Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752268AbZKTJyM (ORCPT ); Fri, 20 Nov 2009 04:54:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751547AbZKTJyL (ORCPT ); Fri, 20 Nov 2009 04:54:11 -0500 Received: from mail-yx0-f187.google.com ([209.85.210.187]:38119 "EHLO mail-yx0-f187.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750908AbZKTJyK (ORCPT ); Fri, 20 Nov 2009 04:54:10 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=tOw6NBtdX2WvpEcHcKW4rVHN9bvMN0h/edCAxAS0AlmyUyJIWJwHJKMa/IsUkVZeQ2 D+sKLLexO92Ovo/6IxzN1MNd7WCp8UOlDRJOBP6TBis3M2ZZNcOtjRbWaQpe1O+TDuYS t0QEjR1R27U569gCnq0h4Oa+6BDIQwlTvh41g= Message-ID: <4B06677B.9050101@gmail.com> Date: Fri, 20 Nov 2009 17:55:07 +0800 From: "Helight.Xu" User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090701) MIME-Version: 1.0 To: Xiaotian Feng CC: linux-kernel@vger.kernel.org Subject: Re: =?UTF-8?B?5aaC5L2V6YCa6L+HZmTmib7liLDmiZPlvIDmlofku7bnmoTot68=?= =?UTF-8?B?5b6E5Y+K5ZCN56ew?= References: <4B06384C.2080703@gmail.com> <7b6bb4a50911200012s67b28e58g8109b71479ef4257@mail.gmail.com> In-Reply-To: <7b6bb4a50911200012s67b28e58g8109b71479ef4257@mail.gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1320 Lines: 48 Xiaotian Feng wrote: > in fs/open.c > sys_open > | --> do_sys_open > |---> fd_install > > Then fd is installed into file_fdtable > > in fs/file_table.c > fget_light/fget > |----> fcheck_files > > Then kernel get files from fd. > struct file is easy to get : current->files->fd_array[fd] but I didn't find the file name! > 2009/11/20 Helight.Xu : > >> 在用户程序中打开文件进行编辑，那在内核中如何能通过open后的fd >> 来找到相应打开文件的路径及其名字呢？ >> >> -- >> --------------------------------- >> Zhenwen Xu - Open and Free >> Home Page: http://zhwen.org >> >> -- >> 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/ >> >> > > -- --------------------------------- Zhenwen Xu - Open and Free Home Page: http://zhwen.org -- 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/