n");
	218	return 1;
	219	}
	220	if (!strcmp(f->file_name, "-")) {
	221	log_err("fio: can't read/write to stdin/out\n");
	222	return 1;
	223	}
	224
	225	if (do_lat)
	226	fio_gettime(&start, NULL);
	227
a7a817a2	228	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
	229	ret = unlink(f->file_name);
	230	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
	231	ret = rmdir(f->file_name);
	232	else {
	233	log_err("fio: unknown file/directory operation engine\n");
	234	return 1;
	235	}
	236
910c72df FS	237	if (ret == -1) {
	238	char buf[FIO_VERROR_SIZE];
	239	int e = errno;
	240
	241	snprintf(buf, sizeof(buf), "delete(%s)", f->file_name);
	242	td_verror(td, e, buf);
	243	return 1;
	244	}
	245
	246	if (do_lat) {
	247	struct fc_data *data = td->io_ops_data;
	248	uint64_t nsec;
	249
	250	nsec = ntime_since_now(&start);
	251	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	252	}
	253
	254	return 0;
	255	}
	256
	257	static int invalidate_do_nothing(struct thread_data td, struct fio_file f)
	258	{
	259	/* do nothing because file not opened */
	260	return 0;
	261	}
	262
	263	static enum fio_q_status queue_io(struct thread_data td, struct io_u io_u)
	264	{
	265	return FIO_Q_COMPLETED;
	266	}
	267
	268	/*
	269	* Ensure that we at least have a block size worth of IO to do for each
	270	* file. If the job file has td->o.size < nr_files * block_size, then
	271	* fio won't do anything.
	272	*/
	273	static int get_file_size(struct thread_data td, struct fio_file f)
	274	{
	275	f->real_file_size = td_min_bs(td);
	276	return 0;
	277	}
	278
	279	static int init(struct thread_data *td)
	280	{
	281	struct fc_data *data;
	282
	283	data = calloc(1, sizeof(*data));
	284
	285	if (td_read(td))
	286	data->stat_ddir = DDIR_READ;
	287	else if (td_write(td))
	288	data->stat_ddir = DDIR_WRITE;
	289
a7a817a2	290	data->op_engine = UNKNOWN_OP_ENGINE;
	291
	292	if (!strncmp(td->o.ioengine, "file", 4)) {
	293	data->op_engine = FILE_OP_ENGINE;
	294	dprint(FD_FILE, "Operate engine type: file\n");
	295	}
	296	if (!strncmp(td->o.ioengine, "dir", 3)) {
	297	data->op_engine = DIR_OP_ENGINE;
	298	dprint(FD_FILE, "Operate engine type: directory\n");
	299	}
	300
910c72df FS	301	td->io_ops_data = data;
	302	return 0;
	303	}
	304
	305	static void cleanup(struct thread_data *td)
	306	{
	307	struct fc_data *data = td->io_ops_data;
	308
	309	free(data);
	310	}
	311
a7a817a2	312	static int remove_dir(struct thread_data td, struct fio_file f)
	313	{
	314	dprint(FD_FILE, "remove directory %s\n", f->file_name);
	315	return rmdir(f->file_name);
	316	}
	317
910c72df FS	318	static struct ioengine_ops ioengine_filecreate = {
	319	.name = "filecreate",
	320	.version = FIO_IOOPS_VERSION,
	321	.init = init,
	322	.cleanup = cleanup,
	323	.queue = queue_io,
	324	.get_file_size = get_file_size,
	325	.open_file = open_file,
	326	.close_file = generic_close_file,
	327	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	328	FIO_NOSTATS \| FIO_NOFILEHASH,
	329	};
	330
	331	static struct ioengine_ops ioengine_filestat = {
	332	.name = "filestat",
	333	.version = FIO_IOOPS_VERSION,
	334	.init = init,
	335	.cleanup = cleanup,
	336	.queue = queue_io,
	337	.invalidate = invalidate_do_nothing,
	338	.get_file_size = generic_get_file_size,
	339	.open_file = stat_file,
	340	.flags = FIO_SYNCIO \| FIO_FAKEIO \|
	341	FIO_NOSTATS \| FIO_NOFILEHASH,
	342	.options = options,
	343	.option_struct_size = sizeof(struct filestat_options),
	344	};
	345
	346	static struct ioengine_ops ioengine_filedelete = {
	347	.name = "filedelete",
	348	.version = FIO_IOOPS_VERSION,
	349	.init = init,
	350	.invalidate = invalidate_do_nothing,
	351	.cleanup = cleanup,
	352	.queue = queue_io,
	353	.get_file_size = generic_get_file_size,
	354	.open_file = delete_file,
	355	.flags = FIO_SYNCIO \| FIO_FAKEIO \|
	356	FIO_NOSTATS \| FIO_NOFILEHASH,
	357	};
	358
a7a817a2	359	static struct ioengine_ops ioengine_dircreate = {
	360	.name = "dircreate",
	361	.version = FIO_IOOPS_VERSION,
	362	.init = init,
	363	.cleanup = cleanup,
	364	.queue = queue_io,
	365	.get_file_size = get_file_size,
	366	.open_file = open_file,
	367	.close_file = generic_close_file,
	368	.unlink_file = remove_dir,
	369	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	370	FIO_NOSTATS \| FIO_NOFILEHASH,
	371	};
	372
	373	static struct ioengine_ops ioengine_dirstat = {
	374	.name = "dirstat",
	375	.version = FIO_IOOPS_VERSION,
	376	.setup = setup_dirs,
	377	.init = init,
	378	.cleanup = cleanup,
	379	.queue = queue_io,
	380	.invalidate = invalidate_do_nothing,
	381	.get_file_size = generic_get_file_size,
	382	.open_file = stat_file,
	383	.unlink_file = remove_dir,
	384	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	385	FIO_NOSTATS \| FIO_NOFILEHASH,
	386	.options = options,
	387	.option_struct_size = sizeof(struct filestat_options),
	388	};
	389
	390	static struct ioengine_ops ioengine_dirdelete = {
	391	.name = "dirdelete",
	392	.version = FIO_IOOPS_VERSION,
	393	.setup = setup_dirs,
	394	.init = init,
	395	.invalidate = invalidate_do_nothing,
	396	.cleanup = cleanup,
	397	.queue = queue_io,
	398	.get_file_size = get_file_size,
	399	.open_file = delete_file,
	400	.unlink_file = remove_dir,
	401	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	402	FIO_NOSTATS \| FIO_NOFILEHASH,
	403	};
	404
910c72df FS	405	static void fio_init fio_fileoperations_register(void)
	406	{
	407	register_ioengine(&ioengine_filecreate);
	408	register_ioengine(&ioengine_filestat);
	409	register_ioengine(&ioengine_filedelete);
a7a817a2	410	register_ioengine(&ioengine_dircreate);
	411	register_ioengine(&ioengine_dirstat);
	412	register_ioengine(&ioengine_dirdelete);
910c72df FS	413	}
	414
	415	static void fio_exit fio_fileoperations_unregister(void)
	416	{
	417	unregister_ioengine(&ioengine_filecreate);
	418	unregister_ioengine(&ioengine_filestat);
	419	unregister_ioengine(&ioengine_filedelete);
a7a817a2	420	unregister_ioengine(&ioengine_dircreate);
	421	unregister_ioengine(&ioengine_dirstat);
	422	unregister_ioengine(&ioengine_dirdelete);
910c72df	423	}