LU-6881 update: add lock to protect commit check

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

diff --git a/lustre/target/update_trans.c b/lustre/target/update_trans.c
index 998481e..82e67fc 100644 (file)
--- a/lustre/target/update_trans.c
+++ b/lustre/target/update_trans.c
@@ -468,6 +468,7 @@ static void sub_trans_commit_cb(struct lu_env *env,
        ENTRY;
 
        /* Check if all sub thandles are committed */
+       spin_lock(&tmt->tmt_sub_lock);
        list_for_each_entry(st, &tmt->tmt_sub_thandle_list, st_sub_list) {
                if (st->st_sub_th == sub_th) {
                        st->st_committed = 1;
@@ -476,6 +477,7 @@ static void sub_trans_commit_cb(struct lu_env *env,
                if (!st->st_committed)
                        all_committed = false;
        }
+       spin_unlock(&tmt->tmt_sub_lock);
 
        if (tmt->tmt_result == 0)
                tmt->tmt_result = err;
@@ -1075,8 +1077,9 @@ int top_trans_create_tmt(const struct lu_env *env,
        INIT_LIST_HEAD(&tmt->tmt_sub_thandle_list);
        INIT_LIST_HEAD(&tmt->tmt_commit_list);
        atomic_set(&tmt->tmt_refcount, 1);
-
+       spin_lock_init(&tmt->tmt_sub_lock);
        init_waitqueue_head(&tmt->tmt_stop_waitq);
+
        top_th->tt_multiple_thandle = tmt;
 
        return 0;