1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef OST_INTERNAL_H
38 #define OST_INTERNAL_H
40 #define OSS_SERVICE_WATCHDOG_FACTOR 2
43 * tunables for per-thread page pool (bug 5137)
45 #define OST_THREAD_POOL_SIZE PTLRPC_MAX_BRW_PAGES /* pool size in pages */
46 #define OST_THREAD_POOL_GFP CFS_ALLOC_HIGHUSER /* GFP mask for pool pages */
51 struct ptlrpc_request;
54 * struct ost_thread_local_cache is allocated and initialized for each OST
55 * thread by ost_thread_init().
57 struct ost_thread_local_cache {
59 * pool of nio buffers used by write-path
61 struct niobuf_local local [OST_THREAD_POOL_SIZE];
64 struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r);
66 #define OSS_MIN_CREATE_THREADS 2UL
67 #define OSS_MAX_CREATE_THREADS 16UL
70 extern quota_interface_t *quota_interface;
73 void lprocfs_ost_init_vars(struct lprocfs_static_vars *lvars);
75 static void lprocfs_ost_init_vars(struct lprocfs_static_vars *lvars)
77 memset(lvars, 0, sizeof(*lvars));
81 #endif /* OST_INTERNAL_H */