100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2001-2005 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_SYSCTL_H__
|
|
#define __XFS_SYSCTL_H__
|
|
|
|
#include <linux/sysctl.h>
|
|
|
|
/*
|
|
* Tunable xfs parameters
|
|
*/
|
|
|
|
typedef struct xfs_sysctl_val {
|
|
int min;
|
|
int val;
|
|
int max;
|
|
} xfs_sysctl_val_t;
|
|
|
|
typedef struct xfs_param {
|
|
xfs_sysctl_val_t restrict_chown;/* Root/non-root can give away files.*/
|
|
xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is
|
|
* not a member of parent dir GID. */
|
|
xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
|
|
xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
|
|
xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
|
|
xfs_sysctl_val_t syncd_timer; /* Interval between xfssyncd wakeups */
|
|
xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
|
|
xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
|
|
xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
|
|
xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
|
|
xfs_sysctl_val_t xfs_buf_timer; /* Interval between xfsbufd wakeups. */
|
|
xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
|
|
xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
|
|
xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
|
|
} xfs_param_t;
|
|
|
|
/*
|
|
* xfs_error_level:
|
|
*
|
|
* How much error reporting will be done when internal problems are
|
|
* encountered. These problems normally return an EFSCORRUPTED to their
|
|
* caller, with no other information reported.
|
|
*
|
|
* 0 No error reports
|
|
* 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
|
|
* 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
|
|
* additional errors that are known to not cause shutdowns)
|
|
*
|
|
* xfs_panic_mask bit 0x8 turns the error reports into panics
|
|
*/
|
|
|
|
enum {
|
|
/* XFS_REFCACHE_SIZE = 1 */
|
|
/* XFS_REFCACHE_PURGE = 2 */
|
|
XFS_RESTRICT_CHOWN = 3,
|
|
XFS_SGID_INHERIT = 4,
|
|
XFS_SYMLINK_MODE = 5,
|
|
XFS_PANIC_MASK = 6,
|
|
XFS_ERRLEVEL = 7,
|
|
XFS_SYNCD_TIMER = 8,
|
|
/* XFS_PROBE_DMAPI = 9 */
|
|
/* XFS_PROBE_IOOPS = 10 */
|
|
/* XFS_PROBE_QUOTA = 11 */
|
|
XFS_STATS_CLEAR = 12,
|
|
XFS_INHERIT_SYNC = 13,
|
|
XFS_INHERIT_NODUMP = 14,
|
|
XFS_INHERIT_NOATIME = 15,
|
|
XFS_BUF_TIMER = 16,
|
|
XFS_BUF_AGE = 17,
|
|
/* XFS_IO_BYPASS = 18 */
|
|
XFS_INHERIT_NOSYM = 19,
|
|
XFS_ROTORSTEP = 20,
|
|
};
|
|
|
|
extern xfs_param_t xfs_params;
|
|
|
|
#ifdef CONFIG_SYSCTL
|
|
extern void xfs_sysctl_register(void);
|
|
extern void xfs_sysctl_unregister(void);
|
|
#else
|
|
# define xfs_sysctl_register() do { } while (0)
|
|
# define xfs_sysctl_unregister() do { } while (0)
|
|
#endif /* CONFIG_SYSCTL */
|
|
|
|
#endif /* __XFS_SYSCTL_H__ */
|