kern_rangelock.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/rangelock.h>
#include <sys/systm.h>
#include <vm/uma.h>

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Data Structures
struct	rl_q_entry

Functions
	__FBSDID ("$BSDSUniX$")
static void	rangelock_sys_init (void)
	SYSINIT (vfs, SI_SUB_LOCK, SI_ORDER_ANY, rangelock_sys_init, NULL)
static struct rl_q_entry *	rlqentry_alloc (void)
void	rlqentry_free (struct rl_q_entry *rleq)
void	rangelock_init (struct rangelock *lock)
void	rangelock_destroy (struct rangelock *lock)
static int	rangelock_incompatible (const struct rl_q_entry *e1, const struct rl_q_entry *e2)
static void	rangelock_calc_block (struct rangelock *lock)
static void	rangelock_unlock_locked (struct rangelock *lock, struct rl_q_entry *entry, struct mtx *ilk)
void	rangelock_unlock (struct rangelock *lock, void *cookie, struct mtx *ilk)
void *	rangelock_unlock_range (struct rangelock *lock, void *cookie, off_t start, off_t end, struct mtx *ilk)
static void *	rangelock_enqueue (struct rangelock *lock, off_t start, off_t end, int mode, struct mtx *ilk)
void *	rangelock_rlock (struct rangelock *lock, off_t start, off_t end, struct mtx *ilk)
void *	rangelock_wlock (struct rangelock *lock, off_t start, off_t end, struct mtx *ilk)

Variables
static uma_zone_t	rl_entry_zone

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static void rangelock_calc_block ( struct rangelock *  lock )

static

Definition at line 110 of file kern_rangelock.c.

References rangelock_incompatible(), and wakeup().

Referenced by rangelock_enqueue(), rangelock_unlock_locked(), and rangelock_unlock_range().

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void rangelock_destroy

(

struct rangelock *

lock

)

Definition at line 80 of file kern_rangelock.c.

Referenced by vdropl().

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static void* rangelock_enqueue ( struct rangelock *  lock, off_t  start, off_t  end, int  mode, struct mtx *  ilk  )

static

Definition at line 198 of file kern_rangelock.c.

References mode, rangelock_calc_block(), rlqentry_alloc(), and start.

Referenced by rangelock_rlock(), and rangelock_wlock().

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static int rangelock_incompatible ( const struct rl_q_entry *  e1, const struct rl_q_entry *  e2  )

static

Definition at line 94 of file kern_rangelock.c.

Referenced by rangelock_calc_block().

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void rangelock_init

(

struct rangelock *

lock

)

Definition at line 72 of file kern_rangelock.c.

Referenced by getnewvnode().

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void* rangelock_rlock	(	struct rangelock *	lock,
		off_t	start,
		off_t	end,
		struct mtx *	ilk
	)

Definition at line 235 of file kern_rangelock.c.

References rangelock_enqueue().

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static void rangelock_sys_init ( void  )

static

Definition at line 49 of file kern_rangelock.c.

References rl_entry_zone.

void rangelock_unlock	(	struct rangelock *	lock,
		void *	cookie,
		struct mtx *	ilk
	)

Definition at line 157 of file kern_rangelock.c.

References rangelock_unlock_locked().

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static void rangelock_unlock_locked ( struct rangelock *  lock, struct rl_q_entry *  entry, struct mtx *  ilk  )

static

Definition at line 139 of file kern_rangelock.c.

References rangelock_calc_block(), and rlqentry_free().

Referenced by rangelock_unlock(), and rangelock_unlock_range().

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void* rangelock_unlock_range	(	struct rangelock *	lock,
		void *	cookie,
		off_t	start,
		off_t	end,
		struct mtx *	ilk
	)

Definition at line 170 of file kern_rangelock.c.

References rangelock_calc_block(), and rangelock_unlock_locked().

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void* rangelock_wlock	(	struct rangelock *	lock,
		off_t	start,
		off_t	end,
		struct mtx *	ilk
	)

Definition at line 242 of file kern_rangelock.c.

References rangelock_enqueue().

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static struct rl_q_entry* rlqentry_alloc ( void  )

static

Definition at line 58 of file kern_rangelock.c.

References rl_entry_zone.

Referenced by rangelock_enqueue().

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void rlqentry_free

(

struct rl_q_entry *

rleq

)

Definition at line 65 of file kern_rangelock.c.

References rl_entry_zone.

Referenced by rangelock_unlock_locked(), and thread_fini().

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SYSINIT	(	vfs	,
		SI_SUB_LOCK	,
		SI_ORDER_ANY	,
		rangelock_sys_init	,
		NULL
	)

Variable Documentation

uma_zone_t rl_entry_zone

static

Definition at line 46 of file kern_rangelock.c.

Referenced by rangelock_sys_init(), rlqentry_alloc(), and rlqentry_free().