X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmdd%2Fmdd_trans.c;h=2004bfc53a86f28c89f21a5a8fa618f5b8c4ed8b;hb=refs%2Fchanges%2F78%2F32378%2F10;hp=46a8b9bc7e21b2b7f48d7b9c0ba9d96da99eb485;hpb=0f8dca08a4f68cba82c2c822998ecc309d3b7aaf;p=fs%2Flustre-release.git diff --git a/lustre/mdd/mdd_trans.c b/lustre/mdd/mdd_trans.c index 46a8b9b..2004bfc 100644 --- a/lustre/mdd/mdd_trans.c +++ b/lustre/mdd/mdd_trans.c @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -17,17 +15,15 @@ * * 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 - * - * 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. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2011, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -40,237 +36,51 @@ * Author: Wang Di */ -#ifndef EXPORT_SYMTAB -# define EXPORT_SYMTAB -#endif #define DEBUG_SUBSYSTEM S_MDS -#include -#ifdef HAVE_EXT4_LDISKFS -#include -#else -#include -#endif -#include #include -#include -#include #include - -#ifdef HAVE_EXT4_LDISKFS -#include -#else -#include -#endif #include -#include +#include #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) -{ - struct mdd_device *mdd = cookie; - struct obd_device *obd = mdd2obd_dev(mdd); - - LASSERT(obd); - 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 thandle *mdd_trans_create(const struct lu_env *env, + struct mdd_device *mdd) { - 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); + struct thandle *th; + struct lu_ucred *uc = lu_ucred_check(env); - 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); + /* If blocked by the write barrier, then return "-EINPROGRESS" + * to the caller. Usually, such error will be forwarded to the + * client, and the expected behaviour is to re-try such modify + * RPC some time later until the barrier is thawed or expired. */ + if (unlikely(!barrier_entry(mdd->mdd_bottom))) + return ERR_PTR(-EINPROGRESS); - LASSERTF(le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1 || - le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3, - "%08x", le32_to_cpu(ma->ma_lmm->lmm_magic)); + th = mdd_child_ops(mdd)->dt_trans_create(env, mdd->mdd_child); + if (!IS_ERR(th) && uc) + th->th_ignore_quota = !!md_capable(uc, CFS_CAP_SYS_RESOURCE); - 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]; - txn_param_credit_add(&mdd_env_info(env)->mti_param, log_credits); - RETURN(rc); + return th; } -int mdd_setattr_txn_param_build(const struct lu_env *env, struct md_object *obj, - struct md_attr *ma, enum mdd_txn_op op) +int mdd_trans_start(const struct lu_env *env, struct mdd_device *mdd, + struct thandle *th) { - struct mdd_device *mdd = mdo2mdd(&md2mdd_obj(obj)->mod_obj); - ENTRY; - - mdd_txn_param_build(env, mdd, op); - if (ma->ma_attr.la_valid & (LA_UID | LA_GID)) - txn_param_credit_add(&mdd_env_info(env)->mti_param, - dto_txn_credits[DTO_ATTR_SET_CHOWN]); - - /* permission changes may require sync operation */ - if (ma->ma_attr.la_valid & (LA_MODE|LA_UID|LA_GID) && - mdd->mdd_sync_permission == 1) - txn_param_sync(&mdd_env_info(env)->mti_param); - - RETURN(0); + return mdd_child_ops(mdd)->dt_trans_start(env, mdd->mdd_child, th); } -static void mdd_txn_init_dto_credits(const struct lu_env *env, - struct mdd_device *mdd, int *dto_credits) +int mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd, + int result, struct thandle *handle) { - 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 rc; -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); + handle->th_result = result; + rc = mdd_child_ops(mdd)->dt_trans_stop(env, mdd->mdd_child, handle); + barrier_exit(mdd->mdd_bottom); - /* 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: - /* Unused now */ - *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_BASE] + - 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 + - * mdd orphan handling */ - *c = dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_INSERT] * 2 + - dt[DTO_XATTR_SET] * 3; - break; - case MDD_TXN_RENAME_OP: - /* 2 delete index + 1 insert + Unlink log */ - *c = 2 * dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_INSERT] + - dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_INSERT] * 2 + - dt[DTO_XATTR_SET] * 3; - break; - case MDD_TXN_RENAME_TGT_OP: - /* index insert + index delete */ - *c = dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_INSERT] + - dt[DTO_INDEX_DELETE] + - dt[DTO_INDEX_INSERT] * 2 + - dt[DTO_XATTR_SET] * 3; - 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); -} - -struct thandle* mdd_trans_start(const struct lu_env *env, - struct mdd_device *mdd) -{ - 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; -} - -void mdd_trans_stop(const struct lu_env *env, struct mdd_device *mdd, - int result, struct thandle *handle) -{ - handle->th_result = result; - mdd_child_ops(mdd)->dt_trans_stop(env, handle); + /* if operation failed, return \a result, otherwise return status of + * dt_trans_stop */ + return result ?: rc; }