freebsd-dev/sys/gnu/fs/xfs/FreeBSD/xfs_sysctl.h
Craig Rodrigues 331b6cc0ea Sync XFS for FreeBSD tree with newer changes from SGI XFS for Linux tree.
Improve support for writing to XFS partitions.

Work done by:	Russell Cattelan <cattelan at xfs dot org>
2006-06-09 06:04:06 +00:00

103 lines
3.5 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__
/*
* 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 refcache_size; /* Size of NFS reference cache. */
xfs_sysctl_val_t refcache_purge;/* # of entries to purge each time. */
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 probe_dmapi; /* probe for DMAPI module on mount. */
xfs_sysctl_val_t probe_ioops; /* probe for an IO module on mount. */
xfs_sysctl_val_t probe_quota; /* probe for quota module on mount. */
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__ */