diff --git a/[refs] b/[refs]
index ca2547d81297..0ece4f72e3f3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 10baa26c8ccba6f100397c9ba6534be175762e8d
+refs/heads/master: 34318c253b861f82bd4a2956e6c8ae8ee2c3aae7
diff --git a/trunk/arch/powerpc/platforms/cell/spufs/sched.c b/trunk/arch/powerpc/platforms/cell/spufs/sched.c
index 6253df5a436e..2ad914c47493 100644
--- a/trunk/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/trunk/arch/powerpc/platforms/cell/spufs/sched.c
@@ -444,6 +444,11 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
 		atomic_dec(&cbe_spu_info[spu->node].reserved_spus);
 
 	if (ctx->gang)
+		/*
+		 * If ctx->gang->aff_sched_count is positive, SPU affinity is
+		 * being considered in this gang. Using atomic_dec_if_positive
+		 * allow us to skip an explicit check for affinity in this gang
+		 */
 		atomic_dec_if_positive(&ctx->gang->aff_sched_count);
 
 	spu_switch_notify(spu, NULL);