From: Ming Lei <ming.lei@redhat.com>
To: Daniel Wagner <wagi@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>, Keith Busch <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Thomas Gleixner <tglx@linutronix.de>,
Costa Shulyupin <costa.shul@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Valentin Schneider <vschneid@redhat.com>,
Waiman Long <llong@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Mel Gorman <mgorman@suse.de>, Hannes Reinecke <hare@suse.de>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
linux-nvme@lists.infradead.org, megaraidlinux.pdl@broadcom.com,
linux-scsi@vger.kernel.org, storagedev@microchip.com,
virtualization@lists.linux.dev,
GR-QLogic-Storage-Upstream@marvell.com
Subject: Re: [PATCH v6 0/9] blk: honor isolcpus configuration
Date: Tue, 6 May 2025 11:17:58 +0800 [thread overview]
Message-ID: <aBl_Zn7aHbUTmPSE@fedora> (raw)
In-Reply-To: <20250424-isolcpus-io-queues-v6-0-9a53a870ca1f@kernel.org>
On Thu, Apr 24, 2025 at 08:19:39PM +0200, Daniel Wagner wrote:
> I've added back the isolcpus io_queue agrument. This avoids any semantic
> changes of managed_irq.
IMO, this is correct thing to do.
> I don't like it but I haven't found a
> better way to deal with it. Ming clearly stated managed_irq should not
> change.
Precisely, we can't cause io hang and break existing managed_irq applications,
especially you know there isn't kernel solution for it, same for v5, v6 or
whatever.
I will look at v6 this week.
Thanks,
Ming
prev parent reply other threads:[~2025-05-06 3:18 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-24 18:19 [PATCH v6 0/9] blk: honor isolcpus configuration Daniel Wagner
2025-04-24 18:19 ` [PATCH v6 1/9] lib/group_cpus: let group_cpu_evenly return number initialized masks Daniel Wagner
2025-04-28 12:37 ` Thomas Gleixner
2025-05-09 1:29 ` Ming Lei
2025-04-24 18:19 ` [PATCH v6 2/9] blk-mq: add number of queue calc helper Daniel Wagner
2025-05-09 1:43 ` Ming Lei
2025-04-24 18:19 ` [PATCH v6 3/9] nvme-pci: use block layer helpers to calculate num of queues Daniel Wagner
2025-05-09 1:47 ` Ming Lei
2025-05-14 16:12 ` Daniel Wagner
2025-04-24 18:19 ` [PATCH v6 4/9] scsi: " Daniel Wagner
2025-05-09 1:49 ` Ming Lei
2025-04-24 18:19 ` [PATCH v6 5/9] virtio: blk/scsi: " Daniel Wagner
2025-05-09 1:52 ` Ming Lei
2025-04-24 18:19 ` [PATCH v6 6/9] isolation: introduce io_queue isolcpus type Daniel Wagner
2025-04-25 6:26 ` Hannes Reinecke
2025-04-25 7:32 ` Daniel Wagner
2025-05-09 2:04 ` Ming Lei
2025-05-14 16:08 ` Daniel Wagner
2025-04-24 18:19 ` [PATCH v6 7/9] lib/group_cpus: honor housekeeping config when grouping CPUs Daniel Wagner
2025-05-09 2:22 ` Ming Lei
[not found] ` <cd1576ee-82a3-4899-b218-2e5c5334af6e@redhat.com>
2025-05-14 17:49 ` Daniel Wagner
2025-04-24 18:19 ` [PATCH v6 8/9] blk-mq: use hk cpus only when isolcpus=io_queue is enabled Daniel Wagner
2025-05-09 2:38 ` Ming Lei
2025-05-15 8:36 ` Daniel Wagner
2025-04-24 18:19 ` [PATCH v6 9/9] blk-mq: prevent offlining hk CPU with associated online isolated CPUs Daniel Wagner
2025-04-25 6:28 ` Hannes Reinecke
2025-05-09 2:54 ` Ming Lei
2025-05-06 3:17 ` Ming Lei [this message]
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