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 EC1EEC77B73 for ; Mon, 8 May 2023 11:48:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236365AbjEHLsE (ORCPT ); Mon, 8 May 2023 07:48:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236294AbjEHLrw (ORCPT ); Mon, 8 May 2023 07:47:52 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79EA03760B for ; Mon, 8 May 2023 04:47:44 -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 EF9E3639DC for ; Mon, 8 May 2023 11:47:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E39AEC433D2; Mon, 8 May 2023 11:47:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683546463; bh=xEDL5QGhqAPJX9oVIadDdEGtKEqLD4JQGalUfqJj1Ws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cBbDMQmKlBG5czGcKNtDQa9GJRDqRRaf3BvmUFzprPQUNSnNySUcvaA2Cbt4STOFH dLATaQWGQG+aC/fTIcU1Do/REEwv52mRylOvC/IkIVsFQiCBgkGKZYCrlvb0uNaxb0 RV0W9OKV2ZQHK2gw7usk87cAi97MnvuP36519XTI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stefan Haberland , Jan Hoeppner , Halil Pasic , Jens Axboe Subject: [PATCH 5.15 359/371] s390/dasd: fix hanging blockdevice after request requeue Date: Mon, 8 May 2023 11:49:20 +0200 Message-Id: <20230508094826.355307062@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094811.912279944@linuxfoundation.org> References: <20230508094811.912279944@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: stable@vger.kernel.org From: Stefan Haberland commit d8898ee50edecacdf0141f26fd90acf43d7e9cd7 upstream. The DASD driver does not kick the requeue list when requeuing IO requests to the blocklayer. This might lead to hanging blockdevice when there is no other trigger for this. Fix by automatically kick the requeue list when requeuing DASD requests to the blocklayer. Fixes: e443343e509a ("s390/dasd: blk-mq conversion") CC: stable@vger.kernel.org # 4.14+ Signed-off-by: Stefan Haberland Reviewed-by: Jan Hoeppner Reviewed-by: Halil Pasic Link: https://lore.kernel.org/r/20230405142017.2446986-8-sth@linux.ibm.com Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- drivers/s390/block/dasd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2963,7 +2963,7 @@ static int _dasd_requeue_request(struct return 0; spin_lock_irq(&cqr->dq->lock); req = (struct request *) cqr->callback_data; - blk_mq_requeue_request(req, false); + blk_mq_requeue_request(req, true); spin_unlock_irq(&cqr->dq->lock); return 0;