Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753927AbdFVXYE (ORCPT ); Thu, 22 Jun 2017 19:24:04 -0400 Received: from mail-pg0-f48.google.com ([74.125.83.48]:34141 "EHLO mail-pg0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752832AbdFVXYD (ORCPT ); Thu, 22 Jun 2017 19:24:03 -0400 From: Khazhismel Kumykov To: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Khazhismel Kumykov Subject: [PATCH] ext4: Return EIO on read error in ext4_find_entry Date: Thu, 22 Jun 2017 16:23:07 -0700 Message-Id: <20170622232307.48392-1-khazhy@google.com> X-Mailer: git-send-email 2.13.1.611.g7e3b11ae1-goog Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="94eb2c18aabcb038e8055294c7b3" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7770 Lines: 125 --94eb2c18aabcb038e8055294c7b3 Previously, a read error would be ignored and we would eventually return NULL from ext4_find_entry, which signals "no such file or directory". We should be returning EIO. Signed-off-by: Khazhismel Kumykov --- fs/ext4/namei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 404256caf9cf..6fa17e9f7b6d 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1428,11 +1428,11 @@ static struct buffer_head * ext4_find_entry (struct inode *dir, goto next; wait_on_buffer(bh); if (!buffer_uptodate(bh)) { - /* read error, skip block & hope for the best */ EXT4_ERROR_INODE(dir, "reading directory lblock %lu", (unsigned long) block); brelse(bh); - goto next; + ret = ERR_PTR(-EIO); + goto cleanup_and_exit; } if (!buffer_verified(bh) && !is_dx_internal_node(dir, block, -- 2.13.1.611.g7e3b11ae1-goog --94eb2c18aabcb038e8055294c7b3 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIS5wYJKoZIhvcNAQcCoIIS2DCCEtQCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg 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