mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Reinette Chatre <reinette.chatre@intel.com>
To: Yury Norov <yury.norov@gmail.com>, James Morse <james.morse@arm.com>
Cc: Tony Luck <tony.luck@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"Rasmus Villemoes" <linux@rasmusvillemoes.dk>, <x86@kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/4] cpumask: add missing API and simplify cpumask_any_housekeeping()
Date: Thu, 1 May 2025 15:06:18 -0700	[thread overview]
Message-ID: <2e033056-c2a0-4a91-8b4b-c5e53bdfb171@intel.com> (raw)
In-Reply-To: <20250427185242.221974-1-yury.norov@gmail.com>

Hi Yury,

On 4/27/25 11:52 AM, Yury Norov wrote:
> From: Yury Norov [NVIDIA] <yury.norov@gmail.com>
> 
> cpumask library missed some flavors of cpumask_any_but(), which makes
> users to workaround it by using less efficient cpumask_nth() functions
> 
> This series adds missing cpumask_any_andnot_but() and makes
> cpumask_any_but() understanding the RESCTRL_PICK_ANY_CPU hint.
> This simplifies cpumask_any_housekeeping() significantly.
> 
> v1: https://lore.kernel.org/all/20250407153856.133093-1-yury.norov@gmail.com/
> v2:
>  - switch cpumask_any_but() functions to signed type for CPU (Reinette);
>  - change name for the new function to cpumask_any_andnot_but() (James);
>  - drop O(n*log(n)) comment. cpumask_nth() is slower, but still linear.
> 
> Yury Norov [NVIDIA] (4):
>   cpumask: relax cpumask_any_but()
>   find: add find_first_andnot_bit()
>   cpumask: add cpumask_{first,next}_andnot() API
>   x86/resctrl: optimize cpumask_any_housekeeping()

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

Does anything in your "bitmap-for-next" branch depend on this
series? If not, would you be ok if this series goes upstream
via tip (pending confirmation from tip maintainers) to make
for smoother upstream of resctrl patches that touch the same area?

Thank you very much for doing this work. 

Reinette



  parent reply	other threads:[~2025-05-01 22:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-27 18:52 Yury Norov
2025-04-27 18:52 ` [PATCH v2 1/4] cpumask: relax cpumask_any_but() Yury Norov
2025-04-27 18:52 ` [PATCH v2 2/4] find: add find_first_andnot_bit() Yury Norov
2025-04-27 18:52 ` [PATCH v2 3/4] cpumask: add cpumask_{first,next}_andnot() API Yury Norov
2025-04-27 18:52 ` [PATCH v2 4/4] x86/resctrl: Optimize cpumask_any_housekeeping() Yury Norov
2025-05-01 22:06 ` Reinette Chatre [this message]
2025-05-02 15:32   ` [PATCH v2 0/4] cpumask: add missing API and simplify cpumask_any_housekeeping() Yury Norov
2025-05-02 16:17     ` Reinette Chatre

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2e033056-c2a0-4a91-8b4b-c5e53bdfb171@intel.com \
    --to=reinette.chatre@intel.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=hpa@zytor.com \
    --cc=james.morse@arm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@rasmusvillemoes.dk \
    --cc=mingo@redhat.com \
    --cc=tglx@linutronix.de \
    --cc=tony.luck@intel.com \
    --cc=x86@kernel.org \
    --cc=yury.norov@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®