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Properly synchronize access to the pmap in pmap_extract_and_hold().

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Eliminate an unneeded variable from pmap_extract_and_hold().

Tested by: cognet@
This commit is contained in:
Alan Cox 2006-06-07 17:14:48 +00:00
parent 94a5f43620
commit 7a5f63430e
1 changed files with 2 additions and 3 deletions
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5
sys/arm/arm/pmap.c
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@ -3720,17 +3720,16 @@ vm_page_t
pmap_extract_and_hold(pmap_t pmap, vm_offset_t va, vm_prot_t prot)
{
struct l2_dtable *l2;
pd_entry_t *pl1pd, l1pd;
pd_entry_t l1pd;
pt_entry_t *ptep, pte;
vm_paddr_t pa;
vm_page_t m = NULL;
u_int l1idx;
l1idx = L1_IDX(va);
pl1pd = &pmap->pm_l1->l1_kva[l1idx];
l1pd = *pl1pd;
vm_page_lock_queues();
PMAP_LOCK(pmap);
l1pd = pmap->pm_l1->l1_kva[l1idx];
if (l1pte_section_p(l1pd)) {
/*
* These should only happen for pmap_kernel()