On Wed, 6 Aug 2014, Boaz Harrosh wrote:
> From: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
>
> 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 <ross.zwisler@xxxxxxxxxxxxxxx>
> Signed-off-by: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
> ---
> 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 <linux/radix-tree.h>
> #include <linux/fs.h>
> #include <linux/slab.h>
> +#include <linux/hdreg.h>
>
> #include <asm/uaccess.h>
>
> @@ -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
This looks good.
- Ross
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