From patchwork Tue Jul 4 12:56:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 13301192 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 740BAEB64DD for ; Tue, 4 Jul 2023 12:57:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231481AbjGDM5H (ORCPT ); Tue, 4 Jul 2023 08:57:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229441AbjGDM5F (ORCPT ); Tue, 4 Jul 2023 08:57:05 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5B2B12E; Tue, 4 Jul 2023 05:57:04 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 843E920571; Tue, 4 Jul 2023 12:57:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1688475423; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LtayAV5T0tBVByT6zZ44nOPb8V5tXSVkxuDIXL3faJ0=; b=Duy5fugiJmqDcIDpwsbYTPiA4IruxmPPijcS0WaD9OElGUyAEUmlma53ORRQLV40JgzbzK UaFkS5V/S3hLlFh6GKsjqW/xqLk0pSE3Ngr+aBl+MmkIaomBJNnQi7QPRD3GBmNJtPUThl bhejAQlSvLbpYVGjYbQIHYRolrXxxK8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1688475423; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LtayAV5T0tBVByT6zZ44nOPb8V5tXSVkxuDIXL3faJ0=; b=pLKG5TNw/8Mra2nNSLGkoVJeHKs8nIKwgmkwbOHYCLdmNz89+ls+Siibr1V38bbFZE12gh o+qF3lu/O5Lrv6Dw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 6F4F31346D; Tue, 4 Jul 2023 12:57:03 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id xqk2Gx8XpGRAQwAAMHmgww (envelope-from ); Tue, 04 Jul 2023 12:57:03 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id EE456A0765; Tue, 4 Jul 2023 14:57:02 +0200 (CEST) From: Jan Kara To: Cc: , Christoph Hellwig , Christian Brauner , Jens Axboe , Kees Cook , Ted Tso , syzkaller , Alexander Popov , Eric Biggers , , linux-btrfs@vger.kernel.org, Dmitry Vyukov , Jan Kara Subject: [PATCH 3/6] xfs: Block writes to log device Date: Tue, 4 Jul 2023 14:56:51 +0200 Message-Id: <20230704125702.23180-3-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230704122727.17096-1-jack@suse.cz> References: <20230704122727.17096-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=792; i=jack@suse.cz; h=from:subject; bh=nhXkhndcPMW2C+uoE+VwcqIIQEbUdMbuuEt4QVO2k/Q=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBkpBcTQayx7dbOByhLrjumejN1JUQPoK85sd4AETva TsjocFOJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZKQXEwAKCRCcnaoHP2RA2VgoCA DQyETerLQPbUl9el+W2isQ3GPWuVGKOhq1DNPEDd2haY+G45LN9cI64qaXk8br1iB/LPwukLuPMv3Q V2ygL0uXAcCH8LzvnGBSHIQNrHqcpj6g+StWqdIrrxjY9Rs4nzXCMLLfyVv+59aVk6hzD0iiykK29c Y4AqrrZIzdXxaxLBGjyATLbJ80oPQu8ff5lhnSrMj58aCFWQX0uDYRBw8DgXOZldrSTvivy1wmtMSl BEBfwodl2YYmh8iEr9RmpbDK/vzd0ONTVOxTnRNNCsndncJ8Tqw9pBSJIL3O9vXOGVNNxba/cl78u+ RtG9pEBcwiK2qR//mTi4dz4ycxKt2s X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Ask block layer to not allow other writers to open block device used for xfs log. Signed-off-by: Jan Kara Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index b0fbf8ea7846..3808b4507552 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -396,8 +396,9 @@ xfs_blkdev_get( { int error = 0; - *handlep = blkdev_get_by_path(name, BLK_OPEN_READ | BLK_OPEN_WRITE, - mp, &xfs_holder_ops); + *handlep = blkdev_get_by_path(name, + BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_BLOCK_WRITES, + mp, &xfs_holder_ops); if (IS_ERR(*handlep)) { error = PTR_ERR(*handlep); xfs_warn(mp, "Invalid device [%s], error=%d", name, error);