kern_mtxpool.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/systm.h>

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Data Structures
struct	mtxpool_header
struct	mtx_pool

Macros
#define	MTX_POOL_SLEEP_SIZE   1024
#define	mtx_pool_size   mtx_pool_header.mtxpool_size
#define	mtx_pool_mask   mtx_pool_header.mtxpool_mask
#define	mtx_pool_shift   mtx_pool_header.mtxpool_shift
#define	mtx_pool_next   mtx_pool_header.mtxpool_next
#define	POINTER_BITS   64
#define	HASH_MULTIPLIER   11400714819323198485u /* (2^64)*(sqrt(5)-1)/2 */

Functions
	__FBSDID ("$FreeBSD$")
static	MALLOC_DEFINE (M_MTXPOOL, "mtx_pool", "mutex pool")
struct mtx *	mtx_pool_find (struct mtx_pool *pool, void *ptr)
static void	mtx_pool_initialize (struct mtx_pool *pool, const char *mtx_name, int pool_size, int opts)
struct mtx_pool *	mtx_pool_create (const char *mtx_name, int pool_size, int opts)
void	mtx_pool_destroy (struct mtx_pool **poolp)
static void	mtx_pool_setup_dynamic (void *dummy __unused)
struct mtx *	mtx_pool_alloc (struct mtx_pool *pool)
	SYSINIT (mtxpooli2, SI_SUB_MTX_POOL_DYNAMIC, SI_ORDER_FIRST, mtx_pool_setup_dynamic, NULL)

Variables
struct mtx_pool __read_mostly *	mtxpool_sleep

Macro Definition Documentation

HASH_MULTIPLIER

#define HASH_MULTIPLIER   11400714819323198485u /* (2^64)*(sqrt(5)-1)/2 */

Definition at line 88 of file kern_mtxpool.c.

mtx_pool_mask

#define mtx_pool_mask   mtx_pool_header.mtxpool_mask

Definition at line 80 of file kern_mtxpool.c.

mtx_pool_next

#define mtx_pool_next   mtx_pool_header.mtxpool_next

Definition at line 82 of file kern_mtxpool.c.

mtx_pool_shift

#define mtx_pool_shift   mtx_pool_header.mtxpool_shift

Definition at line 81 of file kern_mtxpool.c.

mtx_pool_size

#define mtx_pool_size   mtx_pool_header.mtxpool_size

Definition at line 79 of file kern_mtxpool.c.

MTX_POOL_SLEEP_SIZE

#define MTX_POOL_SLEEP_SIZE   1024

Definition at line 64 of file kern_mtxpool.c.

POINTER_BITS

#define POINTER_BITS   64

Definition at line 87 of file kern_mtxpool.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

MALLOC_DEFINE()

static MALLOC_DEFINE ( M_MTXPOOL  , "mtx_pool"  , "mutex pool"    )

static

mtx_pool_alloc()

struct mtx * mtx_pool_alloc

(

struct mtx_pool *

pool

)

Definition at line 173 of file kern_mtxpool.c.

References mtx_pool::mtx_pool_ary.

mtx_pool_create()

struct mtx_pool * mtx_pool_create	(	const char *	mtx_name,
		int	pool_size,
		int	opts
	)

Definition at line 132 of file kern_mtxpool.c.

References malloc(), mtx, mtx_pool_initialize(), and printf().

Referenced by mtx_pool_setup_dynamic(), and selectinit().

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mtx_pool_destroy()

void mtx_pool_destroy

(

struct mtx_pool **

poolp

)

Definition at line 149 of file kern_mtxpool.c.

References free(), and mtx_pool::mtx_pool_ary.

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mtx_pool_find()

struct mtx * mtx_pool_find	(	struct mtx_pool *	pool,
		void *	ptr
	)

Definition at line 101 of file kern_mtxpool.c.

References HASH_MULTIPLIER, and mtx_pool::mtx_pool_ary.

Referenced by bdone(), biodone(), biowait(), bwait(), get_advice(), selrecord(), uipc_close(), uipc_detach(), unp_connectat(), and vfs_unp_reclaim().

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mtx_pool_initialize()

static void mtx_pool_initialize ( struct mtx_pool *  pool, const char *  mtx_name, int  pool_size, int  opts  )

static

Definition at line 116 of file kern_mtxpool.c.

References mtx_pool::mtx_pool_ary, and POINTER_BITS.

Referenced by mtx_pool_create().

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mtx_pool_setup_dynamic()

static void mtx_pool_setup_dynamic ( void *dummy  __unused )

static

Definition at line 161 of file kern_mtxpool.c.

References mtx_pool_create(), MTX_POOL_SLEEP_SIZE, and mtxpool_sleep.

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SYSINIT()

SYSINIT	(	mtxpooli2	,
		SI_SUB_MTX_POOL_DYNAMIC	,
		SI_ORDER_FIRST	,
		mtx_pool_setup_dynamic	,
		NULL
	)

Variable Documentation

mtxpool_sleep

struct mtx_pool __read_mostly* mtxpool_sleep

Definition at line 84 of file kern_mtxpool.c.

Referenced by bdone(), biodone(), biowait(), bwait(), get_advice(), kern_posix_fadvise(), mtx_pool_setup_dynamic(), uipc_close(), uipc_detach(), unp_connectat(), and vfs_unp_reclaim().