From: Jens Axboe <axboe@fb.com>
Date: Tue, 16 Sep 2014 19:38:51 +0000 (-0600)
Subject: genhd: fix leftover might_sleep() in blk_free_devt()
X-Git-Tag: v3.2.64~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=607530bf21828c96c2880282c844088baf6ae3c4;p=pandora-kernel.git

genhd: fix leftover might_sleep() in blk_free_devt()

commit 46f341ffcfb5d8530f7d1e60f3be06cce6661b62 upstream.

Commit 2da78092 changed the locking from a mutex to a spinlock,
so we now longer sleep in this context. But there was a leftover
might_sleep() in there, which now triggers since we do the final
free from an RCU callback. Get rid of it.

Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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