From patchwork Mon Oct 18 10:11:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12565901 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC916C433EF for ; Mon, 18 Oct 2021 10:14:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 98DAD60F22 for ; Mon, 18 Oct 2021 10:14:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232318AbhJRKQK (ORCPT ); Mon, 18 Oct 2021 06:16:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231523AbhJRKPD (ORCPT ); Mon, 18 Oct 2021 06:15:03 -0400 Received: from bombadil.infradead.org (unknown [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACD6DC06176F; Mon, 18 Oct 2021 03:12:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=8OnUiqFNA3rHNzLjA1n31wEQQeZqPf+auxUoglxcYro=; b=UHRswqexFwV0oo2rSODzspiz3i UVE7wBcsI5sgz3Ao8yhe3ZoPdIGxp3nRU3jEZIG0KWvPlJhtO9QQr9r0X2sH94zyZowQnIj+qPGz3 Ya5gaKWX5L/NDy/oTtejm/u7ipvwELGvfMxfGYF3Cy9j3QuOWX7Y+4hzKh14yW0hz5sKn/tyl1fXz 2YNr1fi527GYkPPYC+lK+3Iu6rdY4D5psAiTkmSo1xxvckIMgYzjFLNYSKQ5+mB3Nm/A60TI2HwUT tMIVIbc42oEgel1czPS5tVkdUELWfuuCoRmn7qWzUjsKne0Gpd8hHexhvPbdEgRZWIK6NVJgaZ5U8 E884db0Q==; Received: from [2001:4bb8:199:73c5:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mcPdI-00Eusw-8N; Mon, 18 Oct 2021 10:12:40 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Coly Li , Mike Snitzer , Song Liu , David Sterba , Josef Bacik , "Theodore Ts'o" , OGAWA Hirofumi , Dave Kleikamp , Ryusuke Konishi , Anton Altaparmakov , Konstantin Komarov , Kees Cook , Phillip Lougher , Jan Kara , linux-block@vger.kernel.org, dm-devel@redhat.com, drbd-dev@lists.linbit.com, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, reiserfs-devel@vger.kernel.org, Chaitanya Kulkarni Subject: [PATCH 25/30] block: add a sb_bdev_nr_blocks helper Date: Mon, 18 Oct 2021 12:11:25 +0200 Message-Id: <20211018101130.1838532-26-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211018101130.1838532-1-hch@lst.de> References: <20211018101130.1838532-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Add a helper to return the size of sb->s_bdev in sb->s_blocksize_bits based unites. Signed-off-by: Christoph Hellwig Reviewed-by: Kees Cook Reviewed-by: Chaitanya Kulkarni --- include/linux/genhd.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/genhd.h b/include/linux/genhd.h index b560aee1d69f0..7a48d3ac725f3 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -250,6 +250,12 @@ static inline sector_t get_capacity(struct gendisk *disk) return bdev_nr_sectors(disk->part0); } +static inline u64 sb_bdev_nr_blocks(struct super_block *sb) +{ + return bdev_nr_sectors(sb->s_bdev) >> + (sb->s_blocksize_bits - SECTOR_SHIFT); +} + int bdev_disk_changed(struct gendisk *disk, bool invalidate); void blk_drop_partitions(struct gendisk *disk);