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
struct	mtx_pool_lockbuilder

Macros
#define	MTX_POOL_LOCKBUILDER_SIZE   128
#define	MTX_POOL_SLEEP_SIZE   128
#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 ("$BSDSUniX$")
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_static (void *dummy __unused)
static void	mtx_pool_setup_dynamic (void *dummy __unused)
struct mtx *	mtx_pool_alloc (struct mtx_pool *pool)
	SYSINIT (mtxpooli1, SI_SUB_MTX_POOL_STATIC, SI_ORDER_FIRST, mtx_pool_setup_static, NULL)
	SYSINIT (mtxpooli2, SI_SUB_MTX_POOL_DYNAMIC, SI_ORDER_FIRST, mtx_pool_setup_dynamic, NULL)

Variables
static struct mtx_pool_lockbuilder	lockbuilder_pool
struct mtx_pool *	mtxpool_sleep
struct mtx_pool *	mtxpool_lockbuilder

Macro Definition Documentation

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

Definition at line 96 of file kern_mtxpool.c.

Referenced by mtx_pool_find().

#define MTX_POOL_LOCKBUILDER_SIZE   128

Definition at line 63 of file kern_mtxpool.c.

Referenced by mtx_pool_setup_static().

#define mtx_pool_mask   mtx_pool_header.mtxpool_mask

Definition at line 87 of file kern_mtxpool.c.

#define mtx_pool_next   mtx_pool_header.mtxpool_next

Definition at line 89 of file kern_mtxpool.c.

#define mtx_pool_shift   mtx_pool_header.mtxpool_shift

Definition at line 88 of file kern_mtxpool.c.

#define mtx_pool_size   mtx_pool_header.mtxpool_size

Definition at line 86 of file kern_mtxpool.c.

#define MTX_POOL_SLEEP_SIZE   128

Definition at line 66 of file kern_mtxpool.c.

Referenced by mtx_pool_setup_dynamic().

#define POINTER_BITS   64

Definition at line 95 of file kern_mtxpool.c.

Referenced by mtx_pool_initialize().

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

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

static

struct mtx* mtx_pool_alloc

(

struct mtx_pool *

pool

)

Definition at line 190 of file kern_mtxpool.c.

References mtx_pool::mtx_pool_ary.

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

Definition at line 140 of file kern_mtxpool.c.

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

Referenced by mtx_pool_setup_dynamic(), and selectinit().

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void mtx_pool_destroy

(

struct mtx_pool **

poolp

)

Definition at line 157 of file kern_mtxpool.c.

References free(), mtx_destroy(), and mtx_pool::mtx_pool_ary.

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

Definition at line 109 of file kern_mtxpool.c.

References HASH_MULTIPLIER, and mtx_pool::mtx_pool_ary.

Referenced by bdone(), biodone(), biowait(), bpin(), bunpin(), bunpin_wait(), bwait(), foffset_lock(), foffset_unlock(), get_advice(), selrecord(), vn_read(), and vn_write().

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

static

Definition at line 124 of file kern_mtxpool.c.

References mtx_init(), mtx_pool::mtx_pool_ary, and POINTER_BITS.

Referenced by mtx_pool_create(), and mtx_pool_setup_static().

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static void mtx_pool_setup_dynamic ( void *dummy  __unused )

static

Definition at line 178 of file kern_mtxpool.c.

References mtx_pool_create(), and MTX_POOL_SLEEP_SIZE.

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static void mtx_pool_setup_static ( void *dummy  __unused )

static

Definition at line 169 of file kern_mtxpool.c.

References lockbuilder_pool, mtx_pool_initialize(), and MTX_POOL_LOCKBUILDER_SIZE.

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SYSINIT	(	mtxpooli1	,
		SI_SUB_MTX_POOL_STATIC	,
		SI_ORDER_FIRST	,
		mtx_pool_setup_static	,
		NULL
	)

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

Variable Documentation

struct mtx_pool_lockbuilder lockbuilder_pool

static

Referenced by mtx_pool_setup_static().

struct mtx_pool* mtxpool_lockbuilder

Definition at line 92 of file kern_mtxpool.c.

struct mtx_pool* mtxpool_sleep

Definition at line 91 of file kern_mtxpool.c.

Referenced by bdone(), biodone(), biowait(), bpin(), bunpin(), bunpin_wait(), bwait(), foffset_lock(), foffset_unlock(), get_advice(), kern_posix_fadvise(), vn_read(), and vn_write().