From patchwork Tue May 5 05:21:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 6334031 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D2F9EBEEE1 for ; Tue, 5 May 2015 05:23:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0597620266 for ; Tue, 5 May 2015 05:23:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A5CF20256 for ; Tue, 5 May 2015 05:23:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755732AbbEEFXe (ORCPT ); Tue, 5 May 2015 01:23:34 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:40090 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755546AbbEEFXU (ORCPT ); Tue, 5 May 2015 01:23:20 -0400 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.76 #1 (Red Hat Linux)) id 1YpVJm-0001In-EI; Tue, 05 May 2015 05:22:54 +0000 From: Al Viro To: Linus Torvalds Cc: Neil Brown , Christoph Hellwig , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 09/79] ext4: switch to simple_follow_link() Date: Tue, 5 May 2015 06:21:43 +0100 Message-Id: <1430803373-4948-9-git-send-email-viro@ZenIV.linux.org.uk> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <20150505052205.GS889@ZenIV.linux.org.uk> References: <20150505052205.GS889@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=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 for fast symlinks only, of course... Signed-off-by: Al Viro Reviewed-by: Jan Kara --- fs/ext4/inode.c | 1 + fs/ext4/namei.c | 4 +++- fs/ext4/symlink.c | 9 +-------- 3 files changed, 5 insertions(+), 9 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a320558..aba562b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4219,6 +4219,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) BUILD_BUG(); #endif } else if (ext4_inode_is_fast_symlink(inode)) { + inode->i_link = (char *)ei->i_data; inode->i_op = &ext4_fast_symlink_inode_operations; nd_terminate_link(ei->i_data, inode->i_size, sizeof(ei->i_data) - 1); diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 84b1920..99017eb 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3311,8 +3311,10 @@ static int ext4_symlink(struct inode *dir, } else { /* clear the extent format for fast symlink */ ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS); - if (!encryption_required) + if (!encryption_required) { inode->i_op = &ext4_fast_symlink_inode_operations; + inode->i_link = (char *)&EXT4_I(inode)->i_data; + } memcpy((char *)&EXT4_I(inode)->i_data, disk_link.name, disk_link.len); inode->i_size = disk_link.len - 1; diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c index 4ea5a01..1720a13 100644 --- a/fs/ext4/symlink.c +++ b/fs/ext4/symlink.c @@ -106,13 +106,6 @@ const struct inode_operations ext4_encrypted_symlink_inode_operations = { }; #endif -static void *ext4_follow_fast_link(struct dentry *dentry, struct nameidata *nd) -{ - struct ext4_inode_info *ei = EXT4_I(d_inode(dentry)); - nd_set_link(nd, (char *) ei->i_data); - return NULL; -} - const struct inode_operations ext4_symlink_inode_operations = { .readlink = generic_readlink, .follow_link = page_follow_link_light, @@ -126,7 +119,7 @@ const struct inode_operations ext4_symlink_inode_operations = { const struct inode_operations ext4_fast_symlink_inode_operations = { .readlink = generic_readlink, - .follow_link = ext4_follow_fast_link, + .follow_link = simple_follow_link, .setattr = ext4_setattr, .setxattr = generic_setxattr, .getxattr = generic_getxattr,