Annotation of sys/ufs/ffs/ffs_extern.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ffs_extern.h,v 1.32 2007/06/01 20:23:25 pedro Exp $ */
! 2: /* $NetBSD: ffs_extern.h,v 1.4 1996/02/09 22:22:22 christos Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1991, 1993, 1994
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94
! 33: */
! 34:
! 35: #define FFS_CLUSTERREAD 1 /* cluster reading enabled */
! 36: #define FFS_CLUSTERWRITE 2 /* cluster writing enabled */
! 37: #define FFS_REALLOCBLKS 3 /* block reallocation enabled */
! 38: #define FFS_ASYNCFREE 4 /* asynchronous block freeing enabled */
! 39: #define FFS_MAX_SOFTDEPS 5 /* maximum structs before slowdown */
! 40: #define FFS_SD_TICKDELAY 6 /* ticks to pause during slowdown */
! 41: #define FFS_SD_WORKLIST_PUSH 7 /* # of worklist cleanups */
! 42: #define FFS_SD_BLK_LIMIT_PUSH 8 /* # of times block limit neared */
! 43: #define FFS_SD_INO_LIMIT_PUSH 9 /* # of times inode limit neared */
! 44: #define FFS_SD_BLK_LIMIT_HIT 10 /* # of times block slowdown imposed */
! 45: #define FFS_SD_INO_LIMIT_HIT 11 /* # of times inode slowdown imposed */
! 46: #define FFS_SD_SYNC_LIMIT_HIT 12 /* # of synchronous slowdowns imposed */
! 47: #define FFS_SD_INDIR_BLK_PTRS 13 /* bufs redirtied as indir ptrs not written */
! 48: #define FFS_SD_INODE_BITMAP 14 /* bufs redirtied as inode bitmap not written */
! 49: #define FFS_SD_DIRECT_BLK_PTRS 15 /* bufs redirtied as direct ptrs not written */
! 50: #define FFS_SD_DIR_ENTRY 16 /* bufs redirtied as dir entry cannot write */
! 51: #define FFS_DIRHASH_DIRSIZE 17 /* min directory size, in bytes */
! 52: #define FFS_DIRHASH_MAXMEM 18 /* max kvm to use, in bytes */
! 53: #define FFS_DIRHASH_MEM 19 /* current mem usage, in bytes */
! 54: #define FFS_MAXID 20 /* number of valid ffs ids */
! 55:
! 56: #define FFS_NAMES { \
! 57: { 0, 0 }, \
! 58: { "doclusterread", CTLTYPE_INT }, \
! 59: { "doclusterwrite", CTLTYPE_INT }, \
! 60: { "doreallocblks", CTLTYPE_INT }, \
! 61: { "doasyncfree", CTLTYPE_INT }, \
! 62: { "max_softdeps", CTLTYPE_INT }, \
! 63: { "sd_tickdelay", CTLTYPE_INT }, \
! 64: { "sd_worklist_push", CTLTYPE_INT }, \
! 65: { "sd_blk_limit_push", CTLTYPE_INT }, \
! 66: { "sd_ino_limit_push", CTLTYPE_INT }, \
! 67: { "sd_blk_limit_hit", CTLTYPE_INT }, \
! 68: { "sd_ino_limit_hit", CTLTYPE_INT }, \
! 69: { "sd_sync_limit_hit", CTLTYPE_INT }, \
! 70: { "sd_indir_blk_ptrs", CTLTYPE_INT }, \
! 71: { "sd_inode_bitmap", CTLTYPE_INT }, \
! 72: { "sd_direct_blk_ptrs", CTLTYPE_INT }, \
! 73: { "sd_dir_entry", CTLTYPE_INT }, \
! 74: { "dirhash_dirsize", CTLTYPE_INT }, \
! 75: { "dirhash_maxmem", CTLTYPE_INT }, \
! 76: { "dirhash_mem", CTLTYPE_INT }, \
! 77: }
! 78:
! 79: struct buf;
! 80: struct fid;
! 81: struct fs;
! 82: struct inode;
! 83: struct mount;
! 84: struct nameidata;
! 85: struct proc;
! 86: struct statfs;
! 87: struct timeval;
! 88: struct ucred;
! 89: struct ufsmount;
! 90: struct vfsconf;
! 91: struct uio;
! 92: struct vnode;
! 93: struct mbuf;
! 94: struct cg;
! 95: struct vop_vfree_args;
! 96:
! 97: __BEGIN_DECLS
! 98:
! 99: /* ffs_alloc.c */
! 100: int ffs_alloc(struct inode *, daddr_t, daddr_t , int, struct ucred *,
! 101: daddr_t *);
! 102: int ffs_realloccg(struct inode *, daddr_t, daddr_t, int, int ,
! 103: struct ucred *, struct buf **, daddr_t *);
! 104: int ffs_reallocblks(void *);
! 105: int ffs_inode_alloc(struct inode *, mode_t, struct ucred *, struct vnode **);
! 106: int ffs_inode_free(struct inode *, ino_t, mode_t);
! 107: int ffs_freefile(struct inode *, ino_t, mode_t);
! 108:
! 109: int32_t ffs1_blkpref(struct inode *, daddr_t, int, int32_t *);
! 110: #ifdef FFS2
! 111: int64_t ffs2_blkpref(struct inode *, daddr_t, int, int64_t *);
! 112: #endif
! 113: void ffs_blkfree(struct inode *, daddr64_t, long);
! 114: void ffs_clusteracct(struct fs *, struct cg *, daddr_t, int);
! 115:
! 116: /* ffs_balloc.c */
! 117: int ffs_balloc(struct inode *, off_t, int, struct ucred *, int, struct buf **);
! 118:
! 119: /* ffs_inode.c */
! 120: int ffs_init(struct vfsconf *);
! 121: int ffs_update(struct inode *, struct timespec *, struct timespec *, int);
! 122: int ffs_truncate(struct inode *, off_t, int, struct ucred *);
! 123:
! 124: /* ffs_subr.c */
! 125: int ffs_bufatoff(struct inode *, off_t, char **, struct buf **);
! 126: void ffs_fragacct(struct fs *, int, int32_t[], int);
! 127: #ifdef DIAGNOSTIC
! 128: void ffs_checkoverlap(struct buf *, struct inode *);
! 129: #endif
! 130: int ffs_isfreeblock(struct fs *, unsigned char *, daddr_t);
! 131: int ffs_isblock(struct fs *, unsigned char *, daddr_t);
! 132: void ffs_clrblock(struct fs *, u_char *, daddr_t);
! 133: void ffs_setblock(struct fs *, unsigned char *, daddr_t);
! 134:
! 135: /* ffs_vfsops.c */
! 136: int ffs_mountroot(void);
! 137: int ffs_mount(struct mount *, const char *, void *, struct nameidata *,
! 138: struct proc *);
! 139: int ffs_reload(struct mount *, struct ucred *, struct proc *);
! 140: int ffs_mountfs(struct vnode *, struct mount *, struct proc *);
! 141: int ffs_oldfscompat(struct fs *);
! 142: int ffs_unmount(struct mount *, int, struct proc *);
! 143: int ffs_flushfiles(struct mount *, int, struct proc *);
! 144: int ffs_statfs(struct mount *, struct statfs *, struct proc *);
! 145: int ffs_sync(struct mount *, int, struct ucred *, struct proc *);
! 146: int ffs_vget(struct mount *, ino_t, struct vnode **);
! 147: int ffs_fhtovp(struct mount *, struct fid *, struct vnode **);
! 148: int ffs_vptofh(struct vnode *, struct fid *);
! 149: int ffs_sysctl(int *, u_int, void *, size_t *, void *, size_t,
! 150: struct proc *);
! 151: int ffs_sbupdate(struct ufsmount *, int);
! 152: int ffs_cgupdate(struct ufsmount *, int);
! 153:
! 154: /* ffs_vnops.c */
! 155: int ffs_read(void *);
! 156: int ffs_write(void *);
! 157: int ffs_fsync(void *);
! 158: int ffs_reclaim(void *);
! 159: int ffsfifo_reclaim(void *);
! 160:
! 161: /*
! 162: * Soft dependency function prototypes.
! 163: */
! 164:
! 165: struct vop_vfree_args;
! 166: struct vop_fsync_args;
! 167:
! 168: void softdep_initialize(void);
! 169: int softdep_process_worklist(struct mount *);
! 170: int softdep_mount(struct vnode *, struct mount *, struct fs *,
! 171: struct ucred *);
! 172: int softdep_flushworklist(struct mount *, int *, struct proc *);
! 173: int softdep_flushfiles(struct mount *, int, struct proc *);
! 174: void softdep_update_inodeblock(struct inode *, struct buf *, int);
! 175: void softdep_load_inodeblock(struct inode *);
! 176: void softdep_freefile(struct vnode *, ino_t, mode_t);
! 177: void softdep_setup_freeblocks(struct inode *, off_t);
! 178: void softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
! 179: void softdep_setup_blkmapdep(struct buf *, struct fs *, daddr_t);
! 180: void softdep_setup_allocdirect(struct inode *, daddr64_t, daddr_t,
! 181: daddr_t, long, long, struct buf *);
! 182: void softdep_setup_allocindir_meta(struct buf *, struct inode *,
! 183: struct buf *, int, daddr_t);
! 184: void softdep_setup_allocindir_page(struct inode *, daddr64_t,
! 185: struct buf *, int, daddr_t, daddr_t, struct buf *);
! 186: void softdep_fsync_mountdev(struct vnode *, int);
! 187: int softdep_sync_metadata(struct vop_fsync_args *);
! 188: int softdep_fsync(struct vnode *);
! 189: __END_DECLS
! 190:
! 191: extern int (**ffs_vnodeop_p)(void *);
! 192: extern int (**ffs_specop_p)(void *);
! 193: #ifdef FIFO
! 194: extern int (**ffs_fifoop_p)(void *);
! 195: #define FFS_FIFOOPS ffs_fifoop_p
! 196: #else
! 197: #define FFS_FIFOOPS NULL
! 198: #endif
! 199:
! 200: extern struct pool ffs_ino_pool; /* memory pool for inodes */
! 201: extern struct pool ffs_dinode1_pool; /* memory pool for UFS1 dinodes */
! 202: #ifdef FFS2
! 203: extern struct pool ffs_dinode2_pool; /* memory pool for UFS2 dinodes */
! 204: #endif
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