From: Tejun Heo <tj@kernel.org>
Date: Tue, 13 Dec 2011 23:33:37 +0000 (+0100)
Subject: block, cfq: move cfqd->cic_index to q->id
X-Git-Tag: v3.3-rc1~49^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a73f730d013ff2788389fd0c46ad3e5510f124e6;p=pandora-kernel.git

block, cfq: move cfqd->cic_index to q->id

cfq allocates per-queue id using ida and uses it to index cic radix
tree from io_context.  Move it to q->id and allocate on queue init and
free on queue release.  This simplifies cfq a bit and will allow for
further improvements of io context life-cycle management.

This patch doesn't introduce any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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