1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * Basic Lustre library routines.
28 #include <asm/types.h>
36 inline void lustre_put_page(struct page *page);
37 struct page *lustre_get_page_read(struct inode *dir, unsigned long index);
38 struct page *lustre_get_page_write(struct inode *dir, unsigned long index);
39 int lustre_commit_page(struct page *page, unsigned from, unsigned to);
43 void push_ctxt(struct obd_run_ctxt *save, struct obd_run_ctxt *new);
44 void pop_ctxt(struct obd_run_ctxt *saved);
45 int simple_mkdir(struct dentry *dir, char *name, int mode);
46 int lustre_fread(struct file *file, char *str, int len, loff_t *off);
47 int lustre_fwrite(struct file *file, const char *str, int len, loff_t *off);
48 int lustre_fsync(struct file *file);
50 #define ASSERT_MAX_SIZE_MB 50000ULL
51 #define ASSERT_PAGE_INDEX(index, OP) \
52 do { if (index > ASSERT_MAX_SIZE_MB << (20 - PAGE_SHIFT)) { \
53 CERROR("bad page index %lu > %Lu\n", index, \
54 ASSERT_MAX_SIZE_MB << (20 - PAGE_SHIFT)); \
55 portal_debug = ~0UL; \
59 #define ASSERT_FILE_OFFSET(offset, OP) \
60 do { if (offset > ASSERT_MAX_SIZE_MB << 20) { \
61 CERROR("bad file offset %Lu > %Lu\n", offset, \
62 ASSERT_MAX_SIZE_MB << 20); \
63 portal_debug = ~0UL; \
67 static inline void ll_sleep(int t)
69 set_current_state(TASK_INTERRUPTIBLE);
70 schedule_timeout(t * HZ);
71 set_current_state(TASK_RUNNING);
75 #include <linux/portals_lib.h>
77 #endif /* _LUSTRE_LIB_H */