From patchwork Fri May 15 07:20:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chengguang Xu X-Patchwork-Id: 11550675 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DB543739 for ; Fri, 15 May 2020 07:37:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BA35C206F4 for ; Fri, 15 May 2020 07:37:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mykernel.net header.i=cgxu519@mykernel.net header.b="ED37Aywm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726728AbgEOHhj (ORCPT ); Fri, 15 May 2020 03:37:39 -0400 Received: from sender2-of-o52.zoho.com.cn ([163.53.93.247]:21145 "EHLO sender2-of-o52.zoho.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726715AbgEOHhh (ORCPT ); Fri, 15 May 2020 03:37:37 -0400 ARC-Seal: i=1; a=rsa-sha256; t=1589527309; cv=none; d=zoho.com.cn; s=zohoarc; b=ipnm8/fT9xfvgU32eK3enUxfv51FtuGieLits0tW1hs0QDvi0+/Gr56Sf9bhAkIT1ND+ZnvvMWZaOqCUXMGE/4MKzul+kn3MLNhYV2bgQQ57kVaoOk1tIhI80jF4y6dEfW+nndUBF9xjZ5LTuXvl2oJK1M6ZrRZ8S2QPOxL9QXw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com.cn; s=zohoarc; t=1589527309; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=/zcjwUOZSvHEU5HoCVl0NjoEfg5VSqwCmmFmmBKUM6w=; b=RnSnIEETkAF6q1mlR4euULZQUa78Cm0mx0g8wCn4mzdWu1CaCVLZMRbY2B9Rxa4BnaMEbAbgrYiRPD/SFD7LnvMHuyAjlSM/I37kKYPR3zYB8wXngSO17c7k3L0Uz+UeZpjEBNUKvjUbnhshKaerWyB/iFqBwSS6HSYiYq7RNjo= ARC-Authentication-Results: i=1; mx.zoho.com.cn; dkim=pass header.i=mykernel.net; spf=pass smtp.mailfrom=cgxu519@mykernel.net; dmarc=pass header.from= header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1589527309; s=zohomail; d=mykernel.net; i=cgxu519@mykernel.net; h=From:To:Cc:Message-ID:Subject:Date:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Content-Type; bh=/zcjwUOZSvHEU5HoCVl0NjoEfg5VSqwCmmFmmBKUM6w=; b=ED37Aywmz3hf7x4KDbLYGuS/ahKrdfTpnKku+vMpyMz6HPwGABdHuWzabzcK8NKo Z3peuW/nYgI4R82luUG7skJkKeYNJ4Jj/QJ/t1/u0ZCY5TQNUgSxVn3Zm4jWfN61wXh 5lF5a5LsWMOpHLuGYujqpijpRwP/db8wom6Khv4Q= Received: from localhost.localdomain (218.18.229.179 [218.18.229.179]) by mx.zoho.com.cn with SMTPS id 1589527306843634.123449457146; Fri, 15 May 2020 15:21:46 +0800 (CST) From: Chengguang Xu To: miklos@szeredi.hu, viro@zeniv.linux.org.uk, amir73il@gmail.com Cc: linux-fsdevel@vger.kernel.org, linux-unionfs@vger.kernel.org, Chengguang Xu Message-ID: <20200515072047.31454-8-cgxu519@mykernel.net> Subject: [RFC PATCH v3 7/9] kernfs: Adjust argument for lookup_positive_unlocked() Date: Fri, 15 May 2020 15:20:45 +0800 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200515072047.31454-1-cgxu519@mykernel.net> References: <20200515072047.31454-1-cgxu519@mykernel.net> MIME-Version: 1.0 X-ZohoCNMailClient: External Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Set 0 as lookup flag argument when calling lookup_positive_unlocked(), because we don't hope to drop negative dentry in lookup. Signed-off-by: Chengguang Xu --- fs/kernfs/mount.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c index 9dc7e7a64e10..3162d2bf39b3 100644 --- a/fs/kernfs/mount.c +++ b/fs/kernfs/mount.c @@ -224,7 +224,7 @@ struct dentry *kernfs_node_dentry(struct kernfs_node *kn, return ERR_PTR(-EINVAL); } dtmp = lookup_positive_unlocked(kntmp->name, dentry, - strlen(kntmp->name)); + strlen(kntmp->name), 0); dput(dentry); if (IS_ERR(dtmp)) return dtmp;