diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov/lov_page.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lov_page.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c deleted file mode 100644 index cfae1294d77a..000000000000 --- a/drivers/staging/lustre/lustre/lov/lov_page.c +++ /dev/null @@ -1,136 +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) 2011, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * Implementation of cl_page for LOV layer. - * - * Author: Nikita Danilov <nikita.danilov@sun.com> - * Author: Jinshan Xiong <jinshan.xiong@intel.com> - */ - -#define DEBUG_SUBSYSTEM S_LOV - -#include "lov_cl_internal.h" - -/** \addtogroup lov - * @{ - */ - -/***************************************************************************** - * - * Lov page operations. - * - */ - -static int lov_raid0_page_print(const struct lu_env *env, - const struct cl_page_slice *slice, - void *cookie, lu_printer_t printer) -{ - struct lov_page *lp = cl2lov_page(slice); - - return (*printer)(env, cookie, LUSTRE_LOV_NAME "-page@%p, raid0\n", lp); -} - -static const struct cl_page_operations lov_raid0_page_ops = { - .cpo_print = lov_raid0_page_print -}; - -int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, pgoff_t index) -{ - struct lov_object *loo = cl2lov(obj); - struct lov_layout_raid0 *r0 = lov_r0(loo); - struct lov_io *lio = lov_env_io(env); - struct cl_object *subobj; - struct cl_object *o; - struct lov_io_sub *sub; - struct lov_page *lpg = cl_object_page_slice(obj, page); - loff_t offset; - u64 suboff; - int stripe; - int rc; - - offset = cl_offset(obj, index); - stripe = lov_stripe_number(loo->lo_lsm, offset); - LASSERT(stripe < r0->lo_nr); - rc = lov_stripe_offset(loo->lo_lsm, offset, stripe, &suboff); - LASSERT(rc == 0); - - lpg->lps_stripe = stripe; - cl_page_slice_add(page, &lpg->lps_cl, obj, index, &lov_raid0_page_ops); - - sub = lov_sub_get(env, lio, stripe); - if (IS_ERR(sub)) - return PTR_ERR(sub); - - subobj = lovsub2cl(r0->lo_sub[stripe]); - list_for_each_entry(o, &subobj->co_lu.lo_header->loh_layers, - co_lu.lo_linkage) { - if (o->co_ops->coo_page_init) { - rc = o->co_ops->coo_page_init(sub->sub_env, o, page, - cl_index(subobj, suboff)); - if (rc != 0) - break; - } - } - - return rc; -} - -static int lov_empty_page_print(const struct lu_env *env, - const struct cl_page_slice *slice, - void *cookie, lu_printer_t printer) -{ - struct lov_page *lp = cl2lov_page(slice); - - return (*printer)(env, cookie, LUSTRE_LOV_NAME "-page@%p, empty.\n", - lp); -} - -static const struct cl_page_operations lov_empty_page_ops = { - .cpo_print = lov_empty_page_print -}; - -int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, pgoff_t index) -{ - struct lov_page *lpg = cl_object_page_slice(obj, page); - void *addr; - - cl_page_slice_add(page, &lpg->lps_cl, obj, index, &lov_empty_page_ops); - addr = kmap(page->cp_vmpage); - memset(addr, 0, cl_page_size(obj)); - kunmap(page->cp_vmpage); - cl_page_export(env, page, 1); - return 0; -} - -/** @} lov */ |