linux/drivers/md/dm-ps-io-affinity.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2020 Oracle Corporation
 *
 * Module Author: Mike Christie
 */
#include "dm-path-selector.h"

#include <linux/device-mapper.h>
#include <linux/module.h>

#define DM_MSG_PREFIX …

struct path_info { … };

struct selector { … };

static void ioa_free_path(struct selector *s, unsigned int cpu)
{ … }

static int ioa_add_path(struct path_selector *ps, struct dm_path *path,
			int argc, char **argv, char **error)
{ … }

static int ioa_create(struct path_selector *ps, unsigned int argc, char **argv)
{ … }

static void ioa_destroy(struct path_selector *ps)
{ … }

static int ioa_status(struct path_selector *ps, struct dm_path *path,
		      status_type_t type, char *result, unsigned int maxlen)
{ … }

static void ioa_fail_path(struct path_selector *ps, struct dm_path *p)
{ … }

static int ioa_reinstate_path(struct path_selector *ps, struct dm_path *p)
{ … }

static struct dm_path *ioa_select_path(struct path_selector *ps,
				       size_t nr_bytes)
{ … }

static struct path_selector_type ioa_ps = …;

static int __init dm_ioa_init(void)
{ … }

static void __exit dm_ioa_exit(void)
{ … }

module_init(…) …;
module_exit(dm_ioa_exit);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;