1 files changed, 0 insertions, 304 deletions

diff --git a/sys/gnu/ext2fs/ext2_readwrite.c b/sys/gnu/ext2fs/ext2_readwrite.c
deleted file mode 100644
index e533392..0000000
--- a/sys/gnu/ext2fs/ext2_readwrite.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*-
- *  modified for Lites 1.1
- *
- *  Aug 1995, Godmar Back (gback@cs.utah.edu)
- *  University of Utah, Department of Computer Science
- */
-/*-
- * Copyright (c) 1993
- *	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.
- *
- *	@(#)ufs_readwrite.c	8.7 (Berkeley) 1/21/94
- * $FreeBSD$
- */
-
-#define	BLKSIZE(a, b, c)	blksize(a, b, c)
-#define	FS			struct ext2_sb_info
-#define	I_FS			i_e2fs
-#define	READ			ext2_read
-#define	READ_S			"ext2_read"
-#define	WRITE			ext2_write
-#define	WRITE_S			"ext2_write"
-
-/*
- * Vnode op for reading.
- */
-/* ARGSUSED */
-static int
-READ(ap)
-	struct vop_read_args /* {
-		struct vnode *a_vp;
-		struct uio *a_uio;
-		int a_ioflag;
-		struct ucred *a_cred;
-	} */ *ap;
-{
-	struct vnode *vp;
-	struct inode *ip;
-	struct uio *uio;
-	FS *fs;
-	struct buf *bp;
-	daddr_t lbn, nextlbn;
-	off_t bytesinfile;
-	long size, xfersize, blkoffset;
-	int error, orig_resid;
-	int seqcount = ap->a_ioflag >> IO_SEQSHIFT;
-	u_short mode;
-
-	vp = ap->a_vp;
-	ip = VTOI(vp);
-	mode = ip->i_mode;
-	uio = ap->a_uio;
-
-#ifdef DIAGNOSTIC
-	if (uio->uio_rw != UIO_READ)
-		panic("%s: mode", READ_S);
-
-	if (vp->v_type == VLNK) {
-		if ((int)ip->i_size < vp->v_mount->mnt_maxsymlinklen)
-			panic("%s: short symlink", READ_S);
-	} else if (vp->v_type != VREG && vp->v_type != VDIR)
-		panic("%s: type %d", READ_S, vp->v_type);
-#endif
-	fs = ip->I_FS;
-	if ((uoff_t)uio->uio_offset > fs->fs_maxfilesize)
-		return (EFBIG);
-
-	orig_resid = uio->uio_resid;
-	for (error = 0, bp = NULL; uio->uio_resid > 0; bp = NULL) {
-		if ((bytesinfile = ip->i_size - uio->uio_offset) <= 0)
-			break;
-		lbn = lblkno(fs, uio->uio_offset);
-		nextlbn = lbn + 1;
-		size = BLKSIZE(fs, ip, lbn);
-		blkoffset = blkoff(fs, uio->uio_offset);
-
-		xfersize = fs->s_frag_size - blkoffset;
-		if (uio->uio_resid < xfersize)
-			xfersize = uio->uio_resid;
-		if (bytesinfile < xfersize)
-			xfersize = bytesinfile;
-
-		if (lblktosize(fs, nextlbn) >= ip->i_size)
-			error = bread(vp, lbn, size, NOCRED, &bp);
-		else if ((vp->v_mount->mnt_flag & MNT_NOCLUSTERR) == 0)
-			error = cluster_read(vp,
-			    ip->i_size, lbn, size, NOCRED,
-			    uio->uio_resid, (ap->a_ioflag >> IO_SEQSHIFT), &bp);
-		else if (seqcount > 1) {
-			int nextsize = BLKSIZE(fs, ip, nextlbn);
-			error = breadn(vp, lbn,
-			    size, &nextlbn, &nextsize, 1, NOCRED, &bp);
-		} else
-			error = bread(vp, lbn, size, NOCRED, &bp);
-		if (error) {
-			brelse(bp);
-			bp = NULL;
-			break;
-		}
-
-		/*
-		 * We should only get non-zero b_resid when an I/O error
-		 * has occurred, which should cause us to break above.
-		 * However, if the short read did not cause an error,
-		 * then we want to ensure that we do not uiomove bad
-		 * or uninitialized data.
-		 */
-		size -= bp->b_resid;
-		if (size < xfersize) {
-			if (size == 0)
-				break;
-			xfersize = size;
-		}
-		error =
-		    uiomove((char *)bp->b_data + blkoffset, (int)xfersize, uio);
-		if (error)
-			break;
-
-		bqrelse(bp);
-	}
-	if (bp != NULL)
-		bqrelse(bp);
-	if (orig_resid > 0 && (error == 0 || uio->uio_resid != orig_resid) &&
-	    (vp->v_mount->mnt_flag & MNT_NOATIME) == 0)
-		ip->i_flag |= IN_ACCESS;
-	return (error);
-}
-
-/*
- * Vnode op for writing.
- */
-static int
-WRITE(ap)
-	struct vop_write_args /* {
-		struct vnode *a_vp;
-		struct uio *a_uio;
-		int a_ioflag;
-		struct ucred *a_cred;
-	} */ *ap;
-{
-	struct vnode *vp;
-	struct uio *uio;
-	struct inode *ip;
-	FS *fs;
-	struct buf *bp;
-	struct thread *td;
-	daddr_t lbn;
-	off_t osize;
-	int seqcount;
-	int blkoffset, error, flags, ioflag, resid, size, xfersize;
-
-	ioflag = ap->a_ioflag;
-	seqcount = ap->a_ioflag >> IO_SEQSHIFT;
-	uio = ap->a_uio;
-	vp = ap->a_vp;
-	ip = VTOI(vp);
-
-#ifdef DIAGNOSTIC
-	if (uio->uio_rw != UIO_WRITE)
-		panic("%s: mode", WRITE_S);
-#endif
-
-	switch (vp->v_type) {
-	case VREG:
-		if (ioflag & IO_APPEND)
-			uio->uio_offset = ip->i_size;
-		if ((ip->i_flags & APPEND) && uio->uio_offset != ip->i_size)
-			return (EPERM);
-		/* FALLTHROUGH */
-	case VLNK:
-		break;
-	case VDIR:
-		if ((ioflag & IO_SYNC) == 0)
-			panic("%s: nonsync dir write", WRITE_S);
-		break;
-	default:
-		panic("%s: type", WRITE_S);
-	}
-
-	fs = ip->I_FS;
-	if (uio->uio_offset < 0 ||
-	    (uoff_t)uio->uio_offset + uio->uio_resid > fs->fs_maxfilesize)
-		return (EFBIG);
-	/*
-	 * Maybe this should be above the vnode op call, but so long as
-	 * file servers have no limits, I don't think it matters.
-	 */
-	td = uio->uio_td;
-	if (vp->v_type == VREG && td != NULL) {
-		PROC_LOCK(td->td_proc);
-		if (uio->uio_offset + uio->uio_resid >
-		    lim_cur(td->td_proc, RLIMIT_FSIZE)) {
-			psignal(td->td_proc, SIGXFSZ);
-			PROC_UNLOCK(td->td_proc);
-			return (EFBIG);
-		}
-		PROC_UNLOCK(td->td_proc);
-	}
-
-	resid = uio->uio_resid;
-	osize = ip->i_size;
-	flags = ioflag & IO_SYNC ? B_SYNC : 0;
-
-	for (error = 0; uio->uio_resid > 0;) {
-		lbn = lblkno(fs, uio->uio_offset);
-		blkoffset = blkoff(fs, uio->uio_offset);
-		xfersize = fs->s_frag_size - blkoffset;
-		if (uio->uio_resid < xfersize)
-			xfersize = uio->uio_resid;
-
-		if (uio->uio_offset + xfersize > ip->i_size)
-			vnode_pager_setsize(vp, uio->uio_offset + xfersize);
-
-		/*
-		 * Avoid a data-consistency race between write() and mmap()
-		 * by ensuring that newly allocated blocks are zerod.  The
-		 * race can occur even in the case where the write covers
-		 * the entire block.
-		 */
-		flags |= B_CLRBUF;
-#if 0
-		if (fs->s_frag_size > xfersize)
-			flags |= B_CLRBUF;
-		else
-			flags &= ~B_CLRBUF;
-#endif
-
-		error = ext2_balloc(ip,
-		    lbn, blkoffset + xfersize, ap->a_cred, &bp, flags);
-		if (error)
-			break;
-
-		if (uio->uio_offset + xfersize > ip->i_size) {
-			ip->i_size = uio->uio_offset + xfersize;
-		}
-
-		size = BLKSIZE(fs, ip, lbn) - bp->b_resid;
-		if (size < xfersize)
-			xfersize = size;
-
-		error =
-		    uiomove((char *)bp->b_data + blkoffset, (int)xfersize, uio);
-		if ((ioflag & IO_VMIO) &&
-		   (LIST_FIRST(&bp->b_dep) == NULL)) /* in ext2fs? */
-			bp->b_flags |= B_RELBUF;
-
-		if (ioflag & IO_SYNC) {
-			(void)bwrite(bp);
-		} else if (xfersize + blkoffset == fs->s_frag_size) {
-			if ((vp->v_mount->mnt_flag & MNT_NOCLUSTERW) == 0) {
-				bp->b_flags |= B_CLUSTEROK;
-				cluster_write(vp, bp, ip->i_size, seqcount);
-			} else {
-				bawrite(bp);
-			}
-		} else {
-			bp->b_flags |= B_CLUSTEROK;
-			bdwrite(bp);
-		}
-		if (error || xfersize == 0)
-			break;
-		ip->i_flag |= IN_CHANGE | IN_UPDATE;
-	}
-	/*
-	 * If we successfully wrote any data, and we are not the superuser
-	 * we clear the setuid and setgid bits as a precaution against
-	 * tampering.
-	 */
-	if (resid > uio->uio_resid && ap->a_cred && ap->a_cred->cr_uid != 0)
-		ip->i_mode &= ~(ISUID | ISGID);
-	if (error) {
-		if (ioflag & IO_UNIT) {
-			(void)ext2_truncate(vp, osize,
-			    ioflag & IO_SYNC, ap->a_cred, uio->uio_td);
-			uio->uio_offset -= resid - uio->uio_resid;
-			uio->uio_resid = resid;
-		}
-	} else if (resid > uio->uio_resid && (ioflag & IO_SYNC))
-		error = ext2_update(vp, 1);
-	return (error);
-}