From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 25 Sep 2014 15:23:38 +0000 (+0800)
Subject: blk-mq: handle failure path for initializing hctx
X-Git-Tag: fixes-against-v3.18-rc2~51^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08e98fc6016c890c2f4ffba6decc0ca9d2d5d7f8;p=pandora-kernel.git

blk-mq: handle failure path for initializing hctx

Failure of initializing one hctx isn't handled, so this patch
introduces blk_mq_init_hctx() and its pair to handle it explicitly.
Also this patch makes code cleaner.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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