[PATCH] d_bucket initialisation simplification

The recent nfsd fix was too fancy.  When initialising d_bucket to an "invalid"
value, all we need is a NULL in there.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/dcache.c

@@ -851,7 +851,7 @@ struct dentry * d_alloc_anon(struct inode *inode)
 			 * Set d_bucket to an "impossible" bucket address so
 			 * that d_move() doesn't get a false positive
 			 */
-			res->d_bucket = dentry_hashtable + D_HASHMASK + 1;
+			res->d_bucket = NULL;
 			res->d_flags |= DCACHE_DISCONNECTED;
 			res->d_flags &= ~DCACHE_UNHASHED;
 			list_add(&res->d_alias, &inode->i_dentry);