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Relax the page queue lock assertions in vm_page_remove() and

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vm_page_free_toq() to account for recent changes that allow
vm_page_free_toq() to be called on some pages without the page queues lock
being held, specifically, pages that are not contained in a vm object and
not a member of a page queue.  (Examples of such pages include page table
pages, pv entry pages, and uma small alloc pages.)
This commit is contained in:
alc 2007-02-15 05:43:38 +00:00
parent c81388536c
commit 3e7d1b7ebd
1 changed files with 3 additions and 2 deletions
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5
sys/vm/vm_page.c
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@ -691,7 +691,6 @@ vm_page_remove(vm_page_t m)
vm_object_t object;
vm_page_t root;
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
if ((object = m->object) == NULL)
return;
VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
@ -699,6 +698,7 @@ vm_page_remove(vm_page_t m)
m->oflags &= ~VPO_BUSY;
vm_page_flash(m);
}
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
/*
* Now remove from the object's list of backed pages.
@ -1101,7 +1101,8 @@ vm_page_free_toq(vm_page_t m)
{
struct vpgqueues *pq;
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
if (VM_PAGE_GETQUEUE(m) != PQ_NONE)
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
KASSERT(!pmap_page_is_mapped(m),
("vm_page_free_toq: freeing mapped page %p", m));
cnt.v_tfree++;