ovl_dentry_init_flags
void ovl_dentry_init_flags(struct dentry *dentry, struct dentry *upperdentry,
ovl_dentry_init_flags(root, upperdentry, oe, DCACHE_OP_WEAK_REVALIDATE);
return ovl_dentry_init_flags(dentry, upperdentry, oe, OVL_D_REVALIDATE);