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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /* * 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 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_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; #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__ */ |