dm-kcopyd.c File Reference

#include <linux/types.h>
#include <linux/atomic.h>
#include <linux/blkdev.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/mempool.h>
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/device-mapper.h>
#include <linux/dm-kcopyd.h>
#include "dm.h"

Go to the source code of this file.

Data Structures
struct	dm_kcopyd_client
struct	kcopyd_job

Macros
#define	SUB_JOB_SIZE   128
#define	SPLIT_COUNT   8
#define	MIN_JOBS   8
#define	RESERVE_PAGES   (DIV_ROUND_UP(SUB_JOB_SIZE << SECTOR_SHIFT, PAGE_SIZE))

Functions
int __init	dm_kcopyd_init (void)
void	dm_kcopyd_exit (void)
int	dm_kcopyd_copy (struct dm_kcopyd_client *kc, struct dm_io_region *from, unsigned int num_dests, struct dm_io_region *dests, unsigned int flags, dm_kcopyd_notify_fn fn, void *context)
	EXPORT_SYMBOL (dm_kcopyd_copy)
int	dm_kcopyd_zero (struct dm_kcopyd_client *kc, unsigned num_dests, struct dm_io_region *dests, unsigned flags, dm_kcopyd_notify_fn fn, void *context)
	EXPORT_SYMBOL (dm_kcopyd_zero)
void *	dm_kcopyd_prepare_callback (struct dm_kcopyd_client *kc, dm_kcopyd_notify_fn fn, void *context)
	EXPORT_SYMBOL (dm_kcopyd_prepare_callback)
void	dm_kcopyd_do_callback (void *j, int read_err, unsigned long write_err)
	EXPORT_SYMBOL (dm_kcopyd_do_callback)
struct dm_kcopyd_client *	dm_kcopyd_client_create (void)
	EXPORT_SYMBOL (dm_kcopyd_client_create)
void	dm_kcopyd_client_destroy (struct dm_kcopyd_client *kc)
	EXPORT_SYMBOL (dm_kcopyd_client_destroy)

Macro Definition Documentation

#define MIN_JOBS   8

Definition at line 32 of file dm-kcopyd.c.

#define RESERVE_PAGES   (DIV_ROUND_UP(SUB_JOB_SIZE << SECTOR_SHIFT, PAGE_SIZE))

Definition at line 33 of file dm-kcopyd.c.

#define SPLIT_COUNT   8

Definition at line 31 of file dm-kcopyd.c.

#define SUB_JOB_SIZE   128

Definition at line 30 of file dm-kcopyd.c.

Function Documentation

struct dm_kcopyd_client* dm_kcopyd_client_create ( void  )

read

Definition at line 688 of file dm-kcopyd.c.

void dm_kcopyd_client_destroy

(

struct dm_kcopyd_client *

kc

)

Definition at line 742 of file dm-kcopyd.c.

int dm_kcopyd_copy	(	struct dm_kcopyd_client *	kc,
		struct dm_io_region *	from,
		unsigned int	num_dests,
		struct dm_io_region *	dests,
		unsigned int	flags,
		dm_kcopyd_notify_fn	fn,
		void *	context
	)

Definition at line 583 of file dm-kcopyd.c.

void dm_kcopyd_do_callback	(	void *	j,
		int	read_err,
		unsigned long	write_err
	)

Definition at line 660 of file dm-kcopyd.c.

void dm_kcopyd_exit

(

void

)

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

int __init dm_kcopyd_init

(

void

)

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

void* dm_kcopyd_prepare_callback	(	struct dm_kcopyd_client *	kc,
		dm_kcopyd_notify_fn	fn,
		void *	context
	)

Definition at line 641 of file dm-kcopyd.c.

int dm_kcopyd_zero	(	struct dm_kcopyd_client *	kc,
		unsigned	num_dests,
		struct dm_io_region *	dests,
		unsigned	flags,
		dm_kcopyd_notify_fn	fn,
		void *	context
	)

Definition at line 633 of file dm-kcopyd.c.

EXPORT_SYMBOL

(

dm_kcopyd_copy

)

EXPORT_SYMBOL

(

dm_kcopyd_zero

)

EXPORT_SYMBOL

(

dm_kcopyd_prepare_callback

)

EXPORT_SYMBOL

(

dm_kcopyd_do_callback

)

EXPORT_SYMBOL

(

dm_kcopyd_client_create

)

EXPORT_SYMBOL

(

dm_kcopyd_client_destroy

)