diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov/lovsub_object.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lovsub_object.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c deleted file mode 100644 index 13d452086b61..000000000000 --- a/drivers/staging/lustre/lustre/lov/lovsub_object.c +++ /dev/null @@ -1,180 +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) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, 2015 Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * Implementation of cl_object for LOVSUB layer. - * - * Author: Nikita Danilov <nikita.danilov@sun.com> - */ - -#define DEBUG_SUBSYSTEM S_LOV - -#include "lov_cl_internal.h" - -/** \addtogroup lov - * @{ - */ - -/***************************************************************************** - * - * Lovsub object operations. - * - */ - -int lovsub_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf) -{ - struct lovsub_device *dev = lu2lovsub_dev(obj->lo_dev); - struct lu_object *below; - struct lu_device *under; - - int result; - - under = &dev->acid_next->cd_lu_dev; - below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); - if (below) { - lu_object_add(obj, below); - cl_object_page_init(lu2cl(obj), sizeof(struct lovsub_page)); - result = 0; - } else { - result = -ENOMEM; - } - return result; -} - -static void lovsub_object_free(const struct lu_env *env, struct lu_object *obj) -{ - struct lovsub_object *los = lu2lovsub(obj); - struct lov_object *lov = los->lso_super; - - /* We can't assume lov was assigned here, because of the shadow - * object handling in lu_object_find. - */ - if (lov) { - LASSERT(lov->lo_type == LLT_RAID0); - LASSERT(lov->u.raid0.lo_sub[los->lso_index] == los); - spin_lock(&lov->u.raid0.lo_sub_lock); - lov->u.raid0.lo_sub[los->lso_index] = NULL; - spin_unlock(&lov->u.raid0.lo_sub_lock); - } - - lu_object_fini(obj); - lu_object_header_fini(&los->lso_header.coh_lu); - kmem_cache_free(lovsub_object_kmem, los); -} - -static int lovsub_object_print(const struct lu_env *env, void *cookie, - lu_printer_t p, const struct lu_object *obj) -{ - struct lovsub_object *los = lu2lovsub(obj); - - return (*p)(env, cookie, "[%d]", los->lso_index); -} - -static int lovsub_attr_update(const struct lu_env *env, struct cl_object *obj, - const struct cl_attr *attr, unsigned int valid) -{ - struct lov_object *lov = cl2lovsub(obj)->lso_super; - - lov_r0(lov)->lo_attr_valid = 0; - return 0; -} - -static int lovsub_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, - struct ost_lvb *lvb) -{ - struct lovsub_object *los = cl2lovsub(obj); - - return cl_object_glimpse(env, &los->lso_super->lo_cl, lvb); -} - -/** - * Implementation of struct cl_object_operations::coo_req_attr_set() for lovsub - * layer. Lov and lovsub are responsible only for struct obdo::o_stripe_idx - * field, which is filled there. - */ -static void lovsub_req_attr_set(const struct lu_env *env, struct cl_object *obj, - struct cl_req_attr *attr) -{ - struct lovsub_object *subobj = cl2lovsub(obj); - - cl_req_attr_set(env, &subobj->lso_super->lo_cl, attr); - - /* - * There is no OBD_MD_* flag for obdo::o_stripe_idx, so set it - * unconditionally. It never changes anyway. - */ - attr->cra_oa->o_stripe_idx = subobj->lso_index; -} - -static const struct cl_object_operations lovsub_ops = { - .coo_page_init = lovsub_page_init, - .coo_lock_init = lovsub_lock_init, - .coo_attr_update = lovsub_attr_update, - .coo_glimpse = lovsub_object_glimpse, - .coo_req_attr_set = lovsub_req_attr_set -}; - -static const struct lu_object_operations lovsub_lu_obj_ops = { - .loo_object_init = lovsub_object_init, - .loo_object_delete = NULL, - .loo_object_release = NULL, - .loo_object_free = lovsub_object_free, - .loo_object_print = lovsub_object_print, - .loo_object_invariant = NULL -}; - -struct lu_object *lovsub_object_alloc(const struct lu_env *env, - const struct lu_object_header *unused, - struct lu_device *dev) -{ - struct lovsub_object *los; - struct lu_object *obj; - - los = kmem_cache_zalloc(lovsub_object_kmem, GFP_NOFS); - if (los) { - struct cl_object_header *hdr; - - obj = lovsub2lu(los); - hdr = &los->lso_header; - cl_object_header_init(hdr); - lu_object_init(obj, &hdr->coh_lu, dev); - lu_object_add_top(&hdr->coh_lu, obj); - los->lso_cl.co_ops = &lovsub_ops; - obj->lo_ops = &lovsub_lu_obj_ops; - } else { - obj = NULL; - } - return obj; -} - -/** @} lov */ |