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Simplify pmap_extract()'s control flow, making it more like the related

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functions pmap_extract_and_hold() and pmap_kextract().
This commit is contained in:
Alan Cox 2008-07-18 20:07:50 +00:00
parent 2bb0f7ba54
commit 53d13c6030
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=180600
2 changed files with 9 additions and 11 deletions
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9
sys/amd64/amd64/pmap.c
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@ -986,13 +986,12 @@ pmap_extract(pmap_t pmap, vm_offset_t va)
if (pdep != NULL) {
pde = *pdep;
if (pde) {
if ((pde & PG_PS) != 0) {
if ((pde & PG_PS) != 0)
rtval = (pde & PG_PS_FRAME) | (va & PDRMASK);
PMAP_UNLOCK(pmap);
return rtval;
else {
pte = pmap_pde_to_pte(pdep, va);
rtval = (*pte & PG_FRAME) | (va & PAGE_MASK);
}
pte = pmap_pde_to_pte(pdep, va);
rtval = (*pte & PG_FRAME) | (va & PAGE_MASK);
}
}
PMAP_UNLOCK(pmap);

11
sys/i386/i386/pmap.c
View file

@ -1063,14 +1063,13 @@ pmap_extract(pmap_t pmap, vm_offset_t va)
PMAP_LOCK(pmap);
pde = pmap->pm_pdir[va >> PDRSHIFT];
if (pde != 0) {
if ((pde & PG_PS) != 0) {
if ((pde & PG_PS) != 0)
rtval = (pde & PG_PS_FRAME) | (va & PDRMASK);
PMAP_UNLOCK(pmap);
return rtval;
else {
pte = pmap_pte(pmap, va);
rtval = (*pte & PG_FRAME) | (va & PAGE_MASK);
pmap_pte_release(pte);
}
pte = pmap_pte(pmap, va);
rtval = (*pte & PG_FRAME) | (va & PAGE_MASK);
pmap_pte_release(pte);
}
PMAP_UNLOCK(pmap);
return (rtval);