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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [xfs/] [support/] [ktrace.h] - Blame information for rev 62

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/*
 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 * 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.
 *
 * This program is distributed in the hope that it would 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 the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_SUPPORT_KTRACE_H__
#define __XFS_SUPPORT_KTRACE_H__
 
#include <spin.h>
 
/*
 * Trace buffer entry structure.
 */
typedef struct ktrace_entry {
        void    *val[16];
} ktrace_entry_t;
 
/*
 * Trace buffer header structure.
 */
typedef struct ktrace {
        lock_t          kt_lock;        /* mutex to guard counters */
        int             kt_nentries;    /* number of entries in trace buf */
        int             kt_index;       /* current index in entries */
        int             kt_rollover;
        ktrace_entry_t  *kt_entries;    /* buffer of entries */
} ktrace_t;
 
/*
 * Trace buffer snapshot structure.
 */
typedef struct ktrace_snap {
        int             ks_start;       /* kt_index at time of snap */
        int             ks_index;       /* current index */
} ktrace_snap_t;
 
 
#ifdef CONFIG_XFS_TRACE
 
extern void ktrace_init(int zentries);
extern void ktrace_uninit(void);
 
extern ktrace_t *ktrace_alloc(int, unsigned int __nocast);
extern void ktrace_free(ktrace_t *);
 
extern void ktrace_enter(
        ktrace_t        *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *,
        void            *);
 
extern ktrace_entry_t   *ktrace_first(ktrace_t *, ktrace_snap_t *);
extern int              ktrace_nentries(ktrace_t *);
extern ktrace_entry_t   *ktrace_next(ktrace_t *, ktrace_snap_t *);
extern ktrace_entry_t   *ktrace_skip(ktrace_t *, int, ktrace_snap_t *);
 
#else
#define ktrace_init(x)  do { } while (0)
#define ktrace_uninit() do { } while (0)
#endif  /* CONFIG_XFS_TRACE */
 
#endif  /* __XFS_SUPPORT_KTRACE_H__ */

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.`
3			`* All Rights Reserved.`
4			`*`
5			`* This program is free software; you can redistribute it and/or`
6			`* modify it under the terms of the GNU General Public License as`
7			`* published by the Free Software Foundation.`
8			`*`
9			`* This program is distributed in the hope that it would be useful,`
10			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
11			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
12			`* GNU General Public License for more details.`
13			`*`
14			`* You should have received a copy of the GNU General Public License`
15			`* along with this program; if not, write the Free Software Foundation,`
16			`* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA`
17			`*/`
18			`#ifndef __XFS_SUPPORT_KTRACE_H__`
19			`#define __XFS_SUPPORT_KTRACE_H__`
20
21			`#include <spin.h>`
22
23			`/*`
24			`* Trace buffer entry structure.`
25			`*/`
26			`typedef struct ktrace_entry {`
27			`void *val[16];`
28			`} ktrace_entry_t;`
29
30			`/*`
31			`* Trace buffer header structure.`
32			`*/`
33			`typedef struct ktrace {`
34			`lock_t kt_lock; /* mutex to guard counters */`
35			`int kt_nentries; /* number of entries in trace buf */`
36			`int kt_index; /* current index in entries */`
37			`int kt_rollover;`
38			`ktrace_entry_t kt_entries; / buffer of entries */`
39			`} ktrace_t;`
40
41			`/*`
42			`* Trace buffer snapshot structure.`
43			`*/`
44			`typedef struct ktrace_snap {`
45			`int ks_start; /* kt_index at time of snap */`
46			`int ks_index; /* current index */`
47			`} ktrace_snap_t;`
48
49
50			`#ifdef CONFIG_XFS_TRACE`
51
52			`extern void ktrace_init(int zentries);`
53			`extern void ktrace_uninit(void);`
54
55			`extern ktrace_t *ktrace_alloc(int, unsigned int __nocast);`
56			`extern void ktrace_free(ktrace_t *);`
57
58			`extern void ktrace_enter(`
59			`ktrace_t *,`
60			`void *,`
61			`void *,`
62			`void *,`
63			`void *,`
64			`void *,`
65			`void *,`
66			`void *,`
67			`void *,`
68			`void *,`
69			`void *,`
70			`void *,`
71			`void *,`
72			`void *,`
73			`void *,`
74			`void *,`
75			`void *);`
76
77			`extern ktrace_entry_t ktrace_first(ktrace_t , ktrace_snap_t *);`
78			`extern int ktrace_nentries(ktrace_t *);`
79			`extern ktrace_entry_t ktrace_next(ktrace_t , ktrace_snap_t *);`
80			`extern ktrace_entry_t ktrace_skip(ktrace_t , int, ktrace_snap_t *);`
81
82			`#else`
83			`#define ktrace_init(x) do { } while (0)`
84			`#define ktrace_uninit() do { } while (0)`
85			`#endif /* CONFIG_XFS_TRACE */`
86
87			`#endif /* __XFS_SUPPORT_KTRACE_H__ */`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [xfs/] [support/] [ktrace.h] - Blame information for rev 62