[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
	89
910c72df FS	90
	91	static int open_file(struct thread_data td, struct fio_file f)
	92	{
	93	struct timespec start;
	94	int do_lat = !td->o.disable_lat;
	95
	96	dprint(FD_FILE, "fd open %s\n", f->file_name);
	97
	98	if (f->filetype != FIO_TYPE_FILE) {
	99	log_err("fio: only files are supported\n");
	100	return 1;
	101	}
	102	if (!strcmp(f->file_name, "-")) {
	103	log_err("fio: can't read/write to stdin/out\n");
	104	return 1;
	105	}
	106
	107	if (do_lat)
	108	fio_gettime(&start, NULL);
	109
a7a817a2	110	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
	111	f->fd = open(f->file_name, O_CREAT\|O_RDWR, 0600);
	112	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
	113	f->fd = fio_mkdir(f->file_name, S_IFDIR);
	114	else {
	115	log_err("fio: unknown file/directory operation engine\n");
	116	return 1;
	117	}
910c72df FS	118
	119	if (f->fd == -1) {
	120	char buf[FIO_VERROR_SIZE];
	121	int e = errno;
	122
	123	snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
	124	td_verror(td, e, buf);
	125	return 1;
	126	}
	127
	128	if (do_lat) {
	129	struct fc_data *data = td->io_ops_data;
	130	uint64_t nsec;
	131
	132	nsec = ntime_since_now(&start);
	133	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	134	}
	135
	136	return 0;
	137	}
	138
	139	static int stat_file(struct thread_data td, struct fio_file f)
	140	{
	141	struct filestat_options *o = td->eo;
	142	struct timespec start;
	143	int do_lat = !td->o.disable_lat;
	144	struct stat statbuf;
	145	#ifndef WIN32
	146	struct statx statxbuf;
	147	char *abspath;
	148	#endif
	149	int ret;
	150
	151	dprint(FD_FILE, "fd stat %s\n", f->file_name);
	152
	153	if (f->filetype != FIO_TYPE_FILE) {
	154	log_err("fio: only files are supported\n");
	155	return 1;
	156	}
	157	if (!strcmp(f->file_name, "-")) {
	158	log_err("fio: can't read/write to stdin/out\n");
	159	return 1;
	160	}
	161
	162	if (do_lat)
	163	fio_gettime(&start, NULL);
	164
	165	switch (o->stat_type) {
	166	case FIO_FILESTAT_STAT:
	167	ret = stat(f->file_name, &statbuf);
	168	break;
	169	case FIO_FILESTAT_LSTAT:
	170	ret = lstat(f->file_name, &statbuf);
	171	break;
	172	case FIO_FILESTAT_STATX:
	173	#ifndef WIN32
	174	abspath = realpath(f->file_name, NULL);
	175	if (abspath) {
	176	ret = statx(-1, abspath, 0, STATX_ALL, &statxbuf);
	177	free(abspath);
	178	} else
	179	ret = -1;
	180	#else
	181	ret = -1;
182	#endif
183	break;
184	default:
185	ret = -1;
186	break;
187	}
188
189	if (ret == -1) {
190	char buf[FIO_VERROR_SIZE];
191	int e = errno;
192
193	snprintf(buf, sizeof(buf), "stat(%s) type=%u", f->file_name,
194	o->stat_type);
195	td_verror(td, e, buf);
196	return 1;
197	}
198
199	if (do_lat) {
200	struct fc_data *data = td->io_ops_data;
201	uint64_t nsec;
202
203	nsec = ntime_since_now(&start);
204	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
205	}
206
207	return 0;
208	}
209
210
211	static int delete_file(struct thread_data td, struct fio_file f)
212	{
213	struct timespec start;
214	int do_lat = !td->o.disable_lat;
215	int ret;
216
217	dprint(FD_FILE, "fd delete %s\n", f->file_name);
218
219	if (f->filetype != FIO_TYPE_FILE) {
220	log_err("fio: only files are supported\n");
221	return 1;
222	}
223	if (!strcmp(f->file_name, "-")) {
224	log_err("fio: can't read/write to stdin/out\n");
225	return 1;
226	}
227
228	if (do_lat)
229	fio_gettime(&start, NULL);
230
a7a817a2	231	if (((struct fc_data *)td->io_ops_data)->op_engine == FILE_OP_ENGINE)
	232	ret = unlink(f->file_name);
	233	else if (((struct fc_data *)td->io_ops_data)->op_engine == DIR_OP_ENGINE)
	234	ret = rmdir(f->file_name);
	235	else {
	236	log_err("fio: unknown file/directory operation engine\n");
	237	return 1;
	238	}
	239
	240
910c72df FS	241
	242	if (ret == -1) {
	243	char buf[FIO_VERROR_SIZE];
	244	int e = errno;
	245
	246	snprintf(buf, sizeof(buf), "delete(%s)", f->file_name);
	247	td_verror(td, e, buf);
	248	return 1;
	249	}
	250
	251	if (do_lat) {
	252	struct fc_data *data = td->io_ops_data;
	253	uint64_t nsec;
	254
	255	nsec = ntime_since_now(&start);
	256	add_clat_sample(td, data->stat_ddir, nsec, 0, 0, 0, 0);
	257	}
	258
	259	return 0;
	260	}
	261
	262	static int invalidate_do_nothing(struct thread_data td, struct fio_file f)
	263	{
	264	/* do nothing because file not opened */
	265	return 0;
	266	}
	267
	268	static enum fio_q_status queue_io(struct thread_data td, struct io_u io_u)
	269	{
	270	return FIO_Q_COMPLETED;
	271	}
	272
	273	/*
	274	* Ensure that we at least have a block size worth of IO to do for each
	275	* file. If the job file has td->o.size < nr_files * block_size, then
	276	* fio won't do anything.
	277	*/
	278	static int get_file_size(struct thread_data td, struct fio_file f)
	279	{
	280	f->real_file_size = td_min_bs(td);
	281	return 0;
	282	}
	283
	284	static int init(struct thread_data *td)
	285	{
	286	struct fc_data *data;
	287
	288	data = calloc(1, sizeof(*data));
	289
	290	if (td_read(td))
	291	data->stat_ddir = DDIR_READ;
	292	else if (td_write(td))
	293	data->stat_ddir = DDIR_WRITE;
	294
a7a817a2	295	data->op_engine = UNKNOWN_OP_ENGINE;
	296
	297	if (!strncmp(td->o.ioengine, "file", 4)) {
	298	data->op_engine = FILE_OP_ENGINE;
	299	dprint(FD_FILE, "Operate engine type: file\n");
	300	}
	301	if (!strncmp(td->o.ioengine, "dir", 3)) {
	302	data->op_engine = DIR_OP_ENGINE;
	303	dprint(FD_FILE, "Operate engine type: directory\n");
	304	}
	305
910c72df FS	306	td->io_ops_data = data;
	307	return 0;
	308	}
	309
	310	static void cleanup(struct thread_data *td)
	311	{
	312	struct fc_data *data = td->io_ops_data;
	313
	314	free(data);
	315	}
	316
a7a817a2	317	static int remove_dir(struct thread_data td, struct fio_file f)
	318	{
	319	dprint(FD_FILE, "remove directory %s\n", f->file_name);
	320	return rmdir(f->file_name);
	321	}
	322
910c72df FS	323	static struct ioengine_ops ioengine_filecreate = {
	324	.name = "filecreate",
	325	.version = FIO_IOOPS_VERSION,
	326	.init = init,
	327	.cleanup = cleanup,
	328	.queue = queue_io,
	329	.get_file_size = get_file_size,
	330	.open_file = open_file,
	331	.close_file = generic_close_file,
	332	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	333	FIO_NOSTATS \| FIO_NOFILEHASH,
	334	};
	335
	336	static struct ioengine_ops ioengine_filestat = {
	337	.name = "filestat",
	338	.version = FIO_IOOPS_VERSION,
	339	.init = init,
	340	.cleanup = cleanup,
	341	.queue = queue_io,
	342	.invalidate = invalidate_do_nothing,
	343	.get_file_size = generic_get_file_size,
	344	.open_file = stat_file,
	345	.flags = FIO_SYNCIO \| FIO_FAKEIO \|
	346	FIO_NOSTATS \| FIO_NOFILEHASH,
	347	.options = options,
	348	.option_struct_size = sizeof(struct filestat_options),
	349	};
	350
	351	static struct ioengine_ops ioengine_filedelete = {
	352	.name = "filedelete",
	353	.version = FIO_IOOPS_VERSION,
	354	.init = init,
	355	.invalidate = invalidate_do_nothing,
	356	.cleanup = cleanup,
	357	.queue = queue_io,
	358	.get_file_size = generic_get_file_size,
	359	.open_file = delete_file,
	360	.flags = FIO_SYNCIO \| FIO_FAKEIO \|
	361	FIO_NOSTATS \| FIO_NOFILEHASH,
	362	};
	363
a7a817a2	364	static struct ioengine_ops ioengine_dircreate = {
	365	.name = "dircreate",
	366	.version = FIO_IOOPS_VERSION,
	367	.init = init,
	368	.cleanup = cleanup,
	369	.queue = queue_io,
	370	.get_file_size = get_file_size,
	371	.open_file = open_file,
	372	.close_file = generic_close_file,
	373	.unlink_file = remove_dir,
	374	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	375	FIO_NOSTATS \| FIO_NOFILEHASH,
	376	};
	377
	378	static struct ioengine_ops ioengine_dirstat = {
	379	.name = "dirstat",
	380	.version = FIO_IOOPS_VERSION,
	381	.setup = setup_dirs,
	382	.init = init,
	383	.cleanup = cleanup,
	384	.queue = queue_io,
	385	.invalidate = invalidate_do_nothing,
	386	.get_file_size = generic_get_file_size,
	387	.open_file = stat_file,
	388	.unlink_file = remove_dir,
	389	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	390	FIO_NOSTATS \| FIO_NOFILEHASH,
	391	.options = options,
	392	.option_struct_size = sizeof(struct filestat_options),
	393	};
	394
	395	static struct ioengine_ops ioengine_dirdelete = {
	396	.name = "dirdelete",
	397	.version = FIO_IOOPS_VERSION,
	398	.setup = setup_dirs,
	399	.init = init,
	400	.invalidate = invalidate_do_nothing,
	401	.cleanup = cleanup,
	402	.queue = queue_io,
	403	.get_file_size = get_file_size,
	404	.open_file = delete_file,
	405	.unlink_file = remove_dir,
	406	.flags = FIO_DISKLESSIO \| FIO_SYNCIO \| FIO_FAKEIO \|
	407	FIO_NOSTATS \| FIO_NOFILEHASH,
	408	};
	409
910c72df FS	410
	411	static void fio_init fio_fileoperations_register(void)
	412	{
	413	register_ioengine(&ioengine_filecreate);
	414	register_ioengine(&ioengine_filestat);
	415	register_ioengine(&ioengine_filedelete);
a7a817a2	416	register_ioengine(&ioengine_dircreate);
	417	register_ioengine(&ioengine_dirstat);
	418	register_ioengine(&ioengine_dirdelete);
910c72df FS	419	}
	420
	421	static void fio_exit fio_fileoperations_unregister(void)
	422	{
	423	unregister_ioengine(&ioengine_filecreate);
	424	unregister_ioengine(&ioengine_filestat);
	425	unregister_ioengine(&ioengine_filedelete);
a7a817a2	426	unregister_ioengine(&ioengine_dircreate);
	427	unregister_ioengine(&ioengine_dirstat);
	428	unregister_ioengine(&ioengine_dirdelete);
910c72df	429	}