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lfs_user.h revision 1.2 
      1 /* $NetBSD: lfs_user.h,v 1.2 2006/07/18 23:37:13 perseant Exp $ */
      2 /*-
      3  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Konrad E. Schroder <perseant (at) hhhh.org>.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the NetBSD
     20  *	Foundation, Inc. and its contributors.
     21  * 4. Neither the name of The NetBSD Foundation nor the names of its
     22  *    contributors may be used to endorse or promote products derived
     23  *    from this software without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #include <stdarg.h>
     39 
     40 struct lfs;
     41 struct segsum;
     42 struct finfo;
     43 
     44 /*
     45  * In the fsck code we don't need lfs_unlockvp, but we don't have a mount
     46  * structure to give us the devvp.  Overload the unlockvp with devvp.
     47  */
     48 #define lfs_devvp lfs_unlockvp
     49 
     50 /*
     51  * This is outside of the kernel, so no locking primitives available.
     52  */
     53 #undef simple_lock
     54 #undef simple_unlock
     55 
     56 #define simple_lock(arg)	/* empty */
     57 #define simple_unlock(arg)	/* empty */
     58 
     59 /*
     60  * Structure used to pass around logical block paths generated by
     61  * ufs_getlbns and used by truncate and bmap code.
     62  */
     63 struct indir {
     64 	daddr_t in_lbn;		/* Logical block number. */
     65 	int in_off;		/* Offset in buffer. */
     66 	int in_exists;		/* Flag if the block exists. */
     67 };
     68 
     69 typedef int32_t ufs_daddr_t;
     70 
     71 /* Convert between inode pointers and vnode pointers. */
     72 #define	VTOI(vp)	((struct inode *)(vp)->v_data)
     73 #define VTOD(vp)	(VTOI(vp)->i_din.ffs1_din)
     74 
     75 #define sbdirty()	++fsdirty
     76 
     77 extern int fsdirty;
     78 extern struct uvnodelst vnodelist;
     79 
     80 int lfs_vop_strategy(struct ubuf *);
     81 int lfs_vop_bwrite(struct ubuf *);
     82 int lfs_vop_bmap(struct uvnode *, daddr_t, daddr_t *);
     83 
     84 struct uvnode *lfs_raw_vget(struct lfs *, ino_t, int, ufs_daddr_t);
     85 struct lfs *lfs_init(int, daddr_t, daddr_t, int, int);
     86 struct lfs *lfs_verify(struct lfs *, struct lfs *, struct uvnode *, int);
     87 int check_summary(struct lfs *, struct segsum *, ufs_daddr_t, int, struct uvnode *, void (*)(ufs_daddr_t, struct finfo *));
     88 ufs_daddr_t try_verify(struct lfs *, struct uvnode *, ufs_daddr_t, int);
     89 struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct ubuf *);
     90 void call_panic(const char *, ...);
     91 void my_vpanic(int, const char *, va_list);
     92 int extend_ifile(struct lfs *);
     93 struct uvnode *lfs_valloc(struct lfs *, ino_t);
     94 int lfs_balloc(struct uvnode *, off_t, int, struct ubuf **);
     95