[PATCH v4 1/3] x86,fs/resctrl: Add resctrl_arch_preconvert_bw()

Reinette Chatre reinette.chatre at intel.com
Mon Jul 6 14:33:22 PDT 2026


Hi Ben,

On 7/6/26 9:06 AM, Ben Horgan wrote:
> On MPAM systems the rounding behaviour of the MBA control would be improved
> if the rounding in the fs/resctrl code is removed but this is not the
> case for x86. To allow any rounding or conversion of the bandwidth value
> provided by the user to be specified by the arch code a new arch hook is
> required.
> 
> Introduce resctrl_arch_preconvert_bw(), and add its x86 implementation.
> This is currently unused in resctrl but when plumbed in it will replace the
> call to roundup() in bw_validate().
> 
> Signed-off-by: Dave Martin <dave.martin at arm.com>
> Signed-off-by: Ben Horgan <ben.horgan at arm.com>

This chain does not look right. The first SOB is expected to be from the
author but the patch does not have Dave as author. 

> Reviewed-by: Reinette Chatre <reinette.chatre at intel.com>
> ---

Reinette




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