From patchwork Sat Apr 16 00:55:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 8860541 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2A46F9F3A0 for ; Sat, 16 Apr 2016 00:56:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 671F82026C for ; Sat, 16 Apr 2016 00:56:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 77AD920259 for ; Sat, 16 Apr 2016 00:56:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752771AbcDPAzb (ORCPT ); Fri, 15 Apr 2016 20:55:31 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:39570 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750886AbcDPAz3 (ORCPT ); Fri, 15 Apr 2016 20:55:29 -0400 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.76 #1 (Red Hat Linux)) id 1arEWF-0008Hs-Kx; Sat, 16 Apr 2016 00:55:27 +0000 From: Al Viro To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 02/15] kernfs: use lookup_one_len_unlocked() Date: Sat, 16 Apr 2016 01:55:14 +0100 Message-Id: <1460768127-31822-2-git-send-email-viro@ZenIV.linux.org.uk> X-Mailer: git-send-email 2.7.3 In-Reply-To: <20160416005232.GV25498@ZenIV.linux.org.uk> References: <20160416005232.GV25498@ZenIV.linux.org.uk> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Al Viro Signed-off-by: Al Viro --- fs/kernfs/mount.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c index b67dbcc..e006d30 100644 --- a/fs/kernfs/mount.c +++ b/fs/kernfs/mount.c @@ -120,9 +120,8 @@ struct dentry *kernfs_node_dentry(struct kernfs_node *kn, kntmp = find_next_ancestor(kn, knparent); if (WARN_ON(!kntmp)) return ERR_PTR(-EINVAL); - mutex_lock(&d_inode(dentry)->i_mutex); - dtmp = lookup_one_len(kntmp->name, dentry, strlen(kntmp->name)); - mutex_unlock(&d_inode(dentry)->i_mutex); + dtmp = lookup_one_len_unlocked(kntmp->name, dentry, + strlen(kntmp->name)); dput(dentry); if (IS_ERR(dtmp)) return dtmp;