Re: [PATCH 5/5 v4] brd: Add getgeo to block ops for fdisk

From: Boaz Harrosh
Date: Wed Nov 05 2014 - 10:18:23 EST


On 11/05/2014 05:14 PM, Boaz Harrosh wrote:
> From: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
>
Sorry

[V4]
Also fix the cryptic comment at the source code.

I have pushed new trees to the public tree as well

Thanks
Boaz

<>
> +static int brd_getgeo(struct block_device *bd, struct hd_geometry *geo)
> +{
> + /* With the usual emulated values of 64, 32, X and the
> + * default size of 4M device, fdisk will offer 40 as possible
> + * first-sector.
> + * But with the values presented here of 1, 1, 1 fdisk will
> + * offer 8 (4K) as possible first sector.
> + * Otherwise, either way, it effects nothing. Only fdisk calls
> + * this vector at all.
> + */
> + geo->heads = 1;
> + geo->sectors = 1;
> + geo->cylinders = 1;
> + return 0;
> +}
> +
> static const struct block_device_operations brd_fops = {
> .owner = THIS_MODULE,
> .rw_page = brd_rw_page,
> @@ -433,6 +450,7 @@ static const struct block_device_operations brd_fops = {
> #ifdef CONFIG_BLK_DEV_XIP
> .direct_access = brd_direct_access,
> #endif
> + .getgeo = brd_getgeo,
> };
>
> /*
>

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