Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750753AbWEWQ4G (ORCPT ); Tue, 23 May 2006 12:56:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750902AbWEWQ4G (ORCPT ); Tue, 23 May 2006 12:56:06 -0400 Received: from ms-smtp-02.nyroc.rr.com ([24.24.2.56]:44520 "EHLO ms-smtp-02.nyroc.rr.com") by vger.kernel.org with ESMTP id S1750753AbWEWQ4F (ORCPT ); Tue, 23 May 2006 12:56:05 -0400 Subject: [Question] how to follow a symlink via a dentry? From: Steven Rostedt To: LKML Content-Type: text/plain Date: Tue, 23 May 2006 12:56:03 -0400 Message-Id: <1148403363.22855.8.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.4.2.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 941 Lines: 27 What is the best way from inside the kernel, to find the dentry that another dentry points to via symlink? Scenario: I have a kobj of a device in the sysfs system. Inside a directory of the kobj, is a symlink to another device I need to get. I can find the dentry of the symlink, but I haven't found a good way to get to the dentry of what the symlink points to. Is there a standard way to do this, or do I need to start hacking at the follow_link of the sysfs directory to get what I want? Do I need to hack up something like page_readlink to get the path, and then do vfs_follow_link to get the rest. Another thing is that I can't rely on what current->fs points to. Thanks, -- Steve - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/