Re: [PATCH v10 09/10] fs/resctrl: Introduce interface to modify io_alloc capacity bitmasks

From: Reinette Chatre
Date: Fri Oct 24 2025 - 19:44:22 EST


Hi Babu,

On 10/21/25 4:54 PM, Babu Moger wrote:
> The io_alloc feature in resctrl enables system software to configure the
> portion of the cache allocated for I/O traffic. When supported, the
> io_alloc_cbm file in resctrl provides access to capacity bitmasks (CBMs)
> allocated for I/O devices.
>
> Enable users to modify io_alloc CBMs by writing to the io_alloc_cbm resctrl
> file when the io_alloc feature is enabled.
>
> Mirror the CBMs between CDP_CODE and CDP_DATA when CDP is enabled to present
> consistent I/O allocation information to user space.
>
> Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
> ---

Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>

Reinette