From: Jeff Garzik <jgarzik@pobox.com>
To: Mark Lord <liml@rtr.ca>
Cc: Tejun Heo <htejun@gmail.com>, Alan Cox <alan@redhat.com>,
IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: Correct use of ap->lock versus ap->host->lock ?
Date: Thu, 06 Mar 2008 13:24:31 -0500 [thread overview]
Message-ID: <47D036DF.1050200@pobox.com> (raw)
In-Reply-To: <47D035D6.1060604@rtr.ca>
Mark Lord wrote:
> The big difference here, is that a single SATA controller in a system
> can have up to eight quasi-independent ports. So when we lock, we block
> activity on all 8 interfaces, rather than just the one we care about.
...hence the mention of multi-port NICs.
Jeff
next prev parent reply other threads:[~2008-03-06 18:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-06 15:48 Correct use of ap->lock versus ap->host->lock ? Mark Lord
2008-03-06 16:35 ` Jeff Garzik
2008-03-06 17:13 ` Mark Lord
2008-03-06 17:24 ` Mark Lord
2008-03-06 17:41 ` Jeff Garzik
2008-03-06 18:12 ` Jeff Garzik
2008-03-06 23:04 ` Tejun Heo
2008-03-06 17:28 ` Jeff Garzik
2008-03-06 17:36 ` Mark Lord
2008-03-06 17:57 ` Jeff Garzik
2008-03-06 18:20 ` Mark Lord
2008-03-06 18:24 ` Jeff Garzik [this message]
2008-03-07 11:47 ` Andi Kleen
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