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1/*
2 * Copyright (c) 2001-2005 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_SYSCTL_H__
19#define __XFS_SYSCTL_H__
20
21#include <linux/sysctl.h>
22
23/*
24 * Tunable xfs parameters
25 */
26
27typedef struct xfs_sysctl_val {
28 int min;
29 int val;
30 int max;
31} xfs_sysctl_val_t;
32
33typedef struct xfs_param {
34 xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is
35 * not a member of parent dir GID. */
36 xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
37 xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
38 xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
39 xfs_sysctl_val_t syncd_timer; /* Interval between xfssyncd wakeups */
40 xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
41 xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
42 xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
43 xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
44 xfs_sysctl_val_t xfs_buf_timer; /* Interval between xfsbufd wakeups. */
45 xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
46 xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
47 xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
48 xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
49 xfs_sysctl_val_t fstrm_timer; /* Filestream dir-AG assoc'n timeout. */
50 xfs_sysctl_val_t eofb_timer; /* Interval between eofb scan wakeups */
51 xfs_sysctl_val_t cowb_timer; /* Interval between cowb scan wakeups */
52} xfs_param_t;
53
54/*
55 * xfs_error_level:
56 *
57 * How much error reporting will be done when internal problems are
58 * encountered. These problems normally return an EFSCORRUPTED to their
59 * caller, with no other information reported.
60 *
61 * 0 No error reports
62 * 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
63 * 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
64 * additional errors that are known to not cause shutdowns)
65 *
66 * xfs_panic_mask bit 0x8 turns the error reports into panics
67 */
68
69enum {
70 /* XFS_REFCACHE_SIZE = 1 */
71 /* XFS_REFCACHE_PURGE = 2 */
72 /* XFS_RESTRICT_CHOWN = 3 */
73 XFS_SGID_INHERIT = 4,
74 XFS_SYMLINK_MODE = 5,
75 XFS_PANIC_MASK = 6,
76 XFS_ERRLEVEL = 7,
77 XFS_SYNCD_TIMER = 8,
78 /* XFS_PROBE_DMAPI = 9 */
79 /* XFS_PROBE_IOOPS = 10 */
80 /* XFS_PROBE_QUOTA = 11 */
81 XFS_STATS_CLEAR = 12,
82 XFS_INHERIT_SYNC = 13,
83 XFS_INHERIT_NODUMP = 14,
84 XFS_INHERIT_NOATIME = 15,
85 XFS_BUF_TIMER = 16,
86 XFS_BUF_AGE = 17,
87 /* XFS_IO_BYPASS = 18 */
88 XFS_INHERIT_NOSYM = 19,
89 XFS_ROTORSTEP = 20,
90 XFS_INHERIT_NODFRG = 21,
91 XFS_FILESTREAM_TIMER = 22,
92};
93
94extern xfs_param_t xfs_params;
95
96struct xfs_globals {
97 int log_recovery_delay; /* log recovery delay (secs) */
98 bool bug_on_assert; /* BUG() the kernel on assert failure */
99};
100extern struct xfs_globals xfs_globals;
101
102#ifdef CONFIG_SYSCTL
103extern int xfs_sysctl_register(void);
104extern void xfs_sysctl_unregister(void);
105#else
106# define xfs_sysctl_register() (0)
107# define xfs_sysctl_unregister() do { } while (0)
108#endif /* CONFIG_SYSCTL */
109
110#endif /* __XFS_SYSCTL_H__ */
1/*
2 * Copyright (c) 2001-2005 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_SYSCTL_H__
19#define __XFS_SYSCTL_H__
20
21#include <linux/sysctl.h>
22
23/*
24 * Tunable xfs parameters
25 */
26
27typedef struct xfs_sysctl_val {
28 int min;
29 int val;
30 int max;
31} xfs_sysctl_val_t;
32
33typedef struct xfs_param {
34 xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is
35 * not a member of parent dir GID. */
36 xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
37 xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
38 xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
39 xfs_sysctl_val_t syncd_timer; /* Interval between xfssyncd wakeups */
40 xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
41 xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
42 xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
43 xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
44 xfs_sysctl_val_t xfs_buf_timer; /* Interval between xfsbufd wakeups. */
45 xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
46 xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
47 xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
48 xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
49 xfs_sysctl_val_t fstrm_timer; /* Filestream dir-AG assoc'n timeout. */
50 xfs_sysctl_val_t eofb_timer; /* Interval between eofb scan wakeups */
51 xfs_sysctl_val_t cowb_timer; /* Interval between cowb scan wakeups */
52} xfs_param_t;
53
54/*
55 * xfs_error_level:
56 *
57 * How much error reporting will be done when internal problems are
58 * encountered. These problems normally return an EFSCORRUPTED to their
59 * caller, with no other information reported.
60 *
61 * 0 No error reports
62 * 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
63 * 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
64 * additional errors that are known to not cause shutdowns)
65 *
66 * xfs_panic_mask bit 0x8 turns the error reports into panics
67 */
68
69enum {
70 /* XFS_REFCACHE_SIZE = 1 */
71 /* XFS_REFCACHE_PURGE = 2 */
72 /* XFS_RESTRICT_CHOWN = 3 */
73 XFS_SGID_INHERIT = 4,
74 XFS_SYMLINK_MODE = 5,
75 XFS_PANIC_MASK = 6,
76 XFS_ERRLEVEL = 7,
77 XFS_SYNCD_TIMER = 8,
78 /* XFS_PROBE_DMAPI = 9 */
79 /* XFS_PROBE_IOOPS = 10 */
80 /* XFS_PROBE_QUOTA = 11 */
81 XFS_STATS_CLEAR = 12,
82 XFS_INHERIT_SYNC = 13,
83 XFS_INHERIT_NODUMP = 14,
84 XFS_INHERIT_NOATIME = 15,
85 XFS_BUF_TIMER = 16,
86 XFS_BUF_AGE = 17,
87 /* XFS_IO_BYPASS = 18 */
88 XFS_INHERIT_NOSYM = 19,
89 XFS_ROTORSTEP = 20,
90 XFS_INHERIT_NODFRG = 21,
91 XFS_FILESTREAM_TIMER = 22,
92};
93
94extern xfs_param_t xfs_params;
95
96struct xfs_globals {
97 int log_recovery_delay; /* log recovery delay (secs) */
98};
99extern struct xfs_globals xfs_globals;
100
101#ifdef CONFIG_SYSCTL
102extern int xfs_sysctl_register(void);
103extern void xfs_sysctl_unregister(void);
104#else
105# define xfs_sysctl_register() (0)
106# define xfs_sysctl_unregister() do { } while (0)
107#endif /* CONFIG_SYSCTL */
108
109#endif /* __XFS_SYSCTL_H__ */