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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13E5DC4320A for ; Wed, 18 Aug 2021 14:49:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8007610E5 for ; Wed, 18 Aug 2021 14:49:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238896AbhHROth (ORCPT ); Wed, 18 Aug 2021 10:49:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238483AbhHROte (ORCPT ); Wed, 18 Aug 2021 10:49:34 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50495C061764 for ; Wed, 18 Aug 2021 07:48:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=dd55p9fRZ62wbbImD+QX9EdhgJeWc+nuOzXi0JKVyCA=; b=l1zryiyRtXQPptsS1l9A+4Sqtn nHMccNf1gP8hz7L/4grDR/MKMkhM/kfGq3BqJW54rM70ipoVvrBe3opca6BApu/FT3wWRoxOBXlOb uBZtCXZnWVj2yirVmWcQ7rUDDfZxHETVddp4bPqtoIEMjW1fLk1FR2rLP1EZjzQ3vHCC7bDaGy208 xC9jf6QqxiMtY1FWckUOpsakdguw927pb42aCqS61quTjS+bLD7DpuMQTcxRMiIHOBU4k2VwtUfCh NKobUpcO6yKRFprCPkT7LEdHRlNyKXVwiqPMcPWtEB6JJjcbsIvdS6XsPIZGMUqTXHITQURa/4ojd 2kbEIpRQ==; Received: from [2001:4bb8:188:1b1:5a9e:9f39:5a86:b20c] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mGMq4-003wVQ-5w; Wed, 18 Aug 2021 14:46:58 +0000 From: Christoph Hellwig To: Jens Axboe Cc: "Michael S. Tsirkin" , Jason Wang , "Martin K. Petersen" , Luis Chamberlain , linux-block@vger.kernel.org Subject: [PATCH 01/11] block: add a sanity check for a live disk in del_gendisk Date: Wed, 18 Aug 2021 16:45:32 +0200 Message-Id: <20210818144542.19305-2-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210818144542.19305-1-hch@lst.de> References: <20210818144542.19305-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Add a sanity check to del_gendisk to do nothing when the disk wasn't successfully added. This papers over the complete lack of add_disk error handling, which is about to get fixed gradually. Signed-off-by: Christoph Hellwig --- block/genhd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/genhd.c b/block/genhd.c index 02cd9ec93e52..935f74c652f1 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -579,7 +579,7 @@ void del_gendisk(struct gendisk *disk) { might_sleep(); - if (WARN_ON_ONCE(!disk->queue)) + if (WARN_ON_ONCE(!disk_live(disk))) return; blk_integrity_del(disk); -- 2.30.2