Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753436AbaBGQxo (ORCPT ); Fri, 7 Feb 2014 11:53:44 -0500 Received: from mail-ee0-f50.google.com ([74.125.83.50]:57133 "EHLO mail-ee0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752885AbaBGQst (ORCPT ); Fri, 7 Feb 2014 11:48:49 -0500 From: Miklos Szeredi To: viro@ZenIV.linux.org.uk, torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, bfields@fieldses.org, hch@infradead.org, akpm@linux-foundation.org, dhowells@redhat.com, zab@redhat.com, jack@suse.cz, luto@amacapital.net, mszeredi@suse.cz Subject: [PATCH 10/13] ext4: rename: move EMLINK check up Date: Fri, 7 Feb 2014 17:49:08 +0100 Message-Id: <1391791751-2533-11-git-send-email-miklos@szeredi.hu> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1391791751-2533-1-git-send-email-miklos@szeredi.hu> References: <1391791751-2533-1-git-send-email-miklos@szeredi.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Miklos Szeredi Move checking i_nlink from after ext4_get_first_dir_block() to before. The check doesn't rely on the result of that function and the function only fails on fs corruption, so the order shouldn't matter. Signed-off-by: Miklos Szeredi Reviewed-by: Jan Kara --- fs/ext4/namei.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 7193cea805ff..87a8a6e613ba 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3084,6 +3084,10 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, retval = -ENOTEMPTY; if (!empty_dir(new.inode)) goto end_rename; + } else { + retval = -EMLINK; + if (new.dir != old.dir && EXT4_DIR_LINK_MAX(new.dir)) + goto end_rename; } retval = -EIO; old.dir_bh = ext4_get_first_dir_block(handle, old.inode, @@ -3093,10 +3097,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, goto end_rename; if (le32_to_cpu(old.parent_de->inode) != old.dir->i_ino) goto end_rename; - retval = -EMLINK; - if (!new.inode && new.dir != old.dir && - EXT4_DIR_LINK_MAX(new.dir)) - goto end_rename; BUFFER_TRACE(old.dir_bh, "get_write_access"); retval = ext4_journal_get_write_access(handle, old.dir_bh); if (retval) -- 1.8.1.4 -- 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/