dm.h File Reference

#include <linux/fs.h>
#include <linux/device-mapper.h>
#include <linux/list.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>

Go to the source code of this file.

Data Structures
struct	dm_dev_internal

Macros
#define	DM_SUSPEND_LOCKFS_FLAG   (1 << 0)
#define	DM_SUSPEND_NOFLUSH_FLAG   (1 << 1)
#define	DM_STATUS_NOFLUSH_FLAG   (1 << 0)
#define	DM_TYPE_NONE   0
#define	DM_TYPE_BIO_BASED   1
#define	DM_TYPE_REQUEST_BASED   2
#define	dm_target_is_valid(t)   ((t)->table)
#define	dm_target_request_based(t)   ((t)->type->map_rq != NULL)

Functions
void	dm_table_destroy (struct dm_table *t)
void	dm_table_event_callback (struct dm_table *t, void(*fn)(void *), void *context)
struct dm_target *	dm_table_get_target (struct dm_table *t, unsigned int index)
struct dm_target *	dm_table_find_target (struct dm_table *t, sector_t sector)
bool	dm_table_has_no_data_devices (struct dm_table *table)
int	dm_calculate_queue_limits (struct dm_table *table, struct queue_limits *limits)
void	dm_table_set_restrictions (struct dm_table *t, struct request_queue *q, struct queue_limits *limits)
struct list_head *	dm_table_get_devices (struct dm_table *t)
void	dm_table_presuspend_targets (struct dm_table *t)
void	dm_table_postsuspend_targets (struct dm_table *t)
int	dm_table_resume_targets (struct dm_table *t)
int	dm_table_any_congested (struct dm_table *t, int bdi_bits)
int	dm_table_any_busy_target (struct dm_table *t)
unsigned	dm_table_get_type (struct dm_table *t)
struct target_type *	dm_table_get_immutable_target_type (struct dm_table *t)
bool	dm_table_request_based (struct dm_table *t)
bool	dm_table_supports_discards (struct dm_table *t)
int	dm_table_alloc_md_mempools (struct dm_table *t)
void	dm_table_free_md_mempools (struct dm_table *t)
struct dm_md_mempools *	dm_table_get_md_mempools (struct dm_table *t)
int	dm_queue_merge_is_compulsory (struct request_queue *q)
void	dm_lock_md_type (struct mapped_device *md)
void	dm_unlock_md_type (struct mapped_device *md)
void	dm_set_md_type (struct mapped_device *md, unsigned type)
unsigned	dm_get_md_type (struct mapped_device *md)
struct target_type *	dm_get_immutable_target_type (struct mapped_device *md)
int	dm_setup_md_queue (struct mapped_device *md)
int	dm_target_init (void)
void	dm_target_exit (void)
struct target_type *	dm_get_target_type (const char *name)
void	dm_put_target_type (struct target_type *tt)
int	dm_target_iterate (void(*iter_func)(struct target_type *tt, void *param), void *param)
int	dm_split_args (int *argc, char ***argvp, char *input)
int	dm_deleting_md (struct mapped_device *md)
int	dm_suspended_md (struct mapped_device *md)
int	dm_interface_init (void)
void	dm_interface_exit (void)
int	dm_sysfs_init (struct mapped_device *md)
void	dm_sysfs_exit (struct mapped_device *md)
struct kobject *	dm_kobject (struct mapped_device *md)
struct mapped_device *	dm_get_from_kobject (struct kobject *kobj)
int	dm_linear_init (void)
void	dm_linear_exit (void)
int	dm_stripe_init (void)
void	dm_stripe_exit (void)
void	dm_destroy (struct mapped_device *md)
void	dm_destroy_immediate (struct mapped_device *md)
int	dm_open_count (struct mapped_device *md)
int	dm_lock_for_deletion (struct mapped_device *md)
int	dm_kobject_uevent (struct mapped_device *md, enum kobject_action action, unsigned cookie)
int	dm_io_init (void)
void	dm_io_exit (void)
int	dm_kcopyd_init (void)
void	dm_kcopyd_exit (void)
struct dm_md_mempools *	dm_alloc_md_mempools (unsigned type, unsigned integrity)
void	dm_free_md_mempools (struct dm_md_mempools *pools)

Macro Definition Documentation

#define DM_STATUS_NOFLUSH_FLAG   (1 << 0)

Definition at line 28 of file dm.h.

#define DM_SUSPEND_LOCKFS_FLAG   (1 << 0)

Definition at line 22 of file dm.h.

#define DM_SUSPEND_NOFLUSH_FLAG   (1 << 1)

Definition at line 23 of file dm.h.

#define dm_target_is_valid

(

t

)

((t)->table)

Definition at line 89 of file dm.h.

#define dm_target_request_based

(

t

)

((t)->type->map_rq != NULL)

Definition at line 94 of file dm.h.

#define DM_TYPE_BIO_BASED   1

Definition at line 34 of file dm.h.

#define DM_TYPE_NONE   0

Definition at line 33 of file dm.h.

#define DM_TYPE_REQUEST_BASED   2

Definition at line 35 of file dm.h.

Function Documentation

struct dm_md_mempools* dm_alloc_md_mempools ( unsigned  type, unsigned  integrity  )

read

Definition at line 2714 of file dm.c.

int dm_calculate_queue_limits	(	struct dm_table *	table,
		struct queue_limits *	limits
	)

Definition at line 1253 of file dm-table.c.

int dm_deleting_md

(

struct mapped_device *

md

)

Definition at line 340 of file dm.c.

void dm_destroy

(

struct mapped_device *

md

)

Definition at line 2304 of file dm.c.

void dm_destroy_immediate

(

struct mapped_device *

md

)

Definition at line 2309 of file dm.c.

void dm_free_md_mempools

(

struct dm_md_mempools *

pools

)

Definition at line 2764 of file dm.c.

struct mapped_device* dm_get_from_kobject ( struct kobject *  kobj )

read

Definition at line 2681 of file dm.c.

struct target_type* dm_get_immutable_target_type ( struct mapped_device *  md )

read

Definition at line 2165 of file dm.c.

unsigned dm_get_md_type

(

struct mapped_device *

md

)

Definition at line 2160 of file dm.c.

struct target_type* dm_get_target_type ( const char *  name )

read

Definition at line 51 of file dm-target.c.

void dm_interface_exit

(

void

)

Definition at line 1747 of file dm-ioctl.c.

int dm_interface_init

(

void

)

Definition at line 1726 of file dm-ioctl.c.

void dm_io_exit

(

void

)

Definition at line 508 of file dm-io.c.

int dm_io_init

(

void

)

Definition at line 499 of file dm-io.c.

void dm_kcopyd_exit

(

void

)

Definition at line 265 of file dm-kcopyd.c.

int dm_kcopyd_init

(

void

)

Definition at line 251 of file dm-kcopyd.c.

struct kobject* dm_kobject ( struct mapped_device *  md )

read

Definition at line 2672 of file dm.c.

int dm_kobject_uevent	(	struct mapped_device *	md,
		enum kobject_action	action,
		unsigned	cookie
	)

Definition at line 2622 of file dm.c.

void dm_linear_exit

(

void

)

Definition at line 179 of file dm-linear.c.

int dm_linear_init

(

void

)

Definition at line 169 of file dm-linear.c.

int dm_lock_for_deletion

(

struct mapped_device *

md

)

Definition at line 392 of file dm.c.

void dm_lock_md_type

(

struct mapped_device *

md

)

Definition at line 2145 of file dm.c.

int dm_open_count

(

struct mapped_device *

md

)

Definition at line 384 of file dm.c.

void dm_put_target_type

(

struct target_type *

tt

)

Definition at line 63 of file dm-target.c.

int dm_queue_merge_is_compulsory

(

struct request_queue *

q

)

Definition at line 2006 of file dm.c.

void dm_set_md_type	(	struct mapped_device *	md,
		unsigned	type
	)

Definition at line 2155 of file dm.c.

int dm_setup_md_queue

(

struct mapped_device *

md

)

Definition at line 2199 of file dm.c.

int dm_split_args	(	int *	argc,
		char ***	argvp,
		char *	input
	)

Definition at line 604 of file dm-table.c.

void dm_stripe_exit

(

void

)

Definition at line 456 of file dm-stripe.c.

int dm_stripe_init

(

void

)

Definition at line 443 of file dm-stripe.c.

int dm_suspended_md

(

struct mapped_device *

md

)

Definition at line 2697 of file dm.c.

void dm_sysfs_exit

(

struct mapped_device *

md

)

Definition at line 105 of file dm-sysfs.c.

int dm_sysfs_init

(

struct mapped_device *

md

)

Definition at line 95 of file dm-sysfs.c.

int dm_table_alloc_md_mempools

(

struct dm_table *

t

)

Definition at line 967 of file dm-table.c.

int dm_table_any_busy_target

(

struct dm_table *

t

)

Definition at line 1578 of file dm-table.c.

int dm_table_any_congested	(	struct dm_table *	t,
		int	bdi_bits
	)

Definition at line 1552 of file dm-table.c.

void dm_table_destroy

(

struct dm_table *

t

)

Definition at line 243 of file dm-table.c.

void dm_table_event_callback	(	struct dm_table *	t,
		void(*)(void *)	fn,
		void *	context
	)

Definition at line 1154 of file dm-table.c.

struct dm_target* dm_table_find_target ( struct dm_table *  t, sector_t  sector  )

read

Definition at line 1198 of file dm-table.c.

void dm_table_free_md_mempools

(

struct dm_table *

t

)

Definition at line 983 of file dm-table.c.

struct list_head* dm_table_get_devices ( struct dm_table *  t )

read

Definition at line 1478 of file dm-table.c.

struct target_type* dm_table_get_immutable_target_type ( struct dm_table *  t )

read

Definition at line 957 of file dm-table.c.

struct dm_md_mempools* dm_table_get_md_mempools ( struct dm_table *  t )

read

Definition at line 989 of file dm-table.c.

struct dm_target* dm_table_get_target ( struct dm_table *  t, unsigned int  index  )

read

Definition at line 1184 of file dm-table.c.

unsigned dm_table_get_type

(

struct dm_table *

t

)

Definition at line 952 of file dm-table.c.

bool dm_table_has_no_data_devices

(

struct dm_table *

table

)

Definition at line 1231 of file dm-table.c.

void dm_table_postsuspend_targets

(

struct dm_table *

t

)

Definition at line 1513 of file dm-table.c.

void dm_table_presuspend_targets

(

struct dm_table *

t

)

Definition at line 1505 of file dm-table.c.

bool dm_table_request_based

(

struct dm_table *

t

)

Definition at line 962 of file dm-table.c.

int dm_table_resume_targets

(

struct dm_table *

t

)

Definition at line 1521 of file dm-table.c.

void dm_table_set_restrictions	(	struct dm_table *	t,
		struct request_queue *	q,
		struct queue_limits *	limits
	)

Definition at line 1417 of file dm-table.c.

bool dm_table_supports_discards

(

struct dm_table *

t

)

Definition at line 1606 of file dm-table.c.

void dm_target_exit

(

void

)

Definition at line 148 of file dm-target.c.

int dm_target_init

(

void

)

Definition at line 143 of file dm-target.c.

int dm_target_iterate	(	void(*)(struct target_type *tt, void *param)	iter_func,
		void *	param
	)

Definition at line 70 of file dm-target.c.

void dm_unlock_md_type

(

struct mapped_device *

md

)

Definition at line 2150 of file dm.c.