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Fixed bug that would cause free memory reserves to be depleted and cause a

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panic in some cases.
Submitted by:	John Dyson
This commit is contained in:
dg 1994-08-04 19:43:13 +00:00
parent 89acf22c68
commit 92c719582b
1 changed files with 5 additions and 1 deletions
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6
sys/kern/vfs_bio.c
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@ -16,7 +16,7 @@
* 4. Modifications may be freely made to this file if the above conditions
* are met.
*
* $Id$
* $Id: vfs_bio.c,v 1.4 1994/08/02 07:43:13 davidg Exp $
*/
#include <sys/param.h>
@ -673,6 +673,10 @@ vm_hold_load_pages(vm_offset_t froma, vm_offset_t toa) {
vm_offset_t pa;
tryagain:
if (cnt.v_free_count <= cnt.v_free_reserved) {
VM_WAIT;
goto tryagain;
}
p = vm_page_alloc(kernel_object, pg - VM_MIN_KERNEL_ADDRESS);
if( !p) {
VM_WAIT;