together with vfs_syscalls.c add reference checking

SCCS-vsn: sys/kern/vfs_subr.c 7.67.1.1

diff --git a/usr/src/sys/kern/vfs_subr.c b/usr/src/sys/kern/vfs_subr.c
index c52dead..799cc0c 100644 (file)
--- a/usr/src/sys/kern/vfs_subr.c
+++ b/usr/src/sys/kern/vfs_subr.c
@@ -4,7 +4,7 @@
  *
  * %sccs.include.redist.c%
  *
  *
  * %sccs.include.redist.c%
  *

- *     @(#)vfs_subr.c  7.67 (Berkeley) %G%
+ *     @(#)vfs_subr.c  7.67.1.1 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -647,6 +647,8 @@ vget(vp)
        return (0);
 }
 
        return (0);
 }
 

+int bug_refs = 0;
+

 /*
  * Vnode reference, just increment the count
  */
 /*
  * Vnode reference, just increment the count
  */


@@ -655,6 +657,10 @@ void vref(vp)
 {
 
        vp->v_usecount++;
 {
 
        vp->v_usecount++;

+       if (vp->v_type != VBLK && curproc)
+               curproc->p_spare[0]++;
+       if (bug_refs)
+               vprint("vref: ");

 }
 
 /*
 }
 
 /*


@@ -681,6 +687,10 @@ void vrele(vp)
                panic("vrele: null vp");
 #endif
        vp->v_usecount--;
                panic("vrele: null vp");
 #endif
        vp->v_usecount--;

+       if (vp->v_type != VBLK && curproc)
+               curproc->p_spare[0]--;
+       if (bug_refs)
+               vprint("vref: ");

        if (vp->v_usecount > 0)
                return;
 #ifdef DIAGNOSTIC
        if (vp->v_usecount > 0)
                return;
 #ifdef DIAGNOSTIC