From: Louis Rilling <louis.rilling@kerlabs.com>
Date: Fri, 4 Dec 2009 13:52:41 +0000 (+0100)
Subject: block: Fix io_context leak after clone with CLONE_IO
X-Git-Tag: v2.6.33-rc1~379^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=61cc74fbb87af6aa551a06a370590c9bc07e29d9;p=pandora-kernel.git

block: Fix io_context leak after clone with CLONE_IO

With CLONE_IO, copy_io() increments both ioc->refcount and ioc->nr_tasks.
However exit_io_context() only decrements ioc->refcount if ioc->nr_tasks
reaches 0.

Always call put_io_context() in exit_io_context().

Signed-off-by: Louis Rilling <louis.rilling@kerlabs.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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