LU-14393 protocol: basic batching processing framework

[fs/lustre-release.git] / lustre / mdc / mdc_batch.c

diff --git a/lustre/mdc/mdc_batch.c b/lustre/mdc/mdc_batch.c
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+++ b/lustre/mdc/mdc_batch.c
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+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2020, 2022, DDN Storage Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ */
+/*
+ * lustre/mdc/mdc_batch.c
+ *
+ * Batch Metadata Updating on the client (MDC)
+ *
+ * Author: Qian Yingjin <qian@ddn.com>
+ */
+
+#define DEBUG_SUBSYSTEM S_MDC
+
+#include <linux/module.h>
+#include <lustre_update.h>
+#include <lustre_acl.h>
+
+#include "mdc_internal.h"
+
+
+static md_update_pack_t mdc_update_packers[MD_OP_MAX];
+
+static object_update_interpret_t mdc_update_interpreters[MD_OP_MAX];
+
+int mdc_batch_add(struct obd_export *exp, struct lu_batch *bh,
+                 struct md_op_item *item)
+{
+       enum md_item_opcode opc = item->mop_opc;
+
+       ENTRY;
+
+       if (opc >= MD_OP_MAX || mdc_update_packers[opc] == NULL ||
+           mdc_update_interpreters[opc] == NULL) {
+               CERROR("%s: unexpected opcode %d\n",
+                      exp->exp_obd->obd_name, opc);
+               RETURN(-EFAULT);
+       }
+
+       RETURN(cli_batch_add(exp, bh, item, mdc_update_packers[opc],
+                            mdc_update_interpreters[opc]));
+}