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Since pmap_pinit() wants a prezeroed page, change it to ask for one. (Note

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that vm_page_grab(), unlike vm_page_alloc(), always returns a prezeroed
page if VM_ALLOC_ZERO is specified.  So, checking is unnecessary.)
This commit is contained in:
Alan Cox 2004-04-26 17:22:07 +00:00
parent 6c0ad4a77a
commit d429eede9f
1 changed files with 1 additions and 4 deletions
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5
sys/alpha/alpha/pmap.c
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@ -1074,7 +1074,7 @@ pmap_pinit(pmap)
*/
VM_OBJECT_LOCK(pmap->pm_pteobj);
lev1pg = vm_page_grab(pmap->pm_pteobj, NUSERLEV3MAPS + NUSERLEV2MAPS,
VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED | VM_ALLOC_ZERO);
vm_page_lock_queues();
vm_page_flag_clear(lev1pg, PG_BUSY);
@ -1083,9 +1083,6 @@ pmap_pinit(pmap)
VM_OBJECT_UNLOCK(pmap->pm_pteobj);
pmap->pm_lev1 = (pt_entry_t*) ALPHA_PHYS_TO_K0SEG(VM_PAGE_TO_PHYS(lev1pg));
if ((lev1pg->flags & PG_ZERO) == 0)
bzero(pmap->pm_lev1, PAGE_SIZE);
/* install self-referential address mapping entry (not PG_ASM) */
pmap->pm_lev1[PTLEV1I] = pmap_phys_to_pte(VM_PAGE_TO_PHYS(lev1pg))