LU-11301 target: add lock in sub_trans_stop_cb()

[fs/lustre-release.git] / lustre / target / update_trans.c

diff --git a/lustre/target/update_trans.c b/lustre/target/update_trans.c
index f9dc367..154da72 100644 (file)
--- a/lustre/target/update_trans.c
+++ b/lustre/target/update_trans.c
@@ -526,6 +526,7 @@ static void sub_trans_stop_cb(struct lu_env *env,
        struct top_multiple_thandle     *tmt = cb->dcb_data;
        ENTRY;
 
+       spin_lock(&tmt->tmt_sub_lock);
        list_for_each_entry(st, &tmt->tmt_sub_thandle_list, st_sub_list) {
                if (st->st_stopped)
                        continue;
@@ -536,6 +537,7 @@ static void sub_trans_stop_cb(struct lu_env *env,
                        break;
                }
        }
+       spin_unlock(&tmt->tmt_sub_lock);
 
        wake_up(&tmt->tmt_stop_waitq);
        RETURN_EXIT;