From 4cb3e1db21a94781bbf05238687c3e8a715ab2f9 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 1 Oct 2013 18:35:39 -0400
Subject: [PATCH] dm cache: return -EINVAL if the user specifies unknown cache
 policy

Return -EINVAL when the specified cache policy is unknown rather than
returning -ENOMEM.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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