--- spl-0.6.3/module/spl/spl-kmem.c~	2015-01-26 00:23:23.000000000 +0100
+++ spl-0.6.3/module/spl/spl-kmem.c	2015-01-26 00:24:13.312560884 +0100
@@ -2369,7 +2369,11 @@
 
 	spl_slab_reclaim(skc, count, 1);
 	clear_bit(KMC_BIT_REAPING, &skc->skc_flags);
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) )
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__after_atomic();
+#endif
 	wake_up_bit(&skc->skc_flags, KMC_BIT_REAPING);
 out:
 	atomic_dec(&skc->skc_ref);