[linux-block.git] / fs / xfs / xfs_sysctl.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2001-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#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 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_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
	xfs_sysctl_val_t fstrm_timer;	/* Filestream dir-AG assoc'n timeout. */
	xfs_sysctl_val_t eofb_timer;	/* Interval between eofb scan wakeups */
	xfs_sysctl_val_t cowb_timer;	/* Interval between cowb scan wakeups */
} 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,
	XFS_INHERIT_NODFRG = 21,
	XFS_FILESTREAM_TIMER = 22,
};

extern xfs_param_t	xfs_params;

struct xfs_globals {
#ifdef DEBUG
	int	pwork_threads;		/* parallel workqueue threads */
#endif
	int	log_recovery_delay;	/* log recovery delay (secs) */
	int	mount_delay;		/* mount setup delay (secs) */
	bool	bug_on_assert;		/* BUG() the kernel on assert failure */
	bool	always_cow;		/* use COW fork for all overwrites */
};
extern struct xfs_globals	xfs_globals;

#ifdef CONFIG_SYSCTL
extern int xfs_sysctl_register(void);
extern void xfs_sysctl_unregister(void);
#else
# define xfs_sysctl_register()		(0)
# define xfs_sysctl_unregister()	do { } while (0)
#endif /* CONFIG_SYSCTL */

#endif /* __XFS_SYSCTL_H__ */
Commit	Line	Data
0b61f8a4	1	// SPDX-License-Identifier: GPL-2.0
1da177e4	2	/*
7b718769 NS	3	* Copyright (c) 2001-2005 Silicon Graphics, Inc.
7b718769 NS	4	* All Rights Reserved.
1da177e4	5	*/
1da177e4 LT	6	#ifndef __XFS_SYSCTL_H__
	7	#define __XFS_SYSCTL_H__
	8
	9	#include <linux/sysctl.h>
	10
	11	/*
	12	* Tunable xfs parameters
	13	*/
	14
	15	typedef struct xfs_sysctl_val {
	16	int min;
	17	int val;
	18	int max;
	19	} xfs_sysctl_val_t;
	20
	21	typedef struct xfs_param {
1da177e4 LT	22	xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is
	23	* not a member of parent dir GID. */
	24	xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
	25	xfs_sysctl_val_t panic_mask; /* bitmask to cause panic on errors. */
	26	xfs_sysctl_val_t error_level; /* Degree of reporting for problems */
	27	xfs_sysctl_val_t syncd_timer; /* Interval between xfssyncd wakeups */
	28	xfs_sysctl_val_t stats_clear; /* Reset all XFS statistics to zero. */
	29	xfs_sysctl_val_t inherit_sync; /* Inherit the "sync" inode flag. */
	30	xfs_sysctl_val_t inherit_nodump;/* Inherit the "nodump" inode flag. */
	31	xfs_sysctl_val_t inherit_noatim;/* Inherit the "noatime" inode flag. */
	32	xfs_sysctl_val_t xfs_buf_timer; /* Interval between xfsbufd wakeups. */
	33	xfs_sysctl_val_t xfs_buf_age; /* Metadata buffer age before flush. */
	34	xfs_sysctl_val_t inherit_nosym; /* Inherit the "nosymlinks" flag. */
	35	xfs_sysctl_val_t rotorstep; /* inode32 AG rotoring control knob */
d3446eac	36	xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */
2a82b8be	37	xfs_sysctl_val_t fstrm_timer; /* Filestream dir-AG assoc'n timeout. */
579b62fa	38	xfs_sysctl_val_t eofb_timer; /* Interval between eofb scan wakeups */
83104d44	39	xfs_sysctl_val_t cowb_timer; /* Interval between cowb scan wakeups */
1da177e4 LT	40	} xfs_param_t;
	41
	42	/*
	43	* xfs_error_level:
	44	*
	45	* How much error reporting will be done when internal problems are
	46	* encountered. These problems normally return an EFSCORRUPTED to their
	47	* caller, with no other information reported.
	48	*
	49	* 0 No error reports
	50	* 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown
	51	* 5 Report all EFSCORRUPTED errors (all of the above errors, plus any
	52	* additional errors that are known to not cause shutdowns)
	53	*
	54	* xfs_panic_mask bit 0x8 turns the error reports into panics
	55	*/
	56
	57	enum {
	58	/* XFS_REFCACHE_SIZE = 1 */
	59	/* XFS_REFCACHE_PURGE = 2 */
e0b8e8b6	60	/* XFS_RESTRICT_CHOWN = 3 */
1da177e4 LT	61	XFS_SGID_INHERIT = 4,
	62	XFS_SYMLINK_MODE = 5,
	63	XFS_PANIC_MASK = 6,
	64	XFS_ERRLEVEL = 7,
	65	XFS_SYNCD_TIMER = 8,
	66	/* XFS_PROBE_DMAPI = 9 */
	67	/* XFS_PROBE_IOOPS = 10 */
	68	/* XFS_PROBE_QUOTA = 11 */
	69	XFS_STATS_CLEAR = 12,
	70	XFS_INHERIT_SYNC = 13,
	71	XFS_INHERIT_NODUMP = 14,
	72	XFS_INHERIT_NOATIME = 15,
	73	XFS_BUF_TIMER = 16,
	74	XFS_BUF_AGE = 17,
	75	/* XFS_IO_BYPASS = 18 */
	76	XFS_INHERIT_NOSYM = 19,
	77	XFS_ROTORSTEP = 20,
d3446eac	78	XFS_INHERIT_NODFRG = 21,
2a82b8be	79	XFS_FILESTREAM_TIMER = 22,
1da177e4 LT	80	};
	81
	82	extern xfs_param_t xfs_params;
	83
2e227178	84	struct xfs_globals {
40786717 DW	85	#ifdef DEBUG
	86	int pwork_threads; /* parallel workqueue threads */
	87	#endif
2e227178	88	int log_recovery_delay; /* log recovery delay (secs) */
dae5cd81	89	int mount_delay; /* mount setup delay (secs) */
ccdab3d6	90	bool bug_on_assert; /* BUG() the kernel on assert failure */
66ae56a5	91	bool always_cow; /* use COW fork for all overwrites */
2e227178 BF	92	};
	93	extern struct xfs_globals xfs_globals;
	94
1da177e4	95	#ifdef CONFIG_SYSCTL
9f8868ff	96	extern int xfs_sysctl_register(void);
1da177e4 LT	97	extern void xfs_sysctl_unregister(void);
1da177e4 LT	98	#else
9f8868ff	99	# define xfs_sysctl_register() (0)
1da177e4 LT	100	# define xfs_sysctl_unregister() do { } while (0)
	101	#endif /* CONFIG_SYSCTL */
	102
	103	#endif /* __XFS_SYSCTL_H__ */