OVL_HAS_DIGEST
ovl_clear_flag(OVL_HAS_DIGEST, d_inode(c->dentry));
ovl_set_flag(OVL_HAS_DIGEST, inode);
ovl_clear_flag(OVL_HAS_DIGEST, inode);
ovl_set_flag(OVL_HAS_DIGEST, d_inode(c->dentry));
ovl_clear_flag(OVL_HAS_DIGEST, d_inode(c->dentry));
ovl_set_flag(OVL_HAS_DIGEST, ctx->inode);
if (!ovl_test_flag(OVL_HAS_DIGEST, inode)) {