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Use the pool allocator for pmap structures.

This commit is contained in:
thorpej 1998-08-25 01:46:01 +00:00
parent 2fb1caee16
commit 9c3e900094
1 changed files with 17 additions and 3 deletions
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20
sys/arch/i386/i386/pmap.new.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.new.c,v 1.16 1998/08/13 21:36:04 thorpej Exp $ */
/* $NetBSD: pmap.new.c,v 1.17 1998/08/25 01:46:01 thorpej Exp $ */
/*
*
@ -66,6 +66,7 @@
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/pool.h>
#include <sys/user.h>
#include <vm/vm.h>
@ -356,6 +357,12 @@ static vaddr_t pv_cachedva; /* cached VA for later use */
static struct pmap_head pmaps;
static struct pmap *pmaps_hand = NULL; /* used by pmap_steal_ptp */
/*
* pool that pmap structures are allocated from
*/
struct pool pmap_pmap_pool;
/*
* special VAs and the PTEs that map them
*/
@ -886,6 +893,13 @@ vaddr_t kva_start;
LIST_INIT(&pmaps);
TAILQ_INIT(&pv_freepages);
TAILQ_INIT(&pv_unusedpgs);
/*
* initialize the pmap pool.
*/
pool_init(&pmap_pmap_pool, sizeof(struct pmap), 0, 0, 0, "pmappl",
0, NULL, NULL, M_VMPMAP);
/*
* we must call uvm_page_physload() after we are done playing with
@ -1720,7 +1734,7 @@ struct pmap *pmap_create()
{
struct pmap *pmap;
MALLOC(pmap, struct pmap *, sizeof(*pmap), M_VMPMAP, M_WAITOK);
pmap = pool_get(&pmap_pmap_pool, PR_WAITOK);
pmap_pinit(pmap);
return(pmap);
}
@ -1804,7 +1818,7 @@ struct pmap *pmap;
* reference count is zero, free pmap resources and then free pmap.
*/
pmap_release(pmap);
free((caddr_t)pmap, M_VMPMAP);
pool_put(&pmap_pmap_pool, pmap);
/*
* done: pmap is gone!