Heave-ho mutex/rwlock object routines into separate modules -- they
don't have anything to do with the lock internals.
This commit is contained in:
pooka
parent
61d1f4a9a4
commit
83685e650c
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@ -1,4 +1,4 @@
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# $NetBSD: files,v 1.960 2009/11/03 00:24:05 dyoung Exp $
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# $NetBSD: files,v 1.961 2009/11/04 13:29:45 pooka Exp $
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# @(#)files.newconf 7.5 (Berkeley) 5/10/93
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version 20090313
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@ -1439,6 +1439,7 @@ file kern/kern_malloc_stdtype.c
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file kern/kern_malloc_debug.c malloc_debug
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file kern/kern_module.c
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file kern/kern_mutex.c
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file kern/kern_mutex_obj.c
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file kern/kern_fileassoc.c fileassoc
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file kern/kern_ntptime.c
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file kern/kern_pax.c pax_mprotect | pax_segvguard
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@ -1451,6 +1452,7 @@ file kern/kern_rate.c
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file kern/kern_resource.c
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file kern/kern_runq.c
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file kern/kern_rwlock.c
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file kern/kern_rwlock_obj.c
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file kern/kern_sig.c
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file kern/kern_sleepq.c
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file kern/kern_softint.c
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@ -1,4 +1,4 @@
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/* $NetBSD: kern_mutex.c,v 1.45 2009/01/25 04:45:14 rmind Exp $ */
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/* $NetBSD: kern_mutex.c,v 1.46 2009/11/04 13:29:45 pooka Exp $ */
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/*-
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* Copyright (c) 2002, 2006, 2007, 2008 The NetBSD Foundation, Inc.
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@ -40,9 +40,10 @@
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#define __MUTEX_PRIVATE
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kern_mutex.c,v 1.45 2009/01/25 04:45:14 rmind Exp $");
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__KERNEL_RCSID(0, "$NetBSD: kern_mutex.c,v 1.46 2009/11/04 13:29:45 pooka Exp $");
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#include <sys/param.h>
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#include <sys/atomic.h>
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#include <sys/proc.h>
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#include <sys/mutex.h>
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#include <sys/sched.h>
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@ -50,10 +51,8 @@ __KERNEL_RCSID(0, "$NetBSD: kern_mutex.c,v 1.45 2009/01/25 04:45:14 rmind Exp $"
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#include <sys/systm.h>
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#include <sys/lockdebug.h>
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#include <sys/kernel.h>
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#include <sys/atomic.h>
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#include <sys/intr.h>
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#include <sys/lock.h>
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#include <sys/pool.h>
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#include <dev/lockstat.h>
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@ -274,18 +273,6 @@ syncobj_t mutex_syncobj = {
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(void *)mutex_owner,
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};
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/* Mutex cache */
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#define MUTEX_OBJ_MAGIC 0x5aa3c85d
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struct kmutexobj {
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kmutex_t mo_lock;
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u_int mo_magic;
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u_int mo_refcnt;
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};
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static int mutex_obj_ctor(void *, void *, int);
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static pool_cache_t mutex_obj_cache;
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/*
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* mutex_dump:
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*
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@ -940,88 +927,3 @@ mutex_spin_retry(kmutex_t *mtx)
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#endif /* MULTIPROCESSOR */
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}
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#endif /* defined(__HAVE_SPIN_MUTEX_STUBS) || defined(FULL) */
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/*
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* mutex_obj_init:
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*
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* Initialize the mutex object store.
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*/
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void
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mutex_obj_init(void)
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{
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mutex_obj_cache = pool_cache_init(sizeof(struct kmutexobj),
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coherency_unit, 0, 0, "mutex", NULL, IPL_NONE, mutex_obj_ctor,
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NULL, NULL);
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}
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/*
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* mutex_obj_ctor:
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*
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* Initialize a new lock for the cache.
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*/
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static int
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mutex_obj_ctor(void *arg, void *obj, int flags)
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{
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struct kmutexobj * mo = obj;
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mo->mo_magic = MUTEX_OBJ_MAGIC;
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return 0;
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}
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/*
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* mutex_obj_alloc:
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*
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* Allocate a single lock object.
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*/
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kmutex_t *
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mutex_obj_alloc(kmutex_type_t type, int ipl)
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{
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struct kmutexobj *mo;
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mo = pool_cache_get(mutex_obj_cache, PR_WAITOK);
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mutex_init(&mo->mo_lock, type, ipl);
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mo->mo_refcnt = 1;
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return (kmutex_t *)mo;
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}
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/*
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* mutex_obj_hold:
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*
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* Add a single reference to a lock object. A reference to the object
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* must already be held, and must be held across this call.
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*/
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void
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mutex_obj_hold(kmutex_t *lock)
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{
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struct kmutexobj *mo = (struct kmutexobj *)lock;
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KASSERT(mo->mo_magic == MUTEX_OBJ_MAGIC);
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KASSERT(mo->mo_refcnt > 0);
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atomic_inc_uint(&mo->mo_refcnt);
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}
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/*
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* mutex_obj_free:
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*
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* Drop a reference from a lock object. If the last reference is being
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* dropped, free the object and return true. Otherwise, return false.
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*/
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bool
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mutex_obj_free(kmutex_t *lock)
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{
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struct kmutexobj *mo = (struct kmutexobj *)lock;
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KASSERT(mo->mo_magic == MUTEX_OBJ_MAGIC);
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KASSERT(mo->mo_refcnt > 0);
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if (atomic_dec_uint_nv(&mo->mo_refcnt) > 0) {
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return false;
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}
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mutex_destroy(&mo->mo_lock);
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pool_cache_put(mutex_obj_cache, mo);
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return true;
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}
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@ -0,0 +1,135 @@
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/* $NetBSD: kern_mutex_obj.c,v 1.1 2009/11/04 13:29:45 pooka Exp $ */
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/*-
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* Copyright (c) 2002, 2006, 2007, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe and Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kern_mutex_obj.c,v 1.1 2009/11/04 13:29:45 pooka Exp $");
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#include <sys/param.h>
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#include <sys/atomic.h>
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#include <sys/mutex.h>
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#include <sys/pool.h>
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/* Mutex cache */
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#define MUTEX_OBJ_MAGIC 0x5aa3c85d
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struct kmutexobj {
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kmutex_t mo_lock;
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u_int mo_magic;
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u_int mo_refcnt;
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};
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static int mutex_obj_ctor(void *, void *, int);
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static pool_cache_t mutex_obj_cache;
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/*
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* mutex_obj_init:
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*
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* Initialize the mutex object store.
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*/
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void
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mutex_obj_init(void)
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{
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mutex_obj_cache = pool_cache_init(sizeof(struct kmutexobj),
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coherency_unit, 0, 0, "mutex", NULL, IPL_NONE, mutex_obj_ctor,
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NULL, NULL);
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}
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/*
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* mutex_obj_ctor:
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*
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* Initialize a new lock for the cache.
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*/
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static int
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mutex_obj_ctor(void *arg, void *obj, int flags)
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{
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struct kmutexobj * mo = obj;
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mo->mo_magic = MUTEX_OBJ_MAGIC;
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return 0;
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}
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/*
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* mutex_obj_alloc:
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*
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* Allocate a single lock object.
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*/
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kmutex_t *
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mutex_obj_alloc(kmutex_type_t type, int ipl)
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{
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struct kmutexobj *mo;
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mo = pool_cache_get(mutex_obj_cache, PR_WAITOK);
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mutex_init(&mo->mo_lock, type, ipl);
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mo->mo_refcnt = 1;
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return (kmutex_t *)mo;
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}
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/*
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* mutex_obj_hold:
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*
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* Add a single reference to a lock object. A reference to the object
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* must already be held, and must be held across this call.
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*/
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void
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mutex_obj_hold(kmutex_t *lock)
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{
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struct kmutexobj *mo = (struct kmutexobj *)lock;
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KASSERT(mo->mo_magic == MUTEX_OBJ_MAGIC);
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KASSERT(mo->mo_refcnt > 0);
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atomic_inc_uint(&mo->mo_refcnt);
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}
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/*
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* mutex_obj_free:
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*
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* Drop a reference from a lock object. If the last reference is being
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* dropped, free the object and return true. Otherwise, return false.
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*/
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bool
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mutex_obj_free(kmutex_t *lock)
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{
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struct kmutexobj *mo = (struct kmutexobj *)lock;
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KASSERT(mo->mo_magic == MUTEX_OBJ_MAGIC);
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KASSERT(mo->mo_refcnt > 0);
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if (atomic_dec_uint_nv(&mo->mo_refcnt) > 0) {
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return false;
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}
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mutex_destroy(&mo->mo_lock);
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pool_cache_put(mutex_obj_cache, mo);
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return true;
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: kern_rwlock.c,v 1.32 2009/05/16 08:36:32 yamt Exp $ */
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/* $NetBSD: kern_rwlock.c,v 1.33 2009/11/04 13:29:45 pooka Exp $ */
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/*-
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* Copyright (c) 2002, 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc.
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@ -38,7 +38,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kern_rwlock.c,v 1.32 2009/05/16 08:36:32 yamt Exp $");
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__KERNEL_RCSID(0, "$NetBSD: kern_rwlock.c,v 1.33 2009/11/04 13:29:45 pooka Exp $");
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#define __RWLOCK_PRIVATE
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@ -161,18 +161,6 @@ syncobj_t rw_syncobj = {
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rw_owner,
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};
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/* Mutex cache */
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#define RW_OBJ_MAGIC 0x85d3c85d
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struct krwobj {
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krwlock_t ro_lock;
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u_int ro_magic;
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u_int ro_refcnt;
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};
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static int rw_obj_ctor(void *, void *, int);
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static pool_cache_t rw_obj_cache;
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/*
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* rw_dump:
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*
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@ -778,88 +766,3 @@ rw_owner(wchan_t obj)
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return (void *)(owner & RW_THREAD);
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}
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/*
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* rw_obj_init:
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*
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* Initialize the rw object store.
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*/
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void
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rw_obj_init(void)
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{
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rw_obj_cache = pool_cache_init(sizeof(struct krwobj),
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coherency_unit, 0, 0, "rwlock", NULL, IPL_NONE, rw_obj_ctor,
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NULL, NULL);
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}
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/*
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* rw_obj_ctor:
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*
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* Initialize a new lock for the cache.
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*/
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static int
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rw_obj_ctor(void *arg, void *obj, int flags)
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{
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struct krwobj * ro = obj;
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ro->ro_magic = RW_OBJ_MAGIC;
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return 0;
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}
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/*
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* rw_obj_alloc:
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*
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* Allocate a single lock object.
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*/
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krwlock_t *
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rw_obj_alloc(void)
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{
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struct krwobj *ro;
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ro = pool_cache_get(rw_obj_cache, PR_WAITOK);
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rw_init(&ro->ro_lock);
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ro->ro_refcnt = 1;
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return (krwlock_t *)ro;
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}
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/*
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* rw_obj_hold:
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*
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* Add a single reference to a lock object. A reference to the object
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* must already be held, and must be held across this call.
|
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*/
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void
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rw_obj_hold(krwlock_t *lock)
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{
|
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struct krwobj *ro = (struct krwobj *)lock;
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KASSERT(ro->ro_magic == RW_OBJ_MAGIC);
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KASSERT(ro->ro_refcnt > 0);
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atomic_inc_uint(&ro->ro_refcnt);
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}
|
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|
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/*
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* rw_obj_free:
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*
|
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* Drop a reference from a lock object. If the last reference is being
|
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* dropped, free the object and return true. Otherwise, return false.
|
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*/
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bool
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rw_obj_free(krwlock_t *lock)
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{
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struct krwobj *ro = (struct krwobj *)lock;
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|
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KASSERT(ro->ro_magic == RW_OBJ_MAGIC);
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KASSERT(ro->ro_refcnt > 0);
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|
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if (atomic_dec_uint_nv(&ro->ro_refcnt) > 0) {
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return false;
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||||
}
|
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rw_destroy(&ro->ro_lock);
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pool_cache_put(rw_obj_cache, ro);
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||||
return true;
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||||
}
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|
|
|
|||
|
|
@ -0,0 +1,135 @@
|
|||
/* $NetBSD: kern_rwlock_obj.c,v 1.1 2009/11/04 13:29:45 pooka Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2002, 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Jason R. Thorpe and Andrew Doran.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: kern_rwlock_obj.c,v 1.1 2009/11/04 13:29:45 pooka Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/atomic.h>
|
||||
#include <sys/pool.h>
|
||||
#include <sys/rwlock.h>
|
||||
|
||||
/* Mutex cache */
|
||||
#define RW_OBJ_MAGIC 0x85d3c85d
|
||||
struct krwobj {
|
||||
krwlock_t ro_lock;
|
||||
u_int ro_magic;
|
||||
u_int ro_refcnt;
|
||||
};
|
||||
|
||||
static int rw_obj_ctor(void *, void *, int);
|
||||
|
||||
static pool_cache_t rw_obj_cache;
|
||||
|
||||
/*
|
||||
* rw_obj_init:
|
||||
*
|
||||
* Initialize the rw object store.
|
||||
*/
|
||||
void
|
||||
rw_obj_init(void)
|
||||
{
|
||||
|
||||
rw_obj_cache = pool_cache_init(sizeof(struct krwobj),
|
||||
coherency_unit, 0, 0, "rwlock", NULL, IPL_NONE, rw_obj_ctor,
|
||||
NULL, NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* rw_obj_ctor:
|
||||
*
|
||||
* Initialize a new lock for the cache.
|
||||
*/
|
||||
static int
|
||||
rw_obj_ctor(void *arg, void *obj, int flags)
|
||||
{
|
||||
struct krwobj * ro = obj;
|
||||
|
||||
ro->ro_magic = RW_OBJ_MAGIC;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* rw_obj_alloc:
|
||||
*
|
||||
* Allocate a single lock object.
|
||||
*/
|
||||
krwlock_t *
|
||||
rw_obj_alloc(void)
|
||||
{
|
||||
struct krwobj *ro;
|
||||
|
||||
ro = pool_cache_get(rw_obj_cache, PR_WAITOK);
|
||||
rw_init(&ro->ro_lock);
|
||||
ro->ro_refcnt = 1;
|
||||
|
||||
return (krwlock_t *)ro;
|
||||
}
|
||||
|
||||
/*
|
||||
* rw_obj_hold:
|
||||
*
|
||||
* Add a single reference to a lock object. A reference to the object
|
||||
* must already be held, and must be held across this call.
|
||||
*/
|
||||
void
|
||||
rw_obj_hold(krwlock_t *lock)
|
||||
{
|
||||
struct krwobj *ro = (struct krwobj *)lock;
|
||||
|
||||
KASSERT(ro->ro_magic == RW_OBJ_MAGIC);
|
||||
KASSERT(ro->ro_refcnt > 0);
|
||||
|
||||
atomic_inc_uint(&ro->ro_refcnt);
|
||||
}
|
||||
|
||||
/*
|
||||
* rw_obj_free:
|
||||
*
|
||||
* Drop a reference from a lock object. If the last reference is being
|
||||
* dropped, free the object and return true. Otherwise, return false.
|
||||
*/
|
||||
bool
|
||||
rw_obj_free(krwlock_t *lock)
|
||||
{
|
||||
struct krwobj *ro = (struct krwobj *)lock;
|
||||
|
||||
KASSERT(ro->ro_magic == RW_OBJ_MAGIC);
|
||||
KASSERT(ro->ro_refcnt > 0);
|
||||
|
||||
if (atomic_dec_uint_nv(&ro->ro_refcnt) > 0) {
|
||||
return false;
|
||||
}
|
||||
rw_destroy(&ro->ro_lock);
|
||||
pool_cache_put(rw_obj_cache, ro);
|
||||
return true;
|
||||
}
|
||||
Loading…
Reference in New Issue