diff options
Diffstat (limited to 'sys/vm/vm_page.c')
| -rw-r--r-- | sys/vm/vm_page.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index c8f7517..0fb05fa 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91 - * $Id: vm_page.c,v 1.95 1998/03/07 21:37:13 dyson Exp $ + * $Id: vm_page.c,v 1.96 1998/03/08 06:27:30 dyson Exp $ */ /* @@ -1427,7 +1427,12 @@ vm_page_bits(int base, int size) if ((base == 0) && (size >= PAGE_SIZE)) return VM_PAGE_BITS_ALL; + size = (size + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1); + if (size > PAGE_SIZE - base) { + size = PAGE_SIZE - base; + } + base = (base % PAGE_SIZE) / DEV_BSIZE; chunk = vm_page_dev_bsize_chunks[size / DEV_BSIZE]; return (chunk << base) & VM_PAGE_BITS_ALL; @@ -1463,6 +1468,7 @@ vm_page_set_invalid(m, base, size) m->valid &= ~(bits = vm_page_bits(base, size)); if (m->valid == 0) m->dirty &= ~bits; + m->object->generation++; } /* |
