linux-kernel - Re: [PATCH 4/7] genirq/affinity: rename irq_build_affinity_masks as group_cpus

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Message-ID: <YRzG7mMFI+n/QJyG@T590>
Date:   Wed, 18 Aug 2021 16:38:06 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Thomas Gleixner <tglx@...utronix.de>, Jens Axboe <axboe@...nel.dk>,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: [PATCH 4/7] genirq/affinity: rename irq_build_affinity_masks as
 group_cpus_evenly

On Tue, Aug 17, 2021 at 06:50:27AM +0200, Christoph Hellwig wrote:
> s/as/to/ in the subjects.
> 
> On Sat, Aug 14, 2021 at 08:35:29PM +0800, Ming Lei wrote:
> > Map irq vector into group, so we can abstract the algorithm for generic
> > use case.
> 
> s/vector/vectors/

One group actually is abstracted from one irq vector, and it can represent
vector, blk-mq hw queue and others. Currently genirq/affinity spreads
vectors across all possible cpus, since this patch we spread groups
among all possible cpus evenly.

Thanks,
Ming