From patchwork Mon Mar 1 16:13:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 390194 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDB47C4332D for ; Mon, 1 Mar 2021 16:44:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0AFD64F90 for ; Mon, 1 Mar 2021 16:44:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234855AbhCAQmm (ORCPT ); Mon, 1 Mar 2021 11:42:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:41980 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232124AbhCAQfX (ORCPT ); Mon, 1 Mar 2021 11:35:23 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id DBC9364F6E; Mon, 1 Mar 2021 16:26:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614615967; bh=FhAFLmwM6AvDOXjxWIIAupJmFYCg7bsnc/EYF2o4LeQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oiIY7IAuTdm7EznTU96MGWSUGmgG1zPRqY1r3vyJiQgDy+52illEDIu414pBuH/2q A3Nn25OKS7H3taAp5vF3aXiuBIEczPozsHccPhzsY94aHOqQXOKBtHuDZbxKLY+SBd +ztcto42Af2jHK7/jNzUd2BgxHrK1kVuqJp5oRDM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nikos Tsironis , Ming-Hung Tsai , Mike Snitzer Subject: [PATCH 4.9 123/134] dm era: Use correct value size in equality function of writeset tree Date: Mon, 1 Mar 2021 17:13:44 +0100 Message-Id: <20210301161019.636131504@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161013.585393984@linuxfoundation.org> References: <20210301161013.585393984@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nikos Tsironis commit 64f2d15afe7b336aafebdcd14cc835ecf856df4b upstream. Fix the writeset tree equality test function to use the right value size when comparing two btree values. Fixes: eec40579d84873 ("dm: add era target") Cc: stable@vger.kernel.org # v3.15+ Signed-off-by: Nikos Tsironis Reviewed-by: Ming-Hung Tsai Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-era-target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/md/dm-era-target.c +++ b/drivers/md/dm-era-target.c @@ -389,7 +389,7 @@ static void ws_dec(void *context, const static int ws_eq(void *context, const void *value1, const void *value2) { - return !memcmp(value1, value2, sizeof(struct writeset_metadata)); + return !memcmp(value1, value2, sizeof(struct writeset_disk)); } /*----------------------------------------------------------------*/