linux-kernel - Re: [PATCH v7 02/10] genirq/affinity: Add cpumask to struct irq

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Message-ID: <1ec7dfeb-b5d6-4aac-9567-db1ab7f9531d@suse.de>
Date: Thu, 3 Jul 2025 08:19:39 +0200
From: Hannes Reinecke <hare@...e.de>
To: Daniel Wagner <wagi@...nel.org>, Jens Axboe <axboe@...nel.dk>,
 Keith Busch <kbusch@...nel.org>, Christoph Hellwig <hch@....de>,
 Sagi Grimberg <sagi@...mberg.me>, "Michael S. Tsirkin" <mst@...hat.com>
Cc: Aaron Tomlin <atomlin@...mlin.com>,
 "Martin K. Petersen" <martin.petersen@...cle.com>,
 Thomas Gleixner <tglx@...utronix.de>, Costa Shulyupin
 <costa.shul@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
 Valentin Schneider <vschneid@...hat.com>, Waiman Long <llong@...hat.com>,
 Ming Lei <ming.lei@...hat.com>, Frederic Weisbecker <frederic@...nel.org>,
 Mel Gorman <mgorman@...e.de>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
 linux-nvme@...ts.infradead.org, megaraidlinux.pdl@...adcom.com,
 linux-scsi@...r.kernel.org, storagedev@...rochip.com,
 virtualization@...ts.linux.dev, GR-QLogic-Storage-Upstream@...vell.com
Subject: Re: [PATCH v7 02/10] genirq/affinity: Add cpumask to struct
 irq_affinity

On 7/2/25 18:33, Daniel Wagner wrote:
> Pass a cpumask to irq_create_affinity_masks as an additional constraint
> to consider when creating the affinity masks. This allows the caller to
> exclude specific CPUs, e.g., isolated CPUs (see the 'isolcpus' kernel
> command-line parameter).
> 
> Signed-off-by: Daniel Wagner <wagi@...nel.org>
> ---
>   include/linux/interrupt.h | 16 ++++++++++------
>   kernel/irq/affinity.c     | 12 ++++++++++--
>   2 files changed, 20 insertions(+), 8 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich