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 923D8C00140 for ; Mon, 15 Aug 2022 18:47:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243905AbiHOSrt (ORCPT ); Mon, 15 Aug 2022 14:47:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37220 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242039AbiHOSmg (ORCPT ); Mon, 15 Aug 2022 14:42:36 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEF4F2B62E; Mon, 15 Aug 2022 11:26:26 -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 ams.source.kernel.org (Postfix) with ESMTPS id 63AAEB8107B; Mon, 15 Aug 2022 18:26:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4425C433D6; Mon, 15 Aug 2022 18:26:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660587984; bh=QHdUGgQf2J57RM/QS1DJ+baT8eAIsJdSK29InXdY5X0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uv7jK/glguqTyJJR3pTqlDm8iFLBOSj1Z7lp/XCFX1vE1pFchMHGHmau3WrLGHD3H r/FMry3AmwrNMQ8B6tqI20+Tp497Sikk44xWzOKSkP0vJFKS6OUqkNI/er7dK1xyfW KcNhhE//LaXOI635UYhqeW2izaH+wH1TZvz9QbtY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mike Snitzer , Sasha Levin Subject: [PATCH 5.15 227/779] dm: return early from dm_pr_call() if DM device is suspended Date: Mon, 15 Aug 2022 19:57:51 +0200 Message-Id: <20220815180346.997801237@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@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 36449422e7e0..41d2e1285c07 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2911,6 +2911,11 @@ 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