From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 02/30] block: add a bdev_nr_bytes helper Date: Mon, 18 Oct 2021 12:11:02 +0200 Message-ID: <20211018101130.1838532-3-hch@lst.de> References: <20211018101130.1838532-1-hch@lst.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: 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=xjTWeSayf3PGdeuuH3Uv1mvdxKcTliIdGd38f16e0vY=; b=KMWyFjUUP4rTm1jU72NoSazyjw NukgJKTB3XLeVN5/NaHZeMw1abHoo6KJQXk2WQvU/LsTslU9QVmfYML22zcD3OIFxgbvqOWiXdnaR OpY1s7tltedd/mn56643zLiVtvcycJPwOmHKOR3RPDXVr8PVpqxRhuugiqdEMDLPy7Gw62jdy8gjA FCOsAmyXMJVwe63VVc61EYBxID5DtFF4IstC57V/rHMPXBAphyH570DHr1Ob6pxFi144uTQUosdjx mAcl43jh0ueJZ2x4rqHyyAr2lalnUkUd9hsorIFLNvRC3ubFHhIW5VBzOdWy2PLwjmzFlpw5QEA+l 4CL6wc2A==; In-Reply-To: <20211018101130.1838532-1-hch@lst.de> List-ID: Content-Type: text/plain; charset="us-ascii" 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.or Add a helper to query the size of a block device in bytes. This will be used to remove open coded access to ->bd_inode. Signed-off-by: Christoph Hellwig Reviewed-by: Kees Cook --- include/linux/genhd.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 082a3e5fd8fa1..b560aee1d69f0 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -235,9 +235,14 @@ static inline sector_t get_start_sect(struct block_device *bdev) return bdev->bd_start_sect; } +static inline loff_t bdev_nr_bytes(struct block_device *bdev) +{ + return i_size_read(bdev->bd_inode); +} + static inline sector_t bdev_nr_sectors(struct block_device *bdev) { - return i_size_read(bdev->bd_inode) >> 9; + return bdev_nr_bytes(bdev) >> SECTOR_SHIFT; } static inline sector_t get_capacity(struct gendisk *disk) -- 2.30.2