zcache-main.c File Reference

#include <linux/module.h>
#include <linux/cpu.h>
#include <linux/highmem.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/atomic.h>
#include <linux/math64.h>
#include <linux/crypto.h>
#include <linux/cleancache.h>
#include <linux/frontswap.h>
#include "tmem.h"
#include "zcache.h"
#include "zbud.h"
#include "ramster.h"

Go to the source code of this file.

Macros
#define	ramster_enabled   0
#define	ZCACHE_GFP_MASK   (__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)
#define	ZCACHE_COMP_NAME_SZ   CRYPTO_MAX_ALG_NAME
#define	ZCACHE_DEBUG
#define	ZCACHE_DSTMEM_ORDER   1
#define	SWIZ_BITS   8
#define	SWIZ_MASK   ((1 << SWIZ_BITS) - 1)
#define	_oswiz(_type, _ind)   ((_type << SWIZ_BITS) | (_ind & SWIZ_MASK))
#define	iswiz(_ind)   (_ind >> SWIZ_BITS)

Enumerations
enum	comp_op { ZCACHE_COMPOP_COMPRESS, ZCACHE_COMPOP_DECOMPRESS, ZCACHE_COMPOP_COMPRESS, ZCACHE_COMPOP_DECOMPRESS }

Functions
	MODULE_LICENSE ("GPL")
void	zcache_dump (void)
struct tmem_pool *	zcache_get_pool_by_id (uint16_t cli_id, uint16_t poolid)
void	zcache_put_pool (struct tmem_pool *pool)
int	zcache_new_client (uint16_t cli_id)
void *	zcache_pampd_create (char *data, unsigned int size, bool raw, int eph, struct tmem_handle *th)
void	zcache_pampd_create_finish (void *pampd, bool eph)
void	zcache_decompress_to_page (char *from_va, unsigned int size, struct page *to_page)
int	zcache_put_page (int cli_id, int pool_id, struct tmem_oid *oidp, uint32_t index, void *page, unsigned int size, bool raw, int ephemeral)
int	zcache_get_page (int cli_id, int pool_id, struct tmem_oid *oidp, uint32_t index, void *page, size_t *sizep, bool raw, int get_and_free)
int	zcache_flush_page (int cli_id, int pool_id, struct tmem_oid *oidp, uint32_t index)
int	zcache_flush_object (int cli_id, int pool_id, struct tmem_oid *oidp)
int	zcache_new_pool (uint16_t cli_id, uint32_t flags)
int	zcache_autocreate_pool (unsigned int cli_id, unsigned int pool_id, bool eph)
struct cleancache_ops	zcache_cleancache_register_ops (void)
struct frontswap_ops	zcache_frontswap_register_ops (void)
	__setup ("zcache", enable_zcache)
	__setup ("ramster", enable_ramster)
	__setup ("nocleancache", no_cleancache)
	__setup ("nofrontswap", no_frontswap)
	__setup ("nofrontswapexclusivegets", no_frontswap_exclusive_gets)
	__setup ("nofrontswapignorenonactive", no_frontswap_ignore_nonactive)
	__setup ("nocleancacheignorenonactive", no_cleancache_ignore_nonactive)
	__setup ("zcache=", enable_zcache_compressor)
	late_initcall (zcache_init)

Macro Definition Documentation

#define _oswiz	(		_type,
			_ind
	)		((_type << SWIZ_BITS) | (_ind & SWIZ_MASK))

Definition at line 1517 of file zcache-main.c.

#define iswiz

(

_ind

)

(_ind >> SWIZ_BITS)

Definition at line 1518 of file zcache-main.c.

#define ramster_enabled   0

Definition at line 35 of file zcache-main.c.

#define SWIZ_BITS   8

Definition at line 1515 of file zcache-main.c.

#define SWIZ_MASK   ((1 << SWIZ_BITS) - 1)

Definition at line 1516 of file zcache-main.c.

#define ZCACHE_COMP_NAME_SZ   CRYPTO_MAX_ALG_NAME

Definition at line 71 of file zcache-main.c.

#define ZCACHE_DEBUG

Definition at line 248 of file zcache-main.c.

#define ZCACHE_DSTMEM_ORDER   1

Definition at line 856 of file zcache-main.c.

#define ZCACHE_GFP_MASK   (__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)

Definition at line 65 of file zcache-main.c.

Enumeration Type Documentation

enum comp_op

Enumerator:

ZCACHE_COMPOP_COMPRESS
ZCACHE_COMPOP_DECOMPRESS
ZCACHE_COMPOP_COMPRESS
ZCACHE_COMPOP_DECOMPRESS

Definition at line 75 of file zcache-main.c.

Function Documentation

__setup	(	"zcache"	,
		enable_zcache
	)

__setup	(	"ramster"	,
		enable_ramster
	)

__setup	(	"nocleancache"	,
		no_cleancache
	)

__setup	(	"nofrontswap"	,
		no_frontswap
	)

__setup	(	"nofrontswapexclusivegets"	,
		no_frontswap_exclusive_gets
	)

__setup	(	"nofrontswapignorenonactive"	,
		no_frontswap_ignore_nonactive
	)

__setup	(	"nocleancacheignorenonactive"	,
		no_cleancache_ignore_nonactive
	)

__setup

(

)

late_initcall

(

zcache_init

)

MODULE_LICENSE

(

"GPL"

)

int zcache_autocreate_pool	(	unsigned int	cli_id,
		unsigned int	pool_id,
		bool	eph
	)

Definition at line 1346 of file zcache-main.c.

struct cleancache_ops zcache_cleancache_register_ops ( void  )

read

Definition at line 1498 of file zcache-main.c.

void zcache_decompress_to_page	(	char *	from_va,
		unsigned int	size,
		struct page *	to_page
	)

Definition at line 715 of file zcache-main.c.

void zcache_dump

(

void

)

Definition at line 251 of file zcache-main.c.

int zcache_flush_object	(	int	cli_id,
		int	pool_id,
		struct tmem_oid *	oidp
	)

Definition at line 1235 of file zcache-main.c.

int zcache_flush_page	(	int	cli_id,
		int	pool_id,
		struct tmem_oid *	oidp,
		uint32_t	index
	)

Definition at line 1212 of file zcache-main.c.

struct frontswap_ops zcache_frontswap_register_ops ( void  )

read

Definition at line 1629 of file zcache-main.c.

int zcache_get_page	(	int	cli_id,
		int	pool_id,
		struct tmem_oid *	oidp,
		uint32_t	index,
		void *	page,
		size_t *	sizep,
		bool	raw,
		int	get_and_free
	)

Definition at line 1182 of file zcache-main.c.

static struct tmem_pool * zcache_get_pool_by_id ( uint16_t  cli_id, uint16_t  poolid  )

read

Definition at line 331 of file zcache-main.c.

int zcache_new_client

(

uint16_t

cli_id

)

Definition at line 362 of file zcache-main.c.

int zcache_new_pool	(	uint16_t	cli_id,
		uint32_t	flags
	)

Definition at line 1294 of file zcache-main.c.

void* zcache_pampd_create	(	char *	data,
		unsigned int	size,
		bool	raw,
		int	eph,
		struct tmem_handle *	th
	)

Definition at line 639 of file zcache-main.c.

void zcache_pampd_create_finish	(	void *	pampd,
		bool	eph
	)

Definition at line 690 of file zcache-main.c.

int zcache_put_page	(	int	cli_id,
		int	pool_id,
		struct tmem_oid *	oidp,
		uint32_t	index,
		void *	page,
		unsigned int	size,
		bool	raw,
		int	ephemeral
	)

Definition at line 1134 of file zcache-main.c.

static void zcache_put_pool

(

struct tmem_pool *

pool

)

Definition at line 350 of file zcache-main.c.