linux-kernel - Re: [PATCH V2 06/10] x86/resctrl: Introduce utility to return pseudo-locked cache portion

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Message-ID: <20190805160723.GC18785@zn.tnic>
Date:   Mon, 5 Aug 2019 18:07:23 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Reinette Chatre <reinette.chatre@...el.com>
Cc:     tglx@...utronix.de, fenghua.yu@...el.com, tony.luck@...el.com,
        kuo-lang.tseng@...el.com, mingo@...hat.com, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 06/10] x86/resctrl: Introduce utility to return
 pseudo-locked cache portion

On Tue, Jul 30, 2019 at 10:29:40AM -0700, Reinette Chatre wrote:
> To prevent eviction of pseudo-locked memory it is required that no
> other resource group uses any portion of a cache that is in use by
> a cache pseudo-locked region.
> 
> Introduce a utility that will return a Capacity BitMask (CBM) indicating
> all portions of a provided cache instance being used for cache
> pseudo-locking. This CBM can be used in overlap checking as well as
> cache usage reporting.
> 
> Signed-off-by: Reinette Chatre <reinette.chatre@...el.com>
> ---
>  arch/x86/kernel/cpu/resctrl/internal.h    |  1 +
>  arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 23 +++++++++++++++++++++++
>  2 files changed, 24 insertions(+)

s/utility/utility function/g

so that there's no ambiguity...

Thx.

-- 
Regards/Gruss,
    Boris.

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