4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
34 * Implementation of cl_page for LOVSUB layer.
36 * Author: Nikita Danilov <nikita.danilov@sun.com>
39 #define DEBUG_SUBSYSTEM S_LOV
41 #include "lov_cl_internal.h"
47 /*****************************************************************************
49 * Lovsub page operations.
53 static void lovsub_page_fini(const struct lu_env *env,
54 struct cl_page_slice *slice)
56 struct lovsub_page *lsb = cl2lovsub_page(slice);
58 OBD_SLAB_FREE_PTR(lsb, lovsub_page_kmem);
62 static const struct cl_page_operations lovsub_page_ops = {
63 .cpo_fini = lovsub_page_fini
66 struct cl_page *lovsub_page_init(const struct lu_env *env,
67 struct cl_object *obj,
68 struct cl_page *page, cfs_page_t *unused)
70 struct lovsub_page *lsb;
74 OBD_SLAB_ALLOC_PTR_GFP(lsb, lovsub_page_kmem, CFS_ALLOC_IO);
76 cl_page_slice_add(page, &lsb->lsb_cl, obj, &lovsub_page_ops);
80 RETURN(ERR_PTR(result));