LU-12616 obclass: fix MDS start/stop race

[fs/lustre-release.git] / lustre / mdd / mdd_device.c

diff --git a/lustre/mdd/mdd_device.c b/lustre/mdd/mdd_device.c
index c6caae2..1a9a8e6 100644 (file)
--- a/lustre/mdd/mdd_device.c
+++ b/lustre/mdd/mdd_device.c
@@ -839,9 +839,21 @@ static int mdd_dummy_unlink(const struct lu_env *env,
        return -EPERM;
 }
 
+int mdd_create(const struct lu_env *env, struct md_object *pobj,
+                     const struct lu_name *lname, struct md_object *child,
+                     struct md_op_spec *spec, struct md_attr *ma);
+static int mdd_obf_create(const struct lu_env *env, struct md_object *pobj,
+                     const struct lu_name *lname, struct md_object *child,
+                     struct md_op_spec *spec, struct md_attr *ma)
+{
+       if (spec->sp_cr_flags & MDS_OPEN_VOLATILE)
+               return mdd_create(env, pobj, lname, child, spec, ma);
+       RETURN(-EPERM);
+}
+
 static struct md_dir_operations mdd_obf_dir_ops = {
        .mdo_lookup = obf_lookup,
-       .mdo_create = mdd_dummy_create,
+       .mdo_create = mdd_obf_create,
        .mdo_rename = mdd_dummy_rename,
        .mdo_link   = mdd_dummy_link,
        .mdo_unlink = mdd_dummy_unlink
@@ -1331,7 +1343,7 @@ static int mdd_statfs(const struct lu_env *env, struct md_device *m,
 
        ENTRY;
 
-       rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs);
+       rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs, NULL);
 
        sfs->os_namelen = min_t(__u32, sfs->os_namelen, NAME_MAX);