From patchwork Wed Oct 13 05:10:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 1540227 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=hWAnatX+; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=H0UVWNgw; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HThfW2W52z9sNH for ; Wed, 13 Oct 2021 16:58:27 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bKvkIuf7YpM1yfA3/C0Xz2D07Fsbc5p9LeDV0Z9kVoI=; b=hWAnatX+5g02nL gtE1+btwiGWNyGWG/qqXz5S5r5tsDEYa9dqKmbUpm9k3dwz5GbEYpCwmrtoWS2Vv0Y6YdXMB1Xfpx oEtidfY37VnARRDttyfUfbBkkoyCJL6lq6iQO57w1r1BMzzB3XsckW6BF4QjmbxcBvtMAUlNttF+J BSnt+Tf8E7z/tBCqs3HeZGUgAsJswplcJ88RUVQB6cJiIumO1bKthhKLdZGTirp8cC17WGRMbF3R4 YPNrou467ZnnTiW944p2t998D1x3/D+fD/KRMlA50xT9DyIuzQUJiXB21LfFOdUSHCzRSDI7386r6 fcpZCQS/AxZdRwRCLx2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maXGv-00F3M2-R2; Wed, 13 Oct 2021 05:57:50 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maWzm-00Ezl1-E0; Wed, 13 Oct 2021 05:40:06 +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=vUXTd2YdXfDrfy4pbV8SMX7GiwQcZZ3XnEJ9sBFT+FY=; b=H0UVWNgwlojCDOZ0ZDJEHbcabH /9k0Jdc+YLFDHne+zfEyDy0jv5BMEE4tSHTVSjq9pY+zz3oa4oUqe8AXLPv3nLRy41ZvHo0BFuSsA MaY/EKHh1Bp7Uf1udgCZNNBxreNpTwvrd/EqmRLDQBn6IJi8YRJFbqQmFZeteuySU1Cfmu1NFiTgQ 2LgWePcSz6O2+8NDUH5I2rp85amag5Y71YZ+7TLQm1/Q0On+c4vchAxkdL8ToRCxOv8PtjjyJ+kWZ +hJqPyUbz5GIMW3ia1Y04II/0+/C9L7zroftL5CNXO1fs8k/zQt2HAH6gz3BjvISqqA/tFFfZj+Q+ u0lN1M/Q==; Received: from 089144212063.atnat0021.highway.a1.net ([89.144.212.63] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1maWyt-00789s-54; Wed, 13 Oct 2021 05:39:26 +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-mtd@lists.infradead.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 Subject: [PATCH 24/29] block: add a sb_bdev_nr_blocks helper Date: Wed, 13 Oct 2021 07:10:37 +0200 Message-Id: <20211013051042.1065752-25-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211013051042.1065752-1-hch@lst.de> References: <20211013051042.1065752-1-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: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Add a helper to return the size of sb->s_bdev in sb->s_blocksize_bits based unites. Note that SECTOR_SHIFT has to be open coded due to include dependency issues for now, but I have a plan to sort that out eventually. Signed-off-by: Christoph Hellwig --- include/linux/genhd.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 082a3e5fd8fa1..6eaef8fa78bcd 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -245,6 +245,12 @@ 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 - 9 /* SECTOR_SHIFT */); +} + int bdev_disk_changed(struct gendisk *disk, bool invalidate); void blk_drop_partitions(struct gendisk *disk);