-/* -*- MODE: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * mdd/mdd_handler.c
- * Lustre Metadata Server (mdd) routines
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (C) 2006 Cluster File Systems, Inc.
- * Author: Wang Di <wangdi@clusterfs.com>
+ * 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 file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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 may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * In either case, Lustre 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
- * license text for more details.
+ * GPL HEADER END
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mdd/mdd_trans.c
+ *
+ * Lustre Metadata Server (mdd) routines
+ *
+ * Author: Wang Di <wangdi@clusterfs.com>
+ */
+
#define DEBUG_SUBSYSTEM S_MDS
-#include <linux/module.h>
-#include <linux/jbd.h>
-#include <obd.h>
#include <obd_class.h>
-#include <lustre_ver.h>
-#include <obd_support.h>
#include <lprocfs_status.h>
-
-#include <linux/ldiskfs_fs.h>
#include <lustre_mds.h>
-#include <lustre/lustre_idl.h>
#include "mdd_internal.h"
-static int dto_txn_credits[DTO_NR];
-
-int mdd_txn_start_cb(const struct lu_env *env, struct txn_param *param,
- void *cookie)
-{
- struct mdd_device *mdd = cookie;
- struct obd_device *obd = mdd2obd_dev(mdd);
- /* Each transaction updates lov objids, the credits should be added for
- * this */
- int blk, shift = mdd->mdd_dt_conf.ddp_block_shift;
- blk = ((obd->u.mds.mds_lov_desc.ld_tgt_count * sizeof(obd_id) +
- (1 << shift) - 1) >> shift) + 1;
-
- /* add lov objids credits */
- param->tp_credits += blk * dto_txn_credits[DTO_WRITE_BLOCK] +
- dto_txn_credits[DTO_WRITE_BASE];
-
- return 0;
-}
-
int mdd_txn_stop_cb(const struct lu_env *env, struct thandle *txn,
void *cookie)
{
return mds_lov_write_objids(obd);
}
-int mdd_txn_commit_cb(const struct lu_env *env, struct thandle *txn,
- void *cookie)
-{
- return 0;
-}
-
-void mdd_txn_param_build(const struct lu_env *env, struct mdd_device *mdd,
- enum mdd_txn_op op)
-{
- LASSERT(0 <= op && op < MDD_TXN_LAST_OP);
-
- txn_param_init(&mdd_env_info(env)->mti_param,
- mdd->mdd_tod[op].mod_credits);
-}
-
-int mdd_log_txn_param_build(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma, enum mdd_txn_op op)
-{
- struct mdd_device *mdd = mdo2mdd(&md2mdd_obj(obj)->mod_obj);
- int rc, log_credits, stripe;
- ENTRY;
-
- mdd_txn_param_build(env, mdd, op);
-
- if (S_ISDIR(lu_object_attr(&obj->mo_lu)))
- RETURN(0);
-
- LASSERT(op == MDD_TXN_UNLINK_OP || op == MDD_TXN_RENAME_OP);
- rc = mdd_lmm_get_locked(env, md2mdd_obj(obj), ma);
- if (rc || !(ma->ma_valid & MA_LOV))
- RETURN(rc);
-
- LASSERT(le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC);
- if ((int)le32_to_cpu(ma->ma_lmm->lmm_stripe_count) < 0)
- stripe = mdd2obd_dev(mdd)->u.mds.mds_lov_desc.ld_tgt_count;
- else
- stripe = le32_to_cpu(ma->ma_lmm->lmm_stripe_count);
-
- log_credits = stripe * dto_txn_credits[DTO_LOG_REC];
- mdd_env_info(env)->mti_param.tp_credits += log_credits;
- RETURN(rc);
-}
-
-static void mdd_txn_init_dto_credits(const struct lu_env *env,
- struct mdd_device *mdd, int *dto_credits)
+struct thandle *mdd_trans_create(const struct lu_env *env,
+ struct mdd_device *mdd)
{
- int op, credits;
- for (op = 0; op < DTO_NR; op++) {
- credits = mdd_child_ops(mdd)->dt_credit_get(env, mdd->mdd_child,
- op);
- LASSERT(credits > 0);
- dto_txn_credits[op] = credits;
- }
-}
-
-int mdd_txn_init_credits(const struct lu_env *env, struct mdd_device *mdd)
-{
- int op;
-
- /* Init credits for each ops. */
- mdd_txn_init_dto_credits(env, mdd, dto_txn_credits);
-
- /* Calculate the mdd credits. */
- for (op = MDD_TXN_OBJECT_DESTROY_OP; op < MDD_TXN_LAST_OP; op++) {
- int *c = &mdd->mdd_tod[op].mod_credits;
- int *dt = dto_txn_credits;
- mdd->mdd_tod[op].mod_op = op;
- switch(op) {
- case MDD_TXN_OBJECT_DESTROY_OP:
- *c = dt[DTO_OBJECT_DELETE];
- break;
- case MDD_TXN_OBJECT_CREATE_OP:
- /* OI_INSERT + CREATE OBJECT */
- *c = dt[DTO_INDEX_INSERT] +
- dt[DTO_OBJECT_CREATE];
- break;
- case MDD_TXN_ATTR_SET_OP:
- /* ATTR set + XATTR(lsm, lmv) set */
- *c = dt[DTO_ATTR_SET] + dt[DTO_XATTR_SET];
- break;
- case MDD_TXN_XATTR_SET_OP:
- *c = dt[DTO_XATTR_SET];
- break;
- case MDD_TXN_INDEX_INSERT_OP:
- *c = dt[DTO_INDEX_INSERT];
- break;
- case MDD_TXN_INDEX_DELETE_OP:
- *c = dt[DTO_INDEX_DELETE];
- break;
- case MDD_TXN_LINK_OP:
- *c = dt[DTO_INDEX_INSERT];
- break;
- case MDD_TXN_UNLINK_OP:
- /* delete index + Unlink log */
- *c = dt[DTO_INDEX_DELETE];
- break;
- case MDD_TXN_RENAME_OP:
- /* 2 delete index + 1 insert + Unlink log */
- *c = 2 * dt[DTO_INDEX_DELETE] +
- dt[DTO_INDEX_INSERT];
- break;
- case MDD_TXN_RENAME_TGT_OP:
- /* index insert + index delete */
- *c = dt[DTO_INDEX_DELETE] +
- dt[DTO_INDEX_INSERT];
- break;
- case MDD_TXN_CREATE_DATA_OP:
- /* same as set xattr(lsm) */
- *c = dt[DTO_XATTR_SET];
- break;
- case MDD_TXN_MKDIR_OP:
- /* INDEX INSERT + OI INSERT +
- * CREATE_OBJECT_CREDITS
- * SET_MD CREDITS is already counted in
- * CREATE_OBJECT CREDITS
- */
- *c = 2 * dt[DTO_INDEX_INSERT] +
- dt[DTO_OBJECT_CREATE];
- break;
- default:
- CERROR("Invalid op %d init its credit\n", op);
- LBUG();
- }
- }
- RETURN(0);
+ return mdd_child_ops(mdd)->dt_trans_create(env, mdd->mdd_child);
}
-struct thandle* mdd_trans_start(const struct lu_env *env,
- struct mdd_device *mdd)
+int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd,
+ struct thandle *th)
{
- struct txn_param *p = &mdd_env_info(env)->mti_param;
- struct thandle *th;
-
- th = mdd_child_ops(mdd)->dt_trans_start(env, mdd->mdd_child, p);
- return th;
+ return mdd_child_ops(mdd)->dt_trans_start(env, mdd->mdd_child, th);
}
void mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff