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- Make allpmaps static.

Browse source 
- Use atomic subtract to update the global wired pages count.  (See
   also vm/vm_page.c revision 1.233.)
 - Assert that the page queue lock is held in pmap_remove_entry().
This commit is contained in:
Alan Cox 2003-02-03 00:05:11 +00:00
parent e61838b128
commit ca380469a2
2 changed files with 8 additions and 6 deletions
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7
sys/amd64/amd64/pmap.c
View file

@ -151,7 +151,7 @@ static int protection_codes[8];
struct pmap kernel_pmap_store;
LIST_HEAD(pmaplist, pmap);
struct pmaplist allpmaps;
static struct pmaplist allpmaps;
vm_offset_t avail_start; /* PA of first available physical page */
vm_offset_t avail_end; /* PA of last available physical page */
@ -1180,7 +1180,7 @@ _pmap_unwire_pte_hold(pmap_t pmap, vm_page_t m)
if (m->wire_count == 0) {
vm_page_busy(m);
vm_page_free_zero(m);
--cnt.v_wire_count;
atomic_subtract_int(&cnt.v_wire_count, 1);
}
return 1;
}
@ -1353,7 +1353,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
pmap->pm_ptphint = NULL;
p->wire_count--;
cnt.v_wire_count--;
atomic_subtract_int(&cnt.v_wire_count, 1);
vm_page_free_zero(p);
vm_page_unlock_queues();
return 1;
@ -1639,6 +1639,7 @@ pmap_remove_entry(pmap_t pmap, vm_page_t m, vm_offset_t va)
int s;
s = splvm();
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
if (m->md.pv_list_count < pmap->pm_stats.resident_count) {
TAILQ_FOREACH(pv, &m->md.pv_list, pv_list) {
if (pmap == pv->pv_pmap && va == pv->pv_va)

7
sys/i386/i386/pmap.c
View file

@ -151,7 +151,7 @@ static int protection_codes[8];
struct pmap kernel_pmap_store;
LIST_HEAD(pmaplist, pmap);
struct pmaplist allpmaps;
static struct pmaplist allpmaps;
vm_offset_t avail_start; /* PA of first available physical page */
vm_offset_t avail_end; /* PA of last available physical page */
@ -1180,7 +1180,7 @@ _pmap_unwire_pte_hold(pmap_t pmap, vm_page_t m)
if (m->wire_count == 0) {
vm_page_busy(m);
vm_page_free_zero(m);
--cnt.v_wire_count;
atomic_subtract_int(&cnt.v_wire_count, 1);
}
return 1;
}
@ -1353,7 +1353,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
pmap->pm_ptphint = NULL;
p->wire_count--;
cnt.v_wire_count--;
atomic_subtract_int(&cnt.v_wire_count, 1);
vm_page_free_zero(p);
vm_page_unlock_queues();
return 1;
@ -1639,6 +1639,7 @@ pmap_remove_entry(pmap_t pmap, vm_page_t m, vm_offset_t va)
int s;
s = splvm();
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
if (m->md.pv_list_count < pmap->pm_stats.resident_count) {
TAILQ_FOREACH(pv, &m->md.pv_list, pv_list) {
if (pmap == pv->pv_pmap && va == pv->pv_va)