Bring in the ext2fs work done by Aditya Sarawgi during and after Google Summer

of Code 2009:

- BSDL block and inode allocation policies for ext2fs. This involves the use
  FFS1 style block and inode allocation for ext2fs. Preallocation was removed
  since it was GPL'd.
- Make ext2fs MPSAFE by introducing locks to per-mount datastructures.
- Fixes for kern/122047 PR.
- Various small bugfixes.
- Move out of gnu/ directory.

Sponsored by:   Google Inc.
Submitted by:	Aditya Sarawgi <sarawgi.aditya AT SPAMFREE gmail DOT com>

1 files changed, 0 insertions, 104 deletions

diff --git a/sys/gnu/fs/ext2fs/ext2_extern.h b/sys/gnu/fs/ext2fs/ext2_extern.h
deleted file mode 100644
index 24c8f45..0000000
--- a/sys/gnu/fs/ext2fs/ext2_extern.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*-
- *  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.
- * 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
- * $FreeBSD$
- */
-
-#ifndef _SYS_GNU_EXT2FS_EXT2_EXTERN_H_
-#define	_SYS_GNU_EXT2FS_EXT2_EXTERN_H_
-
-struct ext2_inode;
-struct indir;
-struct inode;
-struct mount;
-struct vfsconf;
-struct vnode;
-
-int	ext2_alloc(struct inode *,
-	    int32_t, int32_t, int, struct ucred *, int32_t *);
-int	ext2_balloc(struct inode *,
-	    int32_t, int, struct ucred *, struct buf **, int);
-int	ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
-void	ext2_blkfree(struct inode *, int32_t, long);
-int32_t	ext2_blkpref(struct inode *, int32_t, int, int32_t *, int32_t);
-int	ext2_bmap(struct vop_bmap_args *);
-int	ext2_bmaparray(struct vnode *, int32_t, int32_t *, int *, int *);
-void	ext2_dirbad(struct inode *ip, doff_t offset, char *how);
-void	ext2_ei2i(struct ext2_inode *, struct inode *);
-int	ext2_getlbns(struct vnode *, int32_t, struct indir *, int *);
-void	ext2_i2ei(struct inode *, struct ext2_inode *);
-void	ext2_itimes(struct vnode *vp);
-int	ext2_reallocblks(struct vop_reallocblks_args *);
-int	ext2_reclaim(struct vop_reclaim_args *);
-void	ext2_setblock(struct ext2_sb_info *, u_char *, int32_t);
-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);
-int	ext2_vinit(struct mount *, struct vop_vector *, struct vnode **vpp);
-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,
-	    u_int32_t *prealloc_count, u_int32_t *prealloc_block);
-ino_t	ext2_new_inode(const struct inode * dir, int mode);
-unsigned long ext2_count_free(struct buf *map, unsigned int numchars);
-void	ext2_free_blocks(struct mount *mp, unsigned long block,
-	    unsigned long count);
-void	ext2_free_inode(struct inode * inode);
-void	mark_buffer_dirty(struct buf *bh);
-
-/* 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 */
-
-extern struct vop_vector ext2_vnodeops;
-extern struct vop_vector ext2_fifoops;
-
-#endif /* !_SYS_GNU_EXT2FS_EXT2_EXTERN_H_ */