keep track of vnode size changes.

[unix-history] / usr / src / sys / miscfs / union / union.h

diff --git a/usr/src/sys/miscfs/union/union.h b/usr/src/sys/miscfs/union/union.h
index f60545f..11cbab1 100644 (file)
--- a/usr/src/sys/miscfs/union/union.h
+++ b/usr/src/sys/miscfs/union/union.h
@@ -8,7 +8,7 @@
  *
  * %sccs.include.redist.c%
  *
  *
  * %sccs.include.redist.c%
  *

- *     @(#)union.h     8.3 (Berkeley) %G%
+ *     @(#)union.h     8.4 (Berkeley) %G%

  */
 
 struct union_args {
  */
 
 struct union_args {


@@ -52,6 +52,8 @@ struct union_node {
        int                     un_hash;        /* saved un_path hash value */
        int                     un_openl;       /* # of opens on lowervp */
        unsigned int            un_flags;
        int                     un_hash;        /* saved un_path hash value */
        int                     un_openl;       /* # of opens on lowervp */
        unsigned int            un_flags;

+       off_t                   un_uppersz;     /* size of upper object */
+       off_t                   un_lowersz;     /* size of lower object */

 #ifdef DIAGNOSTIC
        pid_t                   un_pid;
 #endif
 #ifdef DIAGNOSTIC
        pid_t                   un_pid;
 #endif


@@ -79,6 +81,7 @@ extern void union_removed_upper __P((struct union_node *un));
 extern struct vnode *union_lowervp __P((struct vnode *));
 extern void union_newlower __P((struct union_node *, struct vnode *));
 extern void union_newupper __P((struct union_node *, struct vnode *));
 extern struct vnode *union_lowervp __P((struct vnode *));
 extern void union_newlower __P((struct union_node *, struct vnode *));
 extern void union_newupper __P((struct union_node *, struct vnode *));

+extern void union_newsize __P((struct vnode *, off_t, off_t));

 
 #define        MOUNTTOUNIONMOUNT(mp) ((struct union_mount *)((mp)->mnt_data))
 #define        VTOUNION(vp) ((struct union_node *)(vp)->v_data)
 
 #define        MOUNTTOUNIONMOUNT(mp) ((struct union_mount *)((mp)->mnt_data))
 #define        VTOUNION(vp) ((struct union_node *)(vp)->v_data)