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Change v_usecount & v_writecount from a short to an int. As shorts they

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can and will overflow on large machines - especially on machines with
filesystems with lots of files (like netnews servers), and the result
is a "free vnode isn't" panic or worse.
This fixes one of the causes of these panics that I've been experiancing on
wcarchive.
This commit is contained in:
David Greenman 1996-03-29 06:39:39 +00:00
parent 46268a606f
commit e206cebf59
1 changed files with 4 additions and 4 deletions
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8
sys/sys/vnode.h
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)vnode.h 8.7 (Berkeley) 2/4/94
* $Id: vnode.h,v 1.30 1996/01/30 23:01:34 mpp Exp $
* $Id: vnode.h,v 1.31 1996/03/03 18:51:33 peter Exp $
*/
#ifndef _SYS_VNODE_H_
@ -71,9 +71,9 @@ typedef int vop_t __P((void *));
struct vnode {
u_long v_flag; /* vnode flags (see below) */
short v_usecount; /* reference count of users */
short v_writecount; /* reference count of writers */
long v_holdcnt; /* page & buffer references */
int v_usecount; /* reference count of users */
int v_writecount; /* reference count of writers */
int v_holdcnt; /* page & buffer references */
daddr_t v_lastr; /* last read (read-ahead) */
u_long v_id; /* capability identifier */
struct mount *v_mount; /* ptr to vfs we are in */