From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 17 Jun 2011 21:18:39 +0000 (-0700)
Subject: isci: preallocate requests
X-Git-Tag: v3.0-rc6~1^2~1^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db0562509800a2d4cb5cb14a66413c30484f165c;p=pandora-kernel.git

isci: preallocate requests

the dma_pool interface is optimized for object_size << page_size which
is not the case with isci_request objects and the dma_pool routines show
up in the top of the profile.

The old io_request_table which tracked whether tci slots were in-flight
or not is replaced with an IREQ_ACTIVE flag per request.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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