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o Lock page queue accesses by pmap_release_free_page().

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This commit is contained in:
Alan Cox 2002-07-30 06:45:39 +00:00
parent 61f869600d
commit bfd2867046
2 changed files with 4 additions and 0 deletions
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2
sys/amd64/amd64/pmap.c
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@ -1268,6 +1268,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
if (vm_page_sleep_busy(p, FALSE, "pmaprl"))
return 0;
vm_page_lock_queues();
vm_page_busy(p);
/*
@ -1298,6 +1299,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
p->wire_count--;
cnt.v_wire_count--;
vm_page_free_zero(p);
vm_page_unlock_queues();
return 1;
}

2
sys/i386/i386/pmap.c
View file

@ -1268,6 +1268,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
if (vm_page_sleep_busy(p, FALSE, "pmaprl"))
return 0;
vm_page_lock_queues();
vm_page_busy(p);
/*
@ -1298,6 +1299,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
p->wire_count--;
cnt.v_wire_count--;
vm_page_free_zero(p);
vm_page_unlock_queues();
return 1;
}