From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 25 May 2010 17:15:15 +0000 (-0400)
Subject: block: make blk_init_free_list and elevator_init idempotent
X-Git-Tag: v2.6.35-rc2~12^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1abec4fdbb142e3ccb6ce99832fae42129134a96;p=pandora-kernel.git

block: make blk_init_free_list and elevator_init idempotent

blk_init_allocated_queue_node may fail and the caller _could_ retry.
Accommodate the unlikely event that blk_init_allocated_queue_node is
called on an already initialized (possibly partially) request_queue.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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