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From: Christoph Hellwig <hch@lst.de>
To: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, linux-ide@vger.kernel.org
Subject: Re: command emulation fix
Date: Thu, 19 Jan 2017 21:41:35 +0100	[thread overview]
Message-ID: <20170119204135.GA6675@lst.de> (raw)
In-Reply-To: <20170119203646.GD25390@mtj.duckdns.org>

On Thu, Jan 19, 2017 at 03:36:46PM -0500, Tejun Heo wrote:
> But do you actually expect there to be scalability issues around this
> buffer?  Its uses are extremely short and libata operations are pretty
> strongly synchronized to begin with.

Mostly for setups using JBODs with massive numbers of SATA disks.

This would mostly not be ahci or a real ATA driver but libsas calling
into libata for the translation.

  reply	other threads:[~2017-01-19 20:42 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-14 16:50 command emulation fix Christoph Hellwig
2017-01-14 16:50 ` [PATCH] libata: switch allocations for command emulation to GFP_ATOMIC Christoph Hellwig
2017-01-15 23:07 ` command emulation fix Tejun Heo
2017-01-16 15:21   ` Christoph Hellwig
2017-01-18 19:17     ` Tejun Heo
2017-01-19 14:35       ` Christoph Hellwig
2017-01-19 20:23         ` Tejun Heo
2017-01-19 20:27           ` Christoph Hellwig
2017-01-19 20:34             ` Tejun Heo
2017-01-19 20:36               ` Tejun Heo
2017-01-19 20:41                 ` Christoph Hellwig [this message]
2017-01-19 20:45                   ` Tejun Heo
2017-01-19 20:40               ` Christoph Hellwig

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