LU-2859 osc: unplug IO queue async to avoid stack overflow

[fs/lustre-release.git] / lustre / osc / osc_cache.c

diff --git a/lustre/osc/osc_cache.c b/lustre/osc/osc_cache.c
index 37b249f..581beb6 100644 (file)
--- a/lustre/osc/osc_cache.c
+++ b/lustre/osc/osc_cache.c
@@ -1533,12 +1533,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli,
                ocw.ocw_rc = 0;
                client_obd_list_unlock(&cli->cl_loi_list_lock);
 
-               /* First osc_io_unplug() tries to put current object
-                * on ready list, second osc_io_unplug() makes sure that
-                * dirty flush can still be triggered even if current
-                * object hasn't any dirty pages */
-               osc_io_unplug(env, cli, osc, PDL_POLICY_ROUND);
-               osc_io_unplug(env, cli, NULL, PDL_POLICY_ROUND);
+               osc_io_unplug_async(env, cli, NULL);
 
                CDEBUG(D_CACHE, "%s: sleeping for cache space @ %p for %p\n",
                       cli->cl_import->imp_obd->obd_name, &ocw, oap);