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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (c) 2001-2005 Silicon Graphics, Inc.4 * All Rights Reserved.5 */6#ifndef __XFS_SYSCTL_H__7#define __XFS_SYSCTL_H__8 9#include <linux/sysctl.h>10 11/*12 * Tunable xfs parameters13 */14 15typedef struct xfs_sysctl_val {16 int min;17 int val;18 int max;19} xfs_sysctl_val_t;20 21typedef struct xfs_param {22 xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is23 * 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 */36 xfs_sysctl_val_t inherit_nodfrg;/* Inherit the "nodefrag" inode flag. */37 xfs_sysctl_val_t fstrm_timer; /* Filestream dir-AG assoc'n timeout. */38 xfs_sysctl_val_t blockgc_timer; /* Interval between blockgc scans */39} xfs_param_t;40 41/*42 * xfs_error_level:43 *44 * How much error reporting will be done when internal problems are45 * encountered. These problems normally return an EFSCORRUPTED to their46 * caller, with no other information reported.47 *48 * 0 No error reports49 * 1 Report EFSCORRUPTED errors that will cause a filesystem shutdown50 * 5 Report all EFSCORRUPTED errors (all of the above errors, plus any51 * additional errors that are known to not cause shutdowns)52 *53 * xfs_panic_mask bit 0x8 turns the error reports into panics54 */55 56enum {57 /* XFS_REFCACHE_SIZE = 1 */58 /* XFS_REFCACHE_PURGE = 2 */59 /* XFS_RESTRICT_CHOWN = 3 */60 XFS_SGID_INHERIT = 4,61 XFS_SYMLINK_MODE = 5,62 XFS_PANIC_MASK = 6,63 XFS_ERRLEVEL = 7,64 XFS_SYNCD_TIMER = 8,65 /* XFS_PROBE_DMAPI = 9 */66 /* XFS_PROBE_IOOPS = 10 */67 /* XFS_PROBE_QUOTA = 11 */68 XFS_STATS_CLEAR = 12,69 XFS_INHERIT_SYNC = 13,70 XFS_INHERIT_NODUMP = 14,71 XFS_INHERIT_NOATIME = 15,72 XFS_BUF_TIMER = 16,73 XFS_BUF_AGE = 17,74 /* XFS_IO_BYPASS = 18 */75 XFS_INHERIT_NOSYM = 19,76 XFS_ROTORSTEP = 20,77 XFS_INHERIT_NODFRG = 21,78 XFS_FILESTREAM_TIMER = 22,79};80 81extern xfs_param_t xfs_params;82 83struct xfs_globals {84#ifdef DEBUG85 int pwork_threads; /* parallel workqueue threads */86 bool larp; /* log attribute replay */87#endif88 int bload_leaf_slack; /* btree bulk load leaf slack */89 int bload_node_slack; /* btree bulk load node slack */90 int log_recovery_delay; /* log recovery delay (secs) */91 int mount_delay; /* mount setup delay (secs) */92 bool bug_on_assert; /* BUG() the kernel on assert failure */93 bool always_cow; /* use COW fork for all overwrites */94};95extern struct xfs_globals xfs_globals;96 97#ifdef CONFIG_SYSCTL98extern int xfs_sysctl_register(void);99extern void xfs_sysctl_unregister(void);100#else101# define xfs_sysctl_register() (0)102# define xfs_sysctl_unregister() do { } while (0)103#endif /* CONFIG_SYSCTL */104 105#endif /* __XFS_SYSCTL_H__ */106