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=-16.7 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=unavailable 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 3485AC8301E for ; Sat, 28 Nov 2020 22:12:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E765B22250 for ; Sat, 28 Nov 2020 22:12:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="l9I7x+zf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730628AbgK1VuD (ORCPT ); Sat, 28 Nov 2020 16:50:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731094AbgK1Sry (ORCPT ); Sat, 28 Nov 2020 13:47:54 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4912FC025488; Sat, 28 Nov 2020 08:16:02 -0800 (PST) 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=FsZkmK6a2hs6E6Z9B6tfmRfHQ191hKagU9+KV6WFNtM=; b=l9I7x+zfyYy3M2QfALdSBmMsHC /hZdHYin491tNVgPie7TBuJZzFyo091g3Z3RoFGD6dlAE+OUKJOtb7eRUIU4RB/bNzQl4e4qsssKH Ao1PN+wyfDizhgsZX2jn2PgmKF9CeOZGNuJziuLNr2ZLA/VbsOzHk4Cduo3Xe0xf/bEgEzGdZDClJ Ww+iO61t7F+pb2DRHDUPgaNeC9ZnPNxxmBB0rcLkfM8WGXapvAc4DpS34CnYnE+qOSSsQ3wMCWVaq gjRsfGbqT1SOQKUSbjLatxILGDXHnAsZgc+oh4AoexldboXuOdV5X8KWrVeCTXA5s77Y1BrobRQf6 FDKVcGXA==; Received: from [2001:4bb8:18c:1dd6:48f3:741a:602e:7fdd] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2t4-0000Jl-6t; Sat, 28 Nov 2020 16:15:50 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Tejun Heo , Josef Bacik , Coly Li , Mike Snitzer , Greg Kroah-Hartman , Jan Kara , Johannes Thumshirn , dm-devel@redhat.com, Jan Kara , linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 23/45] block: opencode devcgroup_inode_permission Date: Sat, 28 Nov 2020 17:14:48 +0100 Message-Id: <20201128161510.347752-24-hch@lst.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201128161510.347752-1-hch@lst.de> References: <20201128161510.347752-1-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 Just call devcgroup_check_permission to avoid various superflous checks and a double conversion of the access flags. Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Reviewed-by: Jan Kara --- fs/block_dev.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index a2d5050c97ee08..2b8c0586314fe2 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1520,15 +1520,13 @@ static int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder) struct block_device *claiming; bool unblock_events = true; struct gendisk *disk; - int perm = 0; int partno; int ret; - if (mode & FMODE_READ) - perm |= MAY_READ; - if (mode & FMODE_WRITE) - perm |= MAY_WRITE; - ret = devcgroup_inode_permission(bdev->bd_inode, perm); + ret = devcgroup_check_permission(DEVCG_DEV_BLOCK, + imajor(bdev->bd_inode), iminor(bdev->bd_inode), + ((mode & FMODE_READ) ? DEVCG_ACC_READ : 0) | + ((mode & FMODE_WRITE) ? DEVCG_ACC_WRITE : 0)); if (ret) goto bdput; -- 2.29.2 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,DKIMWL_WL_HIGH, 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 38886C63697 for ; Sat, 28 Nov 2020 16:20:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D43082467C for ; Sat, 28 Nov 2020 16:20:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="N08omRi2"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="l9I7x+zf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D43082467C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xHEDroCPCM9W3rjU5QL3w4JH8kxZ0ML/8V7pGfgPyaw=; b=N08omRi2S7MhAnVIbVMjUHkv5 cu1CG42R1pt9OfY/PoFa05HjsOt6uV01MILZJyYsLjYPU2k1CNN/NgJ3vj1uXiEHJJwK2OnAyqM6Q 1YHgKCb1HuNggXcpUtzaRO61WmHz/ViENhQOjE1UxXNSwZwybzhrmZa6K+VFQjrc8SNEUTTQqe/z7 bArovUOGViBviG+F7nFsS4qtMD3x7oSx39N73A713AJ6uH6Op8Lzt1dCjfY1g8SuO52+BBh6b8JZN 5XBCFuE/HCRKWxyti/yX1AreWq4I+XbzOGitDVXxLACr5OaI7gTEud1yV+aQ9Xt/YGhz+hDdDHvxI hbuN4rluA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2x3-0002wF-Ob; Sat, 28 Nov 2020 16:19:57 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2t5-0000sa-Mq for linux-mtd@merlin.infradead.org; Sat, 28 Nov 2020 16:15:51 +0000 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=FsZkmK6a2hs6E6Z9B6tfmRfHQ191hKagU9+KV6WFNtM=; b=l9I7x+zfyYy3M2QfALdSBmMsHC /hZdHYin491tNVgPie7TBuJZzFyo091g3Z3RoFGD6dlAE+OUKJOtb7eRUIU4RB/bNzQl4e4qsssKH Ao1PN+wyfDizhgsZX2jn2PgmKF9CeOZGNuJziuLNr2ZLA/VbsOzHk4Cduo3Xe0xf/bEgEzGdZDClJ Ww+iO61t7F+pb2DRHDUPgaNeC9ZnPNxxmBB0rcLkfM8WGXapvAc4DpS34CnYnE+qOSSsQ3wMCWVaq gjRsfGbqT1SOQKUSbjLatxILGDXHnAsZgc+oh4AoexldboXuOdV5X8KWrVeCTXA5s77Y1BrobRQf6 FDKVcGXA==; Received: from [2001:4bb8:18c:1dd6:48f3:741a:602e:7fdd] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2t4-0000Jl-6t; Sat, 28 Nov 2020 16:15:50 +0000 From: Christoph Hellwig To: Jens Axboe Subject: [PATCH 23/45] block: opencode devcgroup_inode_permission Date: Sat, 28 Nov 2020 17:14:48 +0100 Message-Id: <20201128161510.347752-24-hch@lst.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201128161510.347752-1-hch@lst.de> References: <20201128161510.347752-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-bcache@vger.kernel.org, Jan Kara , Mike Snitzer , linux-mm@kvack.org, Greg Kroah-Hartman , Jan Kara , Josef Bacik , Coly Li , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, Johannes Thumshirn , Tejun Heo Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Just call devcgroup_check_permission to avoid various superflous checks and a double conversion of the access flags. Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Reviewed-by: Jan Kara --- fs/block_dev.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index a2d5050c97ee08..2b8c0586314fe2 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1520,15 +1520,13 @@ static int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder) struct block_device *claiming; bool unblock_events = true; struct gendisk *disk; - int perm = 0; int partno; int ret; - if (mode & FMODE_READ) - perm |= MAY_READ; - if (mode & FMODE_WRITE) - perm |= MAY_WRITE; - ret = devcgroup_inode_permission(bdev->bd_inode, perm); + ret = devcgroup_check_permission(DEVCG_DEV_BLOCK, + imajor(bdev->bd_inode), iminor(bdev->bd_inode), + ((mode & FMODE_READ) ? DEVCG_ACC_READ : 0) | + ((mode & FMODE_WRITE) ? DEVCG_ACC_WRITE : 0)); if (ret) goto bdput; -- 2.29.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 A5A12C63697 for ; Sat, 28 Nov 2020 16:24:20 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 33C43246C3 for ; Sat, 28 Nov 2020 16:24:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 33C43246C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-188-zFLJCy0uN5eO2BshQe7gmw-1; Sat, 28 Nov 2020 11:24:16 -0500 X-MC-Unique: zFLJCy0uN5eO2BshQe7gmw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 16C418030BA; Sat, 28 Nov 2020 16:24:12 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id EFB675D71D; Sat, 28 Nov 2020 16:24:11 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id C8F9B1809CA4; Sat, 28 Nov 2020 16:24:11 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 0ASGMwds023590 for ; Sat, 28 Nov 2020 11:22:58 -0500 Received: by smtp.corp.redhat.com (Postfix) id 309522027EAD; Sat, 28 Nov 2020 16:22:58 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast01.extmail.prod.ext.rdu2.redhat.com [10.11.55.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 294A82027EB5 for ; Sat, 28 Nov 2020 16:22:55 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A1939858EEC for ; Sat, 28 Nov 2020 16:22:55 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-415-BKxBOqImMnu6pi0aBGWMIA-1; Sat, 28 Nov 2020 11:22:53 -0500 X-MC-Unique: BKxBOqImMnu6pi0aBGWMIA-1 Received: from [2001:4bb8:18c:1dd6:48f3:741a:602e:7fdd] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2t4-0000Jl-6t; Sat, 28 Nov 2020 16:15:50 +0000 From: Christoph Hellwig To: Jens Axboe Date: Sat, 28 Nov 2020 17:14:48 +0100 Message-Id: <20201128161510.347752-24-hch@lst.de> In-Reply-To: <20201128161510.347752-1-hch@lst.de> References: <20201128161510.347752-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-loop: dm-devel@redhat.com Cc: linux-bcache@vger.kernel.org, Jan Kara , Mike Snitzer , linux-mm@kvack.org, Greg Kroah-Hartman , Jan Kara , Josef Bacik , Coly Li , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, Johannes Thumshirn , Tejun Heo Subject: [dm-devel] [PATCH 23/45] block: opencode devcgroup_inode_permission X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Just call devcgroup_check_permission to avoid various superflous checks and a double conversion of the access flags. Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Reviewed-by: Jan Kara --- fs/block_dev.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index a2d5050c97ee08..2b8c0586314fe2 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1520,15 +1520,13 @@ static int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder) struct block_device *claiming; bool unblock_events = true; struct gendisk *disk; - int perm = 0; int partno; int ret; - if (mode & FMODE_READ) - perm |= MAY_READ; - if (mode & FMODE_WRITE) - perm |= MAY_WRITE; - ret = devcgroup_inode_permission(bdev->bd_inode, perm); + ret = devcgroup_check_permission(DEVCG_DEV_BLOCK, + imajor(bdev->bd_inode), iminor(bdev->bd_inode), + ((mode & FMODE_READ) ? DEVCG_ACC_READ : 0) | + ((mode & FMODE_WRITE) ? DEVCG_ACC_WRITE : 0)); if (ret) goto bdput; -- 2.29.2 -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel