From: Yishai Hadas <yishaih@mellanox.com>
Date: Thu, 10 May 2012 20:28:05 +0000 (+0300)
Subject: IB/core: Fix mismatch between locked and pinned pages
X-Git-Tag: v3.2.19~92
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d704f9240928c3ca88ea166c5175a9c66ea48564;p=pandora-kernel.git

IB/core: Fix mismatch between locked and pinned pages

commit c4870eb874ac16dccef40e1bc7a002c7e9156adc upstream.

Commit bc3e53f682d9 ("mm: distinguish between mlocked and pinned
pages") introduced a separate counter for pinned pages and used it in
the IB stack.  However, in ib_umem_get() the pinned counter is
incremented, but ib_umem_release() wrongly decrements the locked
counter.  Fix this.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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