Author: kib
Date: Tue Nov 12 08:47:58 2013
New Revision: 258039
URL: http://svnweb.freebsd.org/changeset/base/258039
Log:
Avoid overflow for the page counts.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Modified:
head/sys/kern/vfs_vnops.c
head/sys/vm/vm_fault.c
Modified: head/sys/kern/vfs_vnops.c
==============================================================================
--- head/sys/kern/vfs_vnops.c Tue Nov 12 08:32:10 2013 (r258038)
+++ head/sys/kern/vfs_vnops.c Tue Nov 12 08:47:58 2013 (r258039)
@@ -933,8 +933,9 @@ vn_io_fault(struct file *fp, struct uio
void *rl_cookie;
struct mount *mp;
vm_page_t *prev_td_ma;
- int cnt, error, save, saveheld, prev_td_ma_cnt;
+ int error, save, saveheld, prev_td_ma_cnt;
vm_offset_t addr, end;
+ vm_size_t cnt;
vm_prot_t prot;
size_t len, resid;
ssize_t adv;
Modified: head/sys/vm/vm_fault.c
==============================================================================
--- head/sys/vm/vm_fault.c Tue Nov 12 08:32:10 2013 (r258038)
+++ head/sys/vm/vm_fault.c Tue Nov 12 08:47:58 2013 (r258039)
@@ -1074,7 +1074,7 @@ vm_fault_quick_hold_pages(vm_map_t map,
{
vm_offset_t end, va;
vm_page_t *mp;
- int count;
+ vm_size_t count;
boolean_t pmap_failed;
if (len == 0)
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