From: Christoph Hellwig <hch@lst.de>
Date: Wed, 16 Apr 2014 07:44:52 +0000 (+0200)
Subject: blk-mq: allow drivers to hook into I/O completion
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~47^2~63
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63151a449ebaef062ffac5b302206565ff5ef62e;p=pandora-kernel.git

blk-mq: allow drivers to hook into I/O completion

Split out the bottom half of blk_mq_end_io so that drivers can perform
work when they know a request has been completed, but before it has been
freed.  This also obsoletes blk_mq_end_io_partial as drivers can now
pass any value to blk_update_request directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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