LU-6856 zfs: handle non existing file in osd_object_ref_del

[fs/lustre-release.git] / lustre / osd-zfs / osd_object.c

diff --git a/lustre/osd-zfs/osd_object.c b/lustre/osd-zfs/osd_object.c
index 5c2d1f5..d59aa91 100644 (file)
--- a/lustre/osd-zfs/osd_object.c
+++ b/lustre/osd-zfs/osd_object.c
@@ -660,7 +660,7 @@ static void osd_object_read_lock(const struct lu_env *env,
 
        LASSERT(osd_invariant(obj));
 
-       down_read(&obj->oo_sem);
+       down_read_nested(&obj->oo_sem, role);
 }
 
 static void osd_object_write_lock(const struct lu_env *env,
@@ -670,7 +670,7 @@ static void osd_object_write_lock(const struct lu_env *env,
 
        LASSERT(osd_invariant(obj));
 
-       down_write(&obj->oo_sem);
+       down_write_nested(&obj->oo_sem, role);
 }
 
 static void osd_object_read_unlock(const struct lu_env *env,
@@ -1525,8 +1525,10 @@ static int osd_object_ref_add(const struct lu_env *env,
 
        ENTRY;
 
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
+
        LASSERT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt));
        LASSERT(obj->oo_sa_hdl != NULL);
 
        oh = container_of0(handle, struct osd_thandle, ot_super);
@@ -1573,7 +1575,7 @@ static int osd_object_ref_del(const struct lu_env *env,
        write_unlock(&obj->oo_attr_lock);
 
        rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
-       return rc;
+       RETURN(rc);
 }
 
 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,