Commit 39cd9f87 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Tim Shimmin
Browse files

[XFS] kill move.[ch]



Kill uio related functions and defines now that they're unused.

SGI-PV: 968563
SGI-Modid: xfs-linux-melb:xfs-kern:29480a

Signed-off-by: default avatarChristoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarDavid Chinner <dgc@sgi.com>
Signed-off-by: default avatarTim Shimmin <tes@sgi.com>
parent 804c83c3
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@@ -114,7 +114,6 @@ xfs-y += $(addprefix $(XFS_LINUX)/, \
# Objects in support/
xfs-y				+= $(addprefix support/, \
				   debug.o \
				   move.o \
				   uuid.o)

xfs-$(CONFIG_XFS_TRACE)		+= support/ktrace.o
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@@ -51,7 +51,6 @@

#include <support/ktrace.h>
#include <support/debug.h>
#include <support/move.h>
#include <support/uuid.h>

#include <linux/mm.h>

fs/xfs/support/move.c

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/*
 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include <xfs.h>

/* Read from kernel buffer at src to user/kernel buffer defined
 * by the uio structure. Advance the pointer in the uio struct
 * as we go.
 */
int
xfs_uio_read(caddr_t src, size_t len, struct uio *uio)
{
	size_t	count;

	if (!len || !uio->uio_resid)
		return 0;

	count = uio->uio_iov->iov_len;
	if (!count)
		return 0;
	if (count > len)
		count = len;

	if (uio->uio_segflg == UIO_USERSPACE) {
		if (copy_to_user(uio->uio_iov->iov_base, src, count))
			return EFAULT;
	} else {
		ASSERT(uio->uio_segflg == UIO_SYSSPACE);
		memcpy(uio->uio_iov->iov_base, src, count);
	}

	uio->uio_iov->iov_base = (void*)((char*)uio->uio_iov->iov_base + count);
	uio->uio_iov->iov_len -= count;
	uio->uio_offset += count;
	uio->uio_resid -= count;
	return 0;
}

fs/xfs/support/move.h

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/*
 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Portions Copyright (c) 1982, 1986, 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. 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.
 */
#ifndef __XFS_SUPPORT_MOVE_H__
#define __XFS_SUPPORT_MOVE_H__

#include <linux/uio.h>
#include <asm/uaccess.h>

/* Segment flag values. */
enum uio_seg {
	UIO_USERSPACE,          /* from user data space */
	UIO_SYSSPACE,           /* from system space */
};

struct uio {
	struct kvec	*uio_iov;   /* pointer to array of iovecs */
	int		uio_iovcnt; /* number of iovecs in array */
	xfs_off_t	uio_offset; /* offset in file this uio corresponds to */
	int		uio_resid;  /* residual i/o count */
	enum uio_seg	uio_segflg; /* see above */
};

typedef struct uio uio_t;
typedef struct kvec iovec_t;

extern int	xfs_uio_read (caddr_t, size_t, uio_t *);

#endif  /* __XFS_SUPPORT_MOVE_H__ */