From nobody Fri Sep 5 20:12:17 2025 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 0FB1DC32772 for ; Tue, 23 Aug 2022 11:24:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240422AbiHWLYr (ORCPT ); Tue, 23 Aug 2022 07:24:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357167AbiHWLRv (ORCPT ); Tue, 23 Aug 2022 07:17:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCE8B89916; Tue, 23 Aug 2022 02:21:57 -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 5BD286121F; Tue, 23 Aug 2022 09:21:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 60242C433D6; Tue, 23 Aug 2022 09:21:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661246516; bh=z2KsKmvUXMXfT2f7bViXHF0IDb6f8YwBfdHqkWlYSsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SRT3YdTjBuSCG6NHNF/qjZ6ZKKTMyKeBt/HIm8gL79cAa1hHgcgRbRx3q66vAFckC WRyCD+anS8/5IEJ0nvGzTK0d444rAWTBxpD/C/waAHmCS2L3kBcKtLLYJ5Tnv2g17r 4RO8Y5hQ8tIJzUXEe59+e2GRwiBN01bwlVjI+7GA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mike Snitzer , Sasha Levin Subject: [PATCH 5.4 094/389] dm: return early from dm_pr_call() if DM device is suspended Date: Tue, 23 Aug 2022 10:22:52 +0200 Message-Id: <20220823080119.543813491@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220823080115.331990024@linuxfoundation.org> References: <20220823080115.331990024@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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 devi= ce") 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 77e28f77c59f..d4cebb38709b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3080,6 +3080,11 @@ static int dm_call_pr(struct block_device *bdev, ite= rate_devices_callout_fn fn, goto out; ti =3D dm_table_get_target(table, 0); =20 + if (dm_suspended_md(md)) { + ret =3D -EAGAIN; + goto out; + } + ret =3D -EINVAL; if (!ti->type->iterate_devices) goto out; --=20 2.35.1