From: Greg KH Subject: Re: [RFC v4+ hot_track 13/19] debugfs: introduce one function Date: Mon, 29 Oct 2012 15:34:04 -0700 Message-ID: <20121029223404.GA20486@kroah.com> References: <1351485061-12297-1-git-send-email-zwu.kernel@gmail.com> <1351485061-12297-14-git-send-email-zwu.kernel@gmail.com> <20121029181135.GB3605@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linuxram@linux.vnet.ibm.com, viro@zeniv.linux.org.uk, david@fromorbit.com, tytso@mit.edu, cmm@us.ibm.com, wuzhy@linux.vnet.ibm.com, wenqing.lz@taobao.com To: Zhi Yong Wu Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Tue, Oct 30, 2012 at 06:25:50AM +0800, Zhi Yong Wu wrote: > On Tue, Oct 30, 2012 at 2:11 AM, Greg KH wrote: > > On Mon, Oct 29, 2012 at 12:30:55PM +0800, zwu.kernel@gmail.com wrote: > >> From: Zhi Yong Wu > >> > >> The debugfs function is used to get expected dentry. > > > > Huh? Why do you need this? Why haven't you added documentation for the > It is used to determine if one sysfs directory has been created. OK, i > will add some doc, thanks for your suggestion. You didn't answer the "why" part here. How come you think you need this? Can't you just save off the dentry you created somewhere so you don't need to look it up again? greg k-h