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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [ocfs2/] [ocfs2_lockid.h] - Blame information for rev 62

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/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * ocfs2_lockid.h
 *
 * Defines OCFS2 lockid bits.
 *
 * Copyright (C) 2002, 2005 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_LOCKID_H
#define OCFS2_LOCKID_H
 
/* lock ids are made up in the following manner:
 * name[0]     --> type
 * name[1-6]   --> 6 pad characters, reserved for now
 * name[7-22]  --> block number, expressed in hex as 16 chars
 * name[23-30] --> i_generation, expressed in hex 8 chars
 * name[31]    --> '\0' */
#define OCFS2_LOCK_ID_MAX_LEN  32
#define OCFS2_LOCK_ID_PAD "000000"
 
#define OCFS2_DENTRY_LOCK_INO_START 18
 
enum ocfs2_lock_type {
        OCFS2_LOCK_TYPE_META = 0,
        OCFS2_LOCK_TYPE_DATA,
        OCFS2_LOCK_TYPE_SUPER,
        OCFS2_LOCK_TYPE_RENAME,
        OCFS2_LOCK_TYPE_RW,
        OCFS2_LOCK_TYPE_DENTRY,
        OCFS2_LOCK_TYPE_OPEN,
        OCFS2_NUM_LOCK_TYPES
};
 
static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
{
        char c;
        switch (type) {
                case OCFS2_LOCK_TYPE_META:
                        c = 'M';
                        break;
                case OCFS2_LOCK_TYPE_DATA:
                        c = 'D';
                        break;
                case OCFS2_LOCK_TYPE_SUPER:
                        c = 'S';
                        break;
                case OCFS2_LOCK_TYPE_RENAME:
                        c = 'R';
                        break;
                case OCFS2_LOCK_TYPE_RW:
                        c = 'W';
                        break;
                case OCFS2_LOCK_TYPE_DENTRY:
                        c = 'N';
                        break;
                case OCFS2_LOCK_TYPE_OPEN:
                        c = 'O';
                        break;
                default:
                        c = '\0';
        }
 
        return c;
}
 
static char *ocfs2_lock_type_strings[] = {
        [OCFS2_LOCK_TYPE_META] = "Meta",
        [OCFS2_LOCK_TYPE_DATA] = "Data",
        [OCFS2_LOCK_TYPE_SUPER] = "Super",
        [OCFS2_LOCK_TYPE_RENAME] = "Rename",
        /* Need to differntiate from [R]ename.. serializing writes is the
         * important job it does, anyway. */
        [OCFS2_LOCK_TYPE_RW] = "Write/Read",
        [OCFS2_LOCK_TYPE_DENTRY] = "Dentry",
        [OCFS2_LOCK_TYPE_OPEN] = "Open",
};
 
static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
{
#ifdef __KERNEL__
        mlog_bug_on_msg(type >= OCFS2_NUM_LOCK_TYPES, "%d\n", type);
#endif
        return ocfs2_lock_type_strings[type];
}
 
#endif  /* OCFS2_LOCKID_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_lockid.h`
5			`*`
6			`* Defines OCFS2 lockid bits.`
7			`*`
8			`* Copyright (C) 2002, 2005 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_LOCKID_H`
27			`#define OCFS2_LOCKID_H`
28
29			`/* lock ids are made up in the following manner:`
30			`* name[0] --> type`
31			`* name[1-6] --> 6 pad characters, reserved for now`
32			`* name[7-22] --> block number, expressed in hex as 16 chars`
33			`* name[23-30] --> i_generation, expressed in hex 8 chars`
34			`* name[31] --> '\0' */`
35			`#define OCFS2_LOCK_ID_MAX_LEN 32`
36			`#define OCFS2_LOCK_ID_PAD "000000"`
37
38			`#define OCFS2_DENTRY_LOCK_INO_START 18`
39
40			`enum ocfs2_lock_type {`
41			`OCFS2_LOCK_TYPE_META = 0,`
42			`OCFS2_LOCK_TYPE_DATA,`
43			`OCFS2_LOCK_TYPE_SUPER,`
44			`OCFS2_LOCK_TYPE_RENAME,`
45			`OCFS2_LOCK_TYPE_RW,`
46			`OCFS2_LOCK_TYPE_DENTRY,`
47			`OCFS2_LOCK_TYPE_OPEN,`
48			`OCFS2_NUM_LOCK_TYPES`
49			`};`
50
51			`static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)`
52			`{`
53			`char c;`
54			`switch (type) {`
55			`case OCFS2_LOCK_TYPE_META:`
56			`c = 'M';`
57			`break;`
58			`case OCFS2_LOCK_TYPE_DATA:`
59			`c = 'D';`
60			`break;`
61			`case OCFS2_LOCK_TYPE_SUPER:`
62			`c = 'S';`
63			`break;`
64			`case OCFS2_LOCK_TYPE_RENAME:`
65			`c = 'R';`
66			`break;`
67			`case OCFS2_LOCK_TYPE_RW:`
68			`c = 'W';`
69			`break;`
70			`case OCFS2_LOCK_TYPE_DENTRY:`
71			`c = 'N';`
72			`break;`
73			`case OCFS2_LOCK_TYPE_OPEN:`
74			`c = 'O';`
75			`break;`
76			`default:`
77			`c = '\0';`
78			`}`
79
80			`return c;`
81			`}`
82
83			`static char *ocfs2_lock_type_strings[] = {`
84			`[OCFS2_LOCK_TYPE_META] = "Meta",`
85			`[OCFS2_LOCK_TYPE_DATA] = "Data",`
86			`[OCFS2_LOCK_TYPE_SUPER] = "Super",`
87			`[OCFS2_LOCK_TYPE_RENAME] = "Rename",`
88			`/* Need to differntiate from [R]ename.. serializing writes is the`
89			`* important job it does, anyway. */`
90			`[OCFS2_LOCK_TYPE_RW] = "Write/Read",`
91			`[OCFS2_LOCK_TYPE_DENTRY] = "Dentry",`
92			`[OCFS2_LOCK_TYPE_OPEN] = "Open",`
93			`};`
94
95			`static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)`
96			`{`
97			`#ifdef __KERNEL__`
98			`mlog_bug_on_msg(type >= OCFS2_NUM_LOCK_TYPES, "%d\n", type);`
99			`#endif`
100			`return ocfs2_lock_type_strings[type];`
101			`}`
102
103			`#endif /* OCFS2_LOCKID_H */`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [ocfs2/] [ocfs2_lockid.h] - Blame information for rev 62