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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 4EED9C388F7 for ; Sat, 31 Oct 2020 09:07:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00B8420756 for ; Sat, 31 Oct 2020 09:07:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="seI3CiJ3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726518AbgJaJHF (ORCPT ); Sat, 31 Oct 2020 05:07:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726424AbgJaJHE (ORCPT ); Sat, 31 Oct 2020 05:07:04 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D97DC0613D5; Sat, 31 Oct 2020 02:07:04 -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=i7wqZZpXCL5ORZNGUa3zoAoYso4IoJJ/DeaKvkfVUtI=; b=seI3CiJ37CFqQ0MPjj1WJETe3w OkdVzkFn+IC3T9UEq72RyY3T3xEeriFWZnBtWJv7grnje4N8Qtml6DBrgoMSlCTd8RXVAqDI7nelq nExmfzLlOV/zbB4Rj/UqrxG+rz/+YT9brzJfV+Z+7HBDZlwCzMJ+eJBKni1syWyMSUo/ZjcicBIM5 OlPKDA5yWhcdJ7DF+HyMdr+E4R4ZAH230RSzfOfjnMlJMXu0mN6cm3LxL6tHXNR6OOHgkbrDHyUyn rXV+KfjBMm19K6Neb1knHRFJXCsue6NB6EyoO8iq4nqVUyOre0tyFcwfuDIMyzr9lI51Py9d9v0Xs tb8M+HBA==; Received: from 089144193201.atnat0002.highway.a1.net ([89.144.193.201] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kYmqf-0007GT-57; Sat, 31 Oct 2020 09:06:57 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Ilya Dryomov , Song Liu , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Stefan Haberland , Jan Hoeppner , linux-block@vger.kernel.org, ceph-devel@vger.kernel.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org Subject: [PATCH 03/11] block: don't call into the driver for BLKFLSBUF Date: Sat, 31 Oct 2020 09:58:02 +0100 Message-Id: <20201031085810.450489-4-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201031085810.450489-1-hch@lst.de> References: <20201031085810.450489-1-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: ceph-devel@vger.kernel.org BLKFLSBUF is entirely contained in the block core, and there is no good reason to give the driver a hook into processing it. Signed-off-by: Christoph Hellwig --- block/ioctl.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/block/ioctl.c b/block/ioctl.c index 3fbc382eb926d4..c6d8863f040945 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -369,15 +369,8 @@ static inline int is_unrecognized_ioctl(int ret) static int blkdev_flushbuf(struct block_device *bdev, fmode_t mode, unsigned cmd, unsigned long arg) { - int ret; - if (!capable(CAP_SYS_ADMIN)) return -EACCES; - - ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg); - if (!is_unrecognized_ioctl(ret)) - return ret; - fsync_bdev(bdev); invalidate_bdev(bdev); return 0; -- 2.28.0