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For MAP_ANON, force the file offset to 0. I can't think of any any bad side 

effects of this, and it fixes an interesting bug.
This commit is contained in:
mycroft 1994-05-19 18:03:04 +00:00
parent d8713176c8
commit 72edd4b918
1 changed files with 4 additions and 3 deletions
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7
sys/vm/vm_mmap.c
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@ -37,7 +37,7 @@
*
* from: Utah Hdr: vm_mmap.c 1.3 90/01/21
* from: @(#)vm_mmap.c 7.5 (Berkeley) 6/28/91
* $Id: vm_mmap.c,v 1.26 1994/05/07 00:39:58 cgd Exp $
* $Id: vm_mmap.c,v 1.27 1994/05/19 18:03:04 mycroft Exp $
*/
/*
@ -577,9 +577,10 @@ vm_mmap(map, addr, size, prot, maxprot, flags, handle, foff)
* gain a reference to ensure continued existance of the object.
* (XXX the exception is to appease the pageout daemon)
*/
if (flags & MAP_ANON)
if (flags & MAP_ANON) {
type = PG_DFLT;
else {
foff = 0;
} else {
vp = (struct vnode *)handle;
if (vp->v_type == VCHR) {
type = PG_DEVICE;