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freebsd-dev/sys/gnu/fs/ext2fs/ext2_extern.h

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Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
/*
* modified for EXT2FS support in Lites 1.1
*
* Aug 1995, Godmar Back (gback@cs.utah.edu)
* University of Utah, Department of Computer Science
*/
/*-
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94
Support filesystems with the not-so-new "sparse_superblocks" feature. When this feature is enabled, mke2fs doesn't necessarily allocate a super block and its associated descriptor blocks for every group. The (non-)allocations are reflected in the block bitmap. Since the filesystem code doesn't write to these blocks except for the first superblock, all it has to do to support them is to not count them in ext2_statfs() and not attempt to check them at mount time in ext2_check_blocks_bitmap() (the check has never been enabled in FreeBSD anyway).
2000-11-03 16:41:48 +00:00
* $FreeBSD$
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
*/
Removed bogus _BEGIN_DECLS/_END_DECLS. Removed unused struct tag declarations in cloned code. Added or cleaned up idempotency ifdefs.
1996-05-01 02:16:17 +00:00
#ifndef _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
#define _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
struct ext2_inode;
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
struct indir;
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
struct inode;
struct mount;
Add function prototypes for most of the new Lite2 functions. Also made a few of the miscfs routines static to be consistent. Some modules simply required some additional #includes to remove -Wall warnings.
1997-02-12 06:52:51 +00:00
struct vfsconf;
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
struct vnode;
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_alloc(struct inode *,
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
int32_t, int32_t, int, struct ucred *, int32_t *);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_balloc(struct inode *,
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
int32_t, int, struct ucred *, struct buf **, int);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
void ext2_blkfree(struct inode *, int32_t, long);
int32_t ext2_blkpref(struct inode *, int32_t, int, int32_t *, int32_t);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_bmap(struct vop_bmap_args *);
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
int ext2_bmaparray(struct vnode *, int32_t, int32_t *, int *, int *);
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
void ext2_dirbad(struct inode *ip, doff_t offset, char *how);
void ext2_ei2i(struct ext2_inode *, struct inode *);
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
int ext2_getlbns(struct vnode *, int32_t, struct indir *, int *);
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
void ext2_i2ei(struct inode *, struct ext2_inode *);
int ext2_ihashget(dev_t, ino_t, int, struct vnode **);
void ext2_ihashinit(void);
void ext2_ihashins(struct inode *);
struct vnode *
ext2_ihashlookup(dev_t, ino_t);
void ext2_ihashrem(struct inode *);
Add an ext2_uninit() routine that undoes the actions performed by ext2_init(). This permits the ext2fs module to be unloaded without causing panics and leaking memory.
2002-05-18 22:18:17 +00:00
void ext2_ihashuninit(void);
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
void ext2_itimes(struct vnode *vp);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_reallocblks(struct vop_reallocblks_args *);
int ext2_reclaim(struct vop_reclaim_args *);
Use explicitly-sized types where necessary to make ext2fs work again after the change to a 64-bit daddr_t.
2002-05-18 19:12:38 +00:00
void ext2_setblock(struct ext2_sb_info *, u_char *, int32_t);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
int ext2_update(struct vnode *, int);
int ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **);
int ext2_vfree(struct vnode *, ino_t, int);
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
int ext2_vinit(struct mount *, vop_t **, vop_t **, struct vnode **vpp);
Remove __P.
2002-03-19 22:40:48 +00:00
int ext2_lookup(struct vop_cachedlookup_args *);
int ext2_readdir(struct vop_readdir_args *);
void ext2_print_inode(struct inode *);
int ext2_direnter(struct inode *,
struct vnode *, struct componentname *);
int ext2_dirremove(struct vnode *, struct componentname *);
int ext2_dirrewrite(struct inode *,
struct inode *, struct componentname *);
int ext2_dirempty(struct inode *, ino_t, struct ucred *);
int ext2_checkpath(struct inode *, struct inode *, struct ucred *);
struct ext2_group_desc * get_group_desc(struct mount * ,
unsigned int , struct buf ** );
int ext2_group_sparse(int group);
void ext2_discard_prealloc(struct inode *);
int ext2_inactive(struct vop_inactive_args *);
int ext2_new_block(struct mount * mp, unsigned long goal,
Fixed some style bugs in the removal of __P(()). Continuation lines were not outdented to preserve non-KNF lining up of code with parentheses. Switch to KNF formatting.
2002-03-23 13:10:13 +00:00
u_int32_t *prealloc_count, u_int32_t *prealloc_block);
Remove __P.
2002-03-19 22:40:48 +00:00
ino_t ext2_new_inode(const struct inode * dir, int mode);
unsigned long ext2_count_free(struct buf *map, unsigned int numchars);
Fixed some style bugs in the removal of __P(()). Continuation lines were not outdented to preserve non-KNF lining up of code with parentheses. Switch to KNF formatting.
2002-03-23 13:10:13 +00:00
void ext2_free_blocks(struct mount *mp, unsigned long block,
unsigned long count);
Remove __P.
2002-03-19 22:40:48 +00:00
void ext2_free_inode(struct inode * inode);
void mark_buffer_dirty(struct buf *bh);
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
Complete the separation of ext2fs from ufs by copying the remaining shared code and converting all ufs references. Originally it may have made sense to share common features between the two filesystems, but recently it has only caused problems, the UFS2 work being the final straw. All UFS_* indirect calls are now direct calls to ext2_* functions, and ext2fs-specific mount and inode structures have been introduced.
2002-05-16 19:08:03 +00:00
/* Flags to low-level allocation routines. */
#define B_CLRBUF 0x01 /* Request allocated buffer be cleared. */
#define B_SYNC 0x02 /* Do all allocations synchronously. */
#define B_METAONLY 0x04 /* Return indirect block buffer. */
#define B_NOWAIT 0x08 /* do not sleep to await lock */
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
extern vop_t **ext2_vnodeop_p;
extern vop_t **ext2_specop_p;
extern vop_t **ext2_fifoop_p;
Removed bogus _BEGIN_DECLS/_END_DECLS. Removed unused struct tag declarations in cloned code. Added or cleaned up idempotency ifdefs.
1996-05-01 02:16:17 +00:00
#endif /* !_SYS_GNU_EXT2FS_EXT2_EXTERN_H_ */
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