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      1 /* $NetBSD: lfs_user.h,v 1.14 2015/09/01 06:15:16 dholland 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  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <stdarg.h>
     32 
     33 struct lfs;
     34 /* XXX do these really need to be here? */
     35 union segsum;
     36 union finfo;
     37 
     38 /*
     39  * In the fsck code we don't need lfs_unlockvp, but we don't have a mount
     40  * structure to give us the devvp.  Overload the unlockvp with devvp.
     41  */
     42 #define lfs_devvp lfs_unlockvp
     43 
     44 /*
     45  * This is outside of the kernel, so no locking primitives available.
     46  */
     47 #undef simple_lock
     48 #undef simple_unlock
     49 
     50 #define simple_lock(arg)	/* empty */
     51 #define simple_unlock(arg)	/* empty */
     52 
     53 #define mutex_enter(mutex)	/* empty */
     54 #define mutex_exit(mutex)	/* empty */
     55 
     56 /*
     57  * Outside of the kernel use standard assertions
     58  */
     59 #define KASSERT assert
     60 
     61 /*
     62  * Structure used to pass around logical block paths generated by
     63  * ulfs_getlbns and used by truncate and bmap code.
     64  */
     65 struct indir {
     66 	daddr_t in_lbn;		/* Logical block number. */
     67 	int in_off;		/* Offset in buffer. */
     68 	int in_exists;		/* Flag if the block exists. */
     69 };
     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)
     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, 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 *, union segsum *, daddr_t, int, struct uvnode *, void (*)(daddr_t, union finfo *));
     88 daddr_t try_verify(struct lfs *, struct uvnode *, daddr_t, int);
     89 union lfs_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