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Move kstack_cache_entry into the private header, and make the

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stack cache list header accessible outside vm_glue.c.

MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2011-12-16 10:56:16 +00:00
parent d50b2720a9
commit e878d99718
2 changed files with 45 additions and 7 deletions
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43
sys/sys/_kstack_cache.h Normal file
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@ -0,0 +1,43 @@
/*-
* Copyright (c) 2009 Konstantin Belousov <kib@FreeBSD.org>
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* $FreeBSD$
*/
#ifndef _SYS__KSTACK_CACHE_H
#define _SYS__KSTACK_CACHE_H
struct kstack_cache_entry {
struct vm_object *ksobj;
struct kstack_cache_entry *next_ks_entry;
};
extern struct kstack_cache_entry *kstack_cache;
#endif

9
sys/vm/vm_glue.c
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@ -77,7 +77,7 @@ __FBSDID("$FreeBSD$");
#include <sys/vmmeter.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/_kstack_cache.h>
#include <sys/eventhandler.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
@ -331,12 +331,7 @@ vm_sync_icache(vm_map_t map, vm_offset_t va, vm_offset_t sz)
pmap_sync_icache(map->pmap, va, sz);
}
struct kstack_cache_entry {
vm_object_t ksobj;
struct kstack_cache_entry *next_ks_entry;
};
static struct kstack_cache_entry *kstack_cache;
struct kstack_cache_entry *kstack_cache;
static int kstack_cache_size = 128;
static int kstacks;
static struct mtx kstack_cache_mtx;