119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
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/*
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* Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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* Mountain View, CA 94043, or:
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*
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* http://www.sgi.com
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*
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* For further information regarding this notice, see:
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*
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* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
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*/
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#ifndef __XFS_SYSCTL_H__
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#define __XFS_SYSCTL_H__
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/*
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* Tunable xfs parameters
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*/
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typedef struct xfs_sysctl_val {
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int min;
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int val;
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int max;
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} xfs_sysctl_val_t;
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typedef struct xfs_param {
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xfs_sysctl_val_t refcache_size; /* Size of NFS reference cache. */
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xfs_sysctl_val_t refcache_purge;/* # of entries to purge each time. */
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xfs_sysctl_val_t restrict_chown;/* Root/non-root can give away files.*/
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xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID bit if process' GID
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* is not a member of the parent dir
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* GID */
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xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
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xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
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xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
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xfs_sysctl_val_t sync_interval; /* time between sync calls */
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xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
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xfs_sysctl_val_t probe_dmapi; /* probe for DMAPI module on mount. */
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xfs_sysctl_val_t probe_ioops; /* probe for an IO module on mount. */
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xfs_sysctl_val_t probe_quota; /* probe for quota module on mount. */
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xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
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xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
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xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
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xfs_sysctl_val_t flush_interval;/* interval between runs of the
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* delwri flush daemon. */
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xfs_sysctl_val_t age_buffer; /* time for buffer to age before
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* we flush it. */
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xfs_sysctl_val_t io_bypass; /* toggle for directio io bypass */
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} xfs_param_t;
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/*
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* xfs_error_level:
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*
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* How much error reporting will be done when internal problems are
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* encountered. These problems normally return an EFSCORRUPTED to their
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* caller, with no other information reported.
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*
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* 0 No error reports
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* 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
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* 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
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* additional errors that are known to not cause shutdowns)
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*
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* xfs_panic_mask bit 0x8 turns the error reports into panics
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*/
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enum {
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XFS_REFCACHE_SIZE = 1,
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XFS_REFCACHE_PURGE = 2,
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XFS_RESTRICT_CHOWN = 3,
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XFS_SGID_INHERIT = 4,
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XFS_SYMLINK_MODE = 5,
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XFS_PANIC_MASK = 6,
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XFS_ERRLEVEL = 7,
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XFS_SYNC_INTERVAL = 8,
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XFS_PROBE_DMAPI = 9,
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XFS_PROBE_IOOPS = 10,
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XFS_PROBE_QUOTA = 11,
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XFS_STATS_CLEAR = 12,
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XFS_INHERIT_SYNC = 13,
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XFS_INHERIT_NODUMP = 14,
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XFS_INHERIT_NOATIME = 15,
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XFS_FLUSH_INTERVAL = 16,
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XFS_AGE_BUFFER = 17,
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XFS_IO_BYPASS = 18,
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};
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extern xfs_param_t xfs_params;
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#ifdef CONFIG_SYSCTL
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extern void xfs_sysctl_register(void);
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extern void xfs_sysctl_unregister(void);
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#else
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# define xfs_sysctl_register() do { } while (0)
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# define xfs_sysctl_unregister() do { } while (0)
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#endif /* CONFIG_SYSCTL */
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#endif /* __XFS_SYSCTL_H__ */
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