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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2001-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #ifndef __XFS_SYSCTL_H__ |
19 | #define __XFS_SYSCTL_H__ | |
20 | ||
21 | #include <linux/sysctl.h> | |
22 | ||
23 | /* | |
24 | * Tunable xfs parameters | |
25 | */ | |
26 | ||
27 | typedef struct xfs_sysctl_val { | |
28 | int min; | |
29 | int val; | |
30 | int max; | |
31 | } xfs_sysctl_val_t; | |
32 | ||
33 | typedef struct xfs_param { | |
1da177e4 LT |
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 */ | |
d3446eac | 48 | xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */ |
2a82b8be | 49 | xfs_sysctl_val_t fstrm_timer; /* Filestream dir-AG assoc'n timeout. */ |
579b62fa | 50 | xfs_sysctl_val_t eofb_timer; /* Interval between eofb scan wakeups */ |
83104d44 | 51 | xfs_sysctl_val_t cowb_timer; /* Interval between cowb scan wakeups */ |
1da177e4 LT |
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 | ||
69 | enum { | |
70 | /* XFS_REFCACHE_SIZE = 1 */ | |
71 | /* XFS_REFCACHE_PURGE = 2 */ | |
e0b8e8b6 | 72 | /* XFS_RESTRICT_CHOWN = 3 */ |
1da177e4 LT |
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, | |
d3446eac | 90 | XFS_INHERIT_NODFRG = 21, |
2a82b8be | 91 | XFS_FILESTREAM_TIMER = 22, |
1da177e4 LT |
92 | }; |
93 | ||
94 | extern xfs_param_t xfs_params; | |
95 | ||
2e227178 BF |
96 | struct xfs_globals { |
97 | int log_recovery_delay; /* log recovery delay (secs) */ | |
98 | }; | |
99 | extern struct xfs_globals xfs_globals; | |
100 | ||
1da177e4 | 101 | #ifdef CONFIG_SYSCTL |
9f8868ff | 102 | extern int xfs_sysctl_register(void); |
1da177e4 LT |
103 | extern void xfs_sysctl_unregister(void); |
104 | #else | |
9f8868ff | 105 | # define xfs_sysctl_register() (0) |
1da177e4 LT |
106 | # define xfs_sysctl_unregister() do { } while (0) |
107 | #endif /* CONFIG_SYSCTL */ | |
108 | ||
109 | #endif /* __XFS_SYSCTL_H__ */ |