From: Tejun Heo <tj@kernel.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jeff Garzik <jeff@garzik.org>,
t.artem@mailcity.com,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: ahci: CAP_SSS and parallel scan
Date: Thu, 06 May 2010 10:22:33 +0200 [thread overview]
Message-ID: <4BE27C49.5090809@kernel.org> (raw)
Hello,
Artem reported on bko#15918 that on his machine ahci probing takes too
long (well, if you ask me, that's not too long but anyways). This is
caused by CAP_SSS disabling parallel scan. The code was added by
Arjan in commit 886ad09fc83342aa1c5a02a0b6d3298b78a8067f. There is a
module parameter to skip this but I'm curious whether the change was
based on an actual problem as on most PC hardware by the time ahci
driver kick in, the BIOS has spun up everything already.
Thanks.
--
tejun
next reply other threads:[~2010-05-06 8:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-06 8:22 Tejun Heo [this message]
2010-05-06 9:30 ` ahci: CAP_SSS and parallel scan Arjan van de Ven
2010-05-06 14:44 ` Tejun Heo
2010-05-06 19:49 ` Jeff Garzik
2010-05-07 5:14 ` Tejun Heo
2010-05-07 21:33 ` Jeff Garzik
2010-05-08 8:40 ` Tejun Heo
2010-05-08 21:53 ` Jeff Garzik
2010-05-06 20:19 ` Mark Lord
2010-05-07 5:16 ` Tejun Heo
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