From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 763E9168D1 for ; Mon, 8 May 2023 11:27:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1F5DC433D2; Mon, 8 May 2023 11:27:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683545257; bh=CL1HLDwUN1mkeYzB5XCFDH+3dVdjRatD5TFejnbijEY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nKjmY5xIfsnPHE3fLZnJ504I0oKzjt3xu2ZaLyZDVs4sG7B7WE7IqKzoMlzYcjmKx rck1vtOwAZUAZY1bgBmst6RHdJCxy/VHDmHHpvEKvEgaGtFUFuGwQjgAM9lI9c9PSf VZ+rZ2lez04zdX132ZeX+CKDQCEEz4/YYWLzLMEA= 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 6.3 674/694] s390/dasd: fix hanging blockdevice after request requeue Date: Mon, 8 May 2023 11:48:29 +0200 Message-Id: <20230508094458.057087857@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094432.603705160@linuxfoundation.org> References: <20230508094432.603705160@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 @@ -2941,7 +2941,7 @@ 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;