diff options
Diffstat (limited to 'fs/xfs/xfs_sysctl.h')
-rw-r--r-- | fs/xfs/xfs_sysctl.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/fs/xfs/xfs_sysctl.h b/fs/xfs/xfs_sysctl.h new file mode 100644 index 000000000000..b9937d450f8e --- /dev/null +++ b/fs/xfs/xfs_sysctl.h | |||
@@ -0,0 +1,102 @@ | |||
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 | |||
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 { | ||
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_param_t; | ||
51 | |||
52 | /* | ||
53 | * xfs_error_level: | ||
54 | * | ||
55 | * How much error reporting will be done when internal problems are | ||
56 | * encountered. These problems normally return an EFSCORRUPTED to their | ||
57 | * caller, with no other information reported. | ||
58 | * | ||
59 | * 0 No error reports | ||
60 | * 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown | ||
61 | * 5 Report all EFSCORRUPTED errors (all of the above errors, plus any | ||
62 | * additional errors that are known to not cause shutdowns) | ||
63 | * | ||
64 | * xfs_panic_mask bit 0x8 turns the error reports into panics | ||
65 | */ | ||
66 | |||
67 | enum { | ||
68 | /* XFS_REFCACHE_SIZE = 1 */ | ||
69 | /* XFS_REFCACHE_PURGE = 2 */ | ||
70 | /* XFS_RESTRICT_CHOWN = 3 */ | ||
71 | XFS_SGID_INHERIT = 4, | ||
72 | XFS_SYMLINK_MODE = 5, | ||
73 | XFS_PANIC_MASK = 6, | ||
74 | XFS_ERRLEVEL = 7, | ||
75 | XFS_SYNCD_TIMER = 8, | ||
76 | /* XFS_PROBE_DMAPI = 9 */ | ||
77 | /* XFS_PROBE_IOOPS = 10 */ | ||
78 | /* XFS_PROBE_QUOTA = 11 */ | ||
79 | XFS_STATS_CLEAR = 12, | ||
80 | XFS_INHERIT_SYNC = 13, | ||
81 | XFS_INHERIT_NODUMP = 14, | ||
82 | XFS_INHERIT_NOATIME = 15, | ||
83 | XFS_BUF_TIMER = 16, | ||
84 | XFS_BUF_AGE = 17, | ||
85 | /* XFS_IO_BYPASS = 18 */ | ||
86 | XFS_INHERIT_NOSYM = 19, | ||
87 | XFS_ROTORSTEP = 20, | ||
88 | XFS_INHERIT_NODFRG = 21, | ||
89 | XFS_FILESTREAM_TIMER = 22, | ||
90 | }; | ||
91 | |||
92 | extern xfs_param_t xfs_params; | ||
93 | |||
94 | #ifdef CONFIG_SYSCTL | ||
95 | extern int xfs_sysctl_register(void); | ||
96 | extern void xfs_sysctl_unregister(void); | ||
97 | #else | ||
98 | # define xfs_sysctl_register() (0) | ||
99 | # define xfs_sysctl_unregister() do { } while (0) | ||
100 | #endif /* CONFIG_SYSCTL */ | ||
101 | |||
102 | #endif /* __XFS_SYSCTL_H__ */ | ||