From: Keith Busch <keith.busch@intel.com>
To: Hannes Reinecke <hare@suse.com>
Cc: John Garry <john.garry@huawei.com>,
Hannes Reinecke <hare@suse.de>,
Thomas Gleixner <tglx@linutronix.de>,
Christoph Hellwig <hch@lst.de>,
Marc Zyngier <marc.zyngier@arm.com>,
"axboe@kernel.dk" <axboe@kernel.dk>,
Peter Zijlstra <peterz@infradead.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Linuxarm <linuxarm@huawei.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Subject: Re: Question on handling managed IRQs when hotplugging CPUs
Date: Tue, 5 Feb 2019 08:16:36 -0700 [thread overview]
Message-ID: <20190205151632.GA28064@localhost.localdomain> (raw)
In-Reply-To: <0de6dae8-1234-3e3f-d8f3-2d8de47b7f9e@suse.com>
On Tue, Feb 05, 2019 at 04:10:47PM +0100, Hannes Reinecke wrote:
> On 2/5/19 3:52 PM, Keith Busch wrote:
> > Whichever layer dispatched the IO to a CPU specific context should
> > be the one to wait for its completion. That should be blk-mq for most
> > block drivers.
> >
> Indeed.
> But we don't provide any mechanisms for that ATM, right?
>
> Maybe this would be a topic fit for LSF/MM?
Right, there's nothing handling this now, and sounds like it'd be a good
discussion to bring to the storage track.
prev parent reply other threads:[~2019-02-05 15:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-29 11:25 Question on handling managed IRQs when hotplugging CPUs John Garry
2019-01-29 11:54 ` Hannes Reinecke
2019-01-29 12:01 ` Thomas Gleixner
2019-01-29 15:27 ` John Garry
2019-01-29 16:27 ` Thomas Gleixner
2019-01-29 17:23 ` John Garry
2019-01-29 15:44 ` Keith Busch
2019-01-29 17:12 ` John Garry
2019-01-29 17:20 ` Keith Busch
2019-01-30 10:38 ` John Garry
2019-01-30 12:43 ` Thomas Gleixner
2019-01-31 17:48 ` John Garry
2019-02-01 15:56 ` Hannes Reinecke
2019-02-01 21:57 ` Thomas Gleixner
2019-02-04 7:12 ` Hannes Reinecke
2019-02-05 13:24 ` John Garry
2019-02-05 14:52 ` Keith Busch
2019-02-05 15:09 ` John Garry
2019-02-05 15:11 ` Keith Busch
2019-02-05 15:15 ` Hannes Reinecke
2019-02-05 15:27 ` John Garry
2019-02-05 18:23 ` Christoph Hellwig
2019-02-06 9:21 ` John Garry
2019-02-06 13:34 ` Benjamin Block
2019-02-05 15:10 ` Hannes Reinecke
2019-02-05 15:16 ` Keith Busch [this message]
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