X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fldlm%2Fldlm_lockd.c;h=18221a727acbef3fbaf07e3c0207141882dc3b8d;hp=fe9668b09d775c5fcfd2863cf013879314a410f7;hb=1f7613968c800f99ed074f17cd7ba1086847d2db;hpb=336cf0f2f3a9ce5b11a34aeaeec062a5d5144213

diff --git a/lustre/ldlm/ldlm_lockd.c b/lustre/ldlm/ldlm_lockd.c
index fe9668b..18221a7 100644
--- a/lustre/ldlm/ldlm_lockd.c
+++ b/lustre/ldlm/ldlm_lockd.c
@@ -3376,10 +3376,10 @@ void ldlm_exit(void)
 	kmem_cache_destroy(ldlm_resource_slab);
 	/*
 	 * ldlm_lock_put() use RCU to call ldlm_lock_free, so need call
-	 * synchronize_rcu() to wait a grace period elapsed, so that
-	 * ldlm_lock_free() get a chance to be called.
+	 * rcu_barrier() to wait all outstanding RCU callbacks to complete,
+	 * so that ldlm_lock_free() get a chance to be called.
 	 */
-	synchronize_rcu();
+	rcu_barrier();
 	kmem_cache_destroy(ldlm_lock_slab);
 	kmem_cache_destroy(ldlm_interval_slab);
 	kmem_cache_destroy(ldlm_interval_tree_slab);