9p: switch to %p[dD]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index b03dd23..a345b2d 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -49,8 +49,8 @@
  */
 static int v9fs_cached_dentry_delete(const struct dentry *dentry)
 {
-	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
-		 dentry->d_name.name, dentry);
+	p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
+		 dentry, dentry);
 
 	/* Don't cache negative dentries */
 	if (!dentry->d_inode)
@@ -67,8 +67,8 @@
 static void v9fs_dentry_release(struct dentry *dentry)
 {
 	struct hlist_node *p, *n;
-	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
-		 dentry->d_name.name, dentry);
+	p9_debug(P9_DEBUG_VFS, " dentry: %pd (%p)\n",
+		 dentry, dentry);
 	hlist_for_each_safe(p, n, (struct hlist_head *)&dentry->d_fsdata)
 		p9_client_clunk(hlist_entry(p, struct p9_fid, dlist));
 	dentry->d_fsdata = NULL;