287 lines
10 KiB
C
287 lines
10 KiB
C
/* $NetBSD: lfs_extern.h,v 1.71 2005/09/13 04:13:25 christos Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Konrad E. Schroder <perseant@hhhh.org>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95
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*/
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#ifndef _UFS_LFS_LFS_EXTERN_H_
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#define _UFS_LFS_LFS_EXTERN_H_
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#ifdef _KERNEL
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#include <sys/mallocvar.h>
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MALLOC_DECLARE(M_SEGMENT);
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#endif
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/* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */
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#define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS)
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/*
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* Sysctl values for LFS.
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*/
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#define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */
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#define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */
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#define LFS_DOSTATS 3
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#define LFS_MAXPAGES 4
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#define LFS_FS_PAGETRIP 5
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#define LFS_STATS 6
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#define LFS_DO_RFW 7
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#define LFS_DEBUGLOG 8
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#define LFS_MAXID 9
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#define LFS_NAMES { \
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{ 0, 0 }, \
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{ "flushindir", CTLTYPE_INT }, \
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{ "clean_vnhead", CTLTYPE_INT }, \
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{ "dostats", CTLTYPE_INT }, \
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{ "maxpages", CTLTYPE_INT }, \
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{ "debug", CTLTYPE_NODE }, \
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}
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struct fid;
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struct mount;
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struct nameidata;
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struct proc;
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struct statvfs;
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struct timeval;
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struct inode;
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struct uio;
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struct mbuf;
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struct ufs1_dinode;
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struct buf;
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struct vnode;
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struct dlfs;
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struct lfs;
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struct segment;
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struct ucred;
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struct block_info;
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extern int lfs_allclean_wakeup;
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extern struct pool lfs_inode_pool; /* memory pool for inodes */
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extern struct pool lfs_dinode_pool; /* memory pool for dinodes */
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extern struct pool lfs_inoext_pool; /* memory pool for inode extension */
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extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */
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extern int locked_queue_count;
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extern long locked_queue_bytes;
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extern int lfs_subsys_pages;
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extern int lfs_dirvcount;
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extern struct simplelock lfs_subsys_lock;
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extern int lfs_debug_log_subsys[];
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__BEGIN_DECLS
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/* lfs_alloc.c */
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int lfs_rf_valloc(struct lfs *, ino_t, int, struct proc *, struct vnode **);
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void lfs_vcreate(struct mount *, ino_t, struct vnode *);
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/* lfs_balloc.c */
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void lfs_register_block(struct vnode *, daddr_t);
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void lfs_deregister_block(struct vnode *, daddr_t);
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void lfs_deregister_all(struct vnode *);
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/* lfs_bio.c */
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int lfs_availwait(struct lfs *, int);
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int lfs_bwrite_ext(struct buf *, int);
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int lfs_fits(struct lfs *, int);
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void lfs_flush_fs(struct lfs *, int);
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void lfs_flush(struct lfs *, int, int);
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int lfs_check(struct vnode *, daddr_t, int);
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void lfs_freebuf(struct lfs *, struct buf *);
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struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int);
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void lfs_countlocked(int *, long *, const char *);
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int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int);
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/* lfs_cksum.c */
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u_int32_t cksum(void *, size_t);
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u_int32_t lfs_cksum_part(void *, size_t, u_int32_t);
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#define lfs_cksum_fold(sum) (sum)
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u_int32_t lfs_sb_cksum(struct dlfs *);
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/* lfs_debug.c */
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#ifdef DEBUG
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int lfs_bwrite_log(struct buf *, const char *, int);
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void lfs_dumplog(void);
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void lfs_dump_super(struct lfs *);
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void lfs_dump_dinode(struct ufs1_dinode *);
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void lfs_check_bpp(struct lfs *, struct segment *, char *, int);
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void lfs_check_segsum(struct lfs *, struct segment *, char *, int);
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void lfs_debug_log(int, const char *, ...);
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#endif /* DEBUG */
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/* lfs_inode.c */
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struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *);
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/* lfs_segment.c */
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void lfs_imtime(struct lfs *);
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int lfs_vflush(struct vnode *);
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int lfs_segwrite(struct mount *, int);
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void lfs_writefile(struct lfs *, struct segment *, struct vnode *);
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int lfs_writeinode(struct lfs *, struct segment *, struct inode *);
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int lfs_gatherblock(struct segment *, struct buf *, int *);
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int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *));
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void lfs_update_single(struct lfs *, struct segment *, struct vnode *,
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daddr_t, int32_t, int);
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void lfs_updatemeta(struct segment *);
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int lfs_rewind(struct lfs *, int);
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void lfs_unset_inval_all(struct lfs *);
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int lfs_initseg(struct lfs *);
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int lfs_writeseg(struct lfs *, struct segment *);
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void lfs_writesuper(struct lfs *, daddr_t);
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int lfs_match_data(struct lfs *, struct buf *);
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int lfs_match_indir(struct lfs *, struct buf *);
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int lfs_match_dindir(struct lfs *, struct buf *);
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int lfs_match_tindir(struct lfs *, struct buf *);
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void lfs_callback(struct buf *);
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int lfs_vref(struct vnode *);
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void lfs_vunref(struct vnode *);
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void lfs_vunref_head(struct vnode *);
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/* lfs_subr.c */
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void lfs_setup_resblks(struct lfs *);
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void lfs_pad_check(unsigned char *, int, char *, int);
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void lfs_free_resblks(struct lfs *);
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void *lfs_malloc(struct lfs *, size_t, int);
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void lfs_free(struct lfs *, void *, int);
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int lfs_seglock(struct lfs *, unsigned long);
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void lfs_segunlock(struct lfs *);
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int lfs_writer_enter(struct lfs *, const char *);
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void lfs_writer_leave(struct lfs *);
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/* lfs_syscalls.c */
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int lfs_fastvget(struct mount *, ino_t, daddr_t, struct vnode **, struct ufs1_dinode *);
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struct buf *lfs_fakebuf(struct lfs *, struct vnode *, int, size_t, caddr_t);
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int lfs_do_segclean(struct lfs *, unsigned long);
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void lfs_fakebuf_iodone(struct buf *);
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int lfs_segwait(fsid_t *, struct timeval *);
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int lfs_bmapv(struct proc *, fsid_t *, struct block_info *, int);
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int lfs_markv(struct proc *, fsid_t *, struct block_info *, int);
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/* lfs_vfsops.c */
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void lfs_init(void);
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void lfs_reinit(void);
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void lfs_done(void);
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int lfs_mountroot(void);
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int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct proc *);
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int lfs_unmount(struct mount *, int, struct proc *);
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int lfs_statvfs(struct mount *, struct statvfs *, struct proc *);
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int lfs_sync(struct mount *, int, struct ucred *, struct proc *);
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int lfs_vget(struct mount *, ino_t, struct vnode **);
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int lfs_fhtovp(struct mount *, struct fid *, struct vnode **);
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int lfs_vptofh(struct vnode *, struct fid *);
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void lfs_vinit(struct mount *, struct vnode **);
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int lfs_resize_fs(struct lfs *, int);
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/* lfs_vnops.c */
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void lfs_mark_vnode(struct vnode *);
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void lfs_unmark_vnode(struct vnode *);
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int lfs_gop_alloc(struct vnode *, off_t, off_t, int, struct ucred *);
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void lfs_gop_size(struct vnode *, off_t, off_t *, int);
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int lfs_putpages_ext(void *, int);
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int lfs_gatherpages(struct vnode *);
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int lfs_balloc (void *);
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int lfs_valloc (void *);
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int lfs_vfree (void *);
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int lfs_bwrite (void *);
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int lfs_update (void *);
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int lfs_truncate (void *);
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int lfs_blkatoff (void *);
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int lfs_fsync (void *);
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int lfs_symlink (void *);
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int lfs_mknod (void *);
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int lfs_create (void *);
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int lfs_mkdir (void *);
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int lfs_read (void *);
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int lfs_remove (void *);
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int lfs_rmdir (void *);
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int lfs_link (void *);
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int lfs_mmap (void *);
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int lfs_rename (void *);
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int lfs_getattr (void *);
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int lfs_setattr (void *);
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int lfs_close (void *);
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int lfsspec_close(void *);
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int lfsfifo_close(void *);
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int lfs_fcntl (void *);
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int lfs_inactive (void *);
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int lfs_reclaim (void *);
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int lfs_strategy (void *);
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int lfs_write (void *);
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int lfs_getpages (void *);
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int lfs_putpages (void *);
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#ifdef SYSCTL_SETUP_PROTO
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SYSCTL_SETUP_PROTO(sysctl_vfs_lfs_setup);
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#endif /* SYSCTL_SETUP_PROTO */
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__END_DECLS
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extern int lfs_mount_type;
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extern int (**lfs_vnodeop_p)(void *);
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extern int (**lfs_specop_p)(void *);
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extern int (**lfs_fifoop_p)(void *);
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extern const struct genfs_ops lfs_genfsops;
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#endif /* !_UFS_LFS_LFS_EXTERN_H_ */
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