From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8810FC00140 for ; Mon, 15 Aug 2022 20:54:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241436AbiHOUyj (ORCPT ); Mon, 15 Aug 2022 16:54:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346758AbiHOUyD (ORCPT ); Mon, 15 Aug 2022 16:54:03 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9F1663A4A5; Mon, 15 Aug 2022 12:10:54 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 337B160EEE; Mon, 15 Aug 2022 19:10:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 242B4C433D7; Mon, 15 Aug 2022 19:10:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660590641; bh=MQPmSWW6qeTKmvxX5Idg4ZN9rJsHVGsA5UzbeucL58s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KKn8DHCgI1dbV5KK5J2/NtEQAQMDTXn3t90mZM29qedn27oUtvIHr0SFuT32YTDDe 5yyLAYJCv7adyZtXS1JrtJCG/x8Ad4YWhVNSQ69sptdmpaOHL/hhOmbkluvUys1Veu PwBSle+NlyKDLiMyz6atAllrwaSTA02AvFNLD/c4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mike Snitzer , Sasha Levin Subject: [PATCH 5.18 0297/1095] dm: return early from dm_pr_call() if DM device is suspended Date: Mon, 15 Aug 2022 19:54:56 +0200 Message-Id: <20220815180442.052684666@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180429.240518113@linuxfoundation.org> References: <20220815180429.240518113@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mike Snitzer [ Upstream commit e120a5f1e78fab6223544e425015f393d90d6f0d ] Otherwise PR ops may be issued while the broader DM device is being reconfigured, etc. Fixes: 9c72bad1f31a ("dm: call PR reserve/unreserve on each underlying device") Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/dm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index f01d33bc3613..e0e28a3203f8 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2955,6 +2955,11 @@ static int dm_call_pr(struct block_device *bdev, iterate_devices_callout_fn fn, goto out; ti = dm_table_get_target(table, 0); + if (dm_suspended_md(md)) { + ret = -EAGAIN; + goto out; + } + ret = -EINVAL; if (!ti->type->iterate_devices) goto out; -- 2.35.1