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Fully initialize pages returned via vm_page_alloc_contig() so that the

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memory can be later freed.
This commit is contained in:
David Greenman 1995-02-20 13:58:14 +00:00
parent 304bce7fcf
commit d89ced81b2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=6565
1 changed files with 13 additions and 4 deletions
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17
sys/vm/vm_page.c
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id: vm_page.c,v 1.17 1995/01/24 10:13:35 davidg Exp $
* $Id: vm_page.c,v 1.18 1995/02/02 09:09:05 davidg Exp $
*/
/*
@ -755,10 +755,19 @@ again:
tmp_addr = addr = kmem_alloc_pageable(kernel_map, size);
for (i = start; i < (start + size / PAGE_SIZE); i++) {
TAILQ_REMOVE(&vm_page_queue_free, &pga[i], pageq);
vm_page_t m = &pga[i];;
TAILQ_REMOVE(&vm_page_queue_free, m, pageq);
cnt.v_free_count--;
vm_page_wire(&pga[i]);
vm_page_set_clean(&pga[i], 0, PAGE_SIZE);
m->valid = VM_PAGE_BITS_ALL;
m->flags = 0;
m->dirty = 0;
m->wire_count = 0;
m->act_count = 0;
m->bmapped = 0;
m->busy = 0;
vm_page_insert(m, kernel_object, tmp_addr - VM_MIN_KERNEL_ADDRESS);
vm_page_wire(m);
pmap_kenter(tmp_addr, VM_PAGE_TO_PHYS(&pga[i]));
tmp_addr += PAGE_SIZE;
}