From nobody Wed Dec 17 09:15:04 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 D6946C32772 for ; Tue, 23 Aug 2022 10:38:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355433AbiHWKiq (ORCPT ); Tue, 23 Aug 2022 06:38:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354710AbiHWKWF (ORCPT ); Tue, 23 Aug 2022 06:22:05 -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 20BF56440; Tue, 23 Aug 2022 02:03:26 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 1895561499; Tue, 23 Aug 2022 09:03:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 232D8C433C1; Tue, 23 Aug 2022 09:03:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661245405; bh=EeBB5HggqEsJGqx0uHZ8rWSlljvoPfmqgZe5hO3GUs4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jp9YTX2U8bPrgbMdnSNQP16OJUyWmQVX3PsakaECt2QJwHiacrtT1pPL3zU+FaaK4 +04Y4TDLCr/U37gQOAcEz2Ag2lIOcufcT0R5kb2ljtvxWlQbtxs8jD/ebovhiF966y U5Q/NFibQLP6D7m4vRr77wlLOmXlnZNOLnTKYtV4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mike Snitzer , Sasha Levin Subject: [PATCH 4.19 067/287] dm: return early from dm_pr_call() if DM device is suspended Date: Tue, 23 Aug 2022 10:23:56 +0200 Message-Id: <20220823080102.485958853@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220823080100.268827165@linuxfoundation.org> References: <20220823080100.268827165@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 d2ee97cd7d14..324d1dd58e2b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3122,6 +3122,11 @@ 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