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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [ocfs2/] [buffer_head_io.h] - Blame information for rev 78

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/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * ocfs2_buffer_head.h
 *
 * Buffer cache handling functions defined
 *
 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */
 
#ifndef OCFS2_BUFFER_HEAD_IO_H
#define OCFS2_BUFFER_HEAD_IO_H
 
#include <linux/buffer_head.h>
 
void ocfs2_end_buffer_io_sync(struct buffer_head *bh,
                             int uptodate);
 
static inline int ocfs2_read_block(struct ocfs2_super          *osb,
                                   u64                  off,
                                   struct buffer_head **bh,
                                   int                  flags,
                                   struct inode        *inode);
 
int ocfs2_write_block(struct ocfs2_super          *osb,
                      struct buffer_head  *bh,
                      struct inode        *inode);
int ocfs2_read_blocks(struct ocfs2_super          *osb,
                      u64                  block,
                      int                  nr,
                      struct buffer_head  *bhs[],
                      int                  flags,
                      struct inode        *inode);
 
 
#define OCFS2_BH_CACHED            1
#define OCFS2_BH_READAHEAD         8
 
static inline int ocfs2_read_block(struct ocfs2_super * osb, u64 off,
                                   struct buffer_head **bh, int flags,
                                   struct inode *inode)
{
        int status = 0;
 
        if (bh == NULL) {
                printk("ocfs2: bh == NULL\n");
                status = -EINVAL;
                goto bail;
        }
 
        status = ocfs2_read_blocks(osb, off, 1, bh,
                                   flags, inode);
 
bail:
        return status;
}
 
#endif /* OCFS2_BUFFER_HEAD_IO_H */

Line No.	Rev	Author	Line
1	62	marcus.erl	`/* -- mode: c; c-basic-offset: 8; --`
2			`* vim: noexpandtab sw=8 ts=8 sts=0:`
3			`*`
4			`* ocfs2_buffer_head.h`
5			`*`
6			`* Buffer cache handling functions defined`
7			`*`
8			`* Copyright (C) 2002, 2004 Oracle. All rights reserved.`
9			`*`
10			`* This program is free software; you can redistribute it and/or`
11			`* modify it under the terms of the GNU General Public`
12			`* License as published by the Free Software Foundation; either`
13			`* version 2 of the License, or (at your option) any later version.`
14			`*`
15			`* This program is distributed in the hope that it will be useful,`
16			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
17			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
18			`* General Public License for more details.`
19			`*`
20			`* You should have received a copy of the GNU General Public`
21			`* License along with this program; if not, write to the`
22			`* Free Software Foundation, Inc., 59 Temple Place - Suite 330,`
23			`* Boston, MA 021110-1307, USA.`
24			`*/`
25
26			`#ifndef OCFS2_BUFFER_HEAD_IO_H`
27			`#define OCFS2_BUFFER_HEAD_IO_H`
28
29			`#include <linux/buffer_head.h>`
30
31			`void ocfs2_end_buffer_io_sync(struct buffer_head *bh,`
32			`int uptodate);`
33
34			`static inline int ocfs2_read_block(struct ocfs2_super *osb,`
35			`u64 off,`
36			`struct buffer_head **bh,`
37			`int flags,`
38			`struct inode *inode);`
39
40			`int ocfs2_write_block(struct ocfs2_super *osb,`
41			`struct buffer_head *bh,`
42			`struct inode *inode);`
43			`int ocfs2_read_blocks(struct ocfs2_super *osb,`
44			`u64 block,`
45			`int nr,`
46			`struct buffer_head *bhs[],`
47			`int flags,`
48			`struct inode *inode);`
49
50
51			`#define OCFS2_BH_CACHED 1`
52			`#define OCFS2_BH_READAHEAD 8`
53
54			`static inline int ocfs2_read_block(struct ocfs2_super * osb, u64 off,`
55			`struct buffer_head **bh, int flags,`
56			`struct inode *inode)`
57			`{`
58			`int status = 0;`
59
60			`if (bh == NULL) {`
61			`printk("ocfs2: bh == NULL\n");`
62			`status = -EINVAL;`
63			`goto bail;`
64			`}`
65
66			`status = ocfs2_read_blocks(osb, off, 1, bh,`
67			`flags, inode);`
68
69			`bail:`
70			`return status;`
71			`}`
72
73			`#endif /* OCFS2_BUFFER_HEAD_IO_H */`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [ocfs2/] [buffer_head_io.h] - Blame information for rev 78