diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lmv/lmv_internal.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/lmv/lmv_internal.h | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h deleted file mode 100644 index c27c3c32188d..000000000000 --- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h +++ /dev/null @@ -1,164 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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) 2004, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - */ - -#ifndef _LMV_INTERNAL_H_ -#define _LMV_INTERNAL_H_ - -#include <uapi/linux/lustre/lustre_idl.h> -#include <obd.h> -#include <lustre_lmv.h> - -#define LMV_MAX_TGT_COUNT 128 - -#define LL_IT2STR(it) \ - ((it) ? ldlm_it2str((it)->it_op) : "0") - -int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data, - struct lookup_intent *it, struct ptlrpc_request **reqp, - ldlm_blocking_callback cb_blocking, - __u64 extra_lock_flags); - -int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds); -int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds); -int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp, - struct lu_fid *fid, struct md_op_data *op_data); - -int lmv_revalidate_slaves(struct obd_export *exp, - const struct lmv_stripe_md *lsm, - ldlm_blocking_callback cb_blocking, - int extra_lock_flags); - -static inline struct obd_device *lmv2obd_dev(struct lmv_obd *lmv) -{ - return container_of0(lmv, struct obd_device, u.lmv); -} - -static inline struct lmv_tgt_desc * -lmv_get_target(struct lmv_obd *lmv, u32 mdt_idx, int *index) -{ - int i; - - for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - if (!lmv->tgts[i]) - continue; - - if (lmv->tgts[i]->ltd_idx == mdt_idx) { - if (index) - *index = i; - return lmv->tgts[i]; - } - } - - return ERR_PTR(-ENODEV); -} - -static inline int -lmv_find_target_index(struct lmv_obd *lmv, const struct lu_fid *fid) -{ - struct lmv_tgt_desc *ltd; - u32 mdt_idx = 0; - int index = 0; - - if (lmv->desc.ld_tgt_count > 1) { - int rc; - - rc = lmv_fld_lookup(lmv, fid, &mdt_idx); - if (rc < 0) - return rc; - } - - ltd = lmv_get_target(lmv, mdt_idx, &index); - if (IS_ERR(ltd)) - return PTR_ERR(ltd); - - return index; -} - -static inline struct lmv_tgt_desc * -lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid) -{ - int index; - - index = lmv_find_target_index(lmv, fid); - if (index < 0) - return ERR_PTR(index); - - return lmv->tgts[index]; -} - -static inline int lmv_stripe_md_size(int stripe_count) -{ - struct lmv_stripe_md *lsm; - - return sizeof(*lsm) + stripe_count * sizeof(lsm->lsm_md_oinfo[0]); -} - -int lmv_name_to_stripe_index(enum lmv_hash_type hashtype, - unsigned int max_mdt_index, - const char *name, int namelen); - -static inline const struct lmv_oinfo * -lsm_name_to_stripe_info(const struct lmv_stripe_md *lsm, const char *name, - int namelen) -{ - int stripe_index; - - stripe_index = lmv_name_to_stripe_index(lsm->lsm_md_hash_type, - lsm->lsm_md_stripe_count, - name, namelen); - if (stripe_index < 0) - return ERR_PTR(stripe_index); - - LASSERTF(stripe_index < lsm->lsm_md_stripe_count, - "stripe_index = %d, stripe_count = %d hash_type = %x name = %.*s\n", - stripe_index, lsm->lsm_md_stripe_count, - lsm->lsm_md_hash_type, namelen, name); - - return &lsm->lsm_md_oinfo[stripe_index]; -} - -static inline bool lmv_need_try_all_stripes(const struct lmv_stripe_md *lsm) -{ - return !lmv_is_known_hash_type(lsm->lsm_md_hash_type) || - lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION; -} - -struct lmv_tgt_desc -*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data, - struct lu_fid *fid); -/* lproc_lmv.c */ -void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars); - -extern const struct file_operations lmv_proc_target_fops; - -#endif |