From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boaz Harrosh Subject: [PATCH 2/4] brd: Add getgeo to block ops Date: Wed, 06 Aug 2014 14:30:33 +0300 Message-ID: <53E211D9.7030102@plexistor.com> References: <53E21125.9080308@plexistor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-fsdevel To: Jens Axboe , Ross Zwisler , Matthew Wilcox , linux-kernel Return-path: In-Reply-To: <53E21125.9080308@plexistor.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org From: Ross Zwisler Some programs require HDIO_GETGEO work, which requires we implement getgeo. Based off of the work done to the NVMe driver in this commit: 4cc09e2dc4cb NVMe: Add getgeo to block ops [Boaz] Converted original work done for prd.c for here. This is needed if we want to support partitions, fdisk calls this. Signed-off-by: Ross Zwisler Signed-off-by: Boaz Harrosh --- drivers/block/brd.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index a10a0a9..3f07cb4 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -19,6 +19,7 @@ #include #include #include +#include #include @@ -424,6 +425,15 @@ static int brd_ioctl(struct block_device *bdev, fmode_t mode, return error; } +static int brd_getgeo(struct block_device *bd, struct hd_geometry *geo) +{ + /* some standard values */ + geo->heads = 1 << 6; + geo->sectors = 1 << 5; + geo->cylinders = get_capacity(bd->bd_disk) >> 11; + return 0; +} + static const struct block_device_operations brd_fops = { .owner = THIS_MODULE, .rw_page = brd_rw_page, @@ -431,6 +441,7 @@ static const struct block_device_operations brd_fops = { #ifdef CONFIG_BLK_DEV_XIP .direct_access = brd_direct_access, #endif + .getgeo = brd_getgeo, }; /* -- 1.9.3