Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 1008 deletions

diff --git a/ANDROID_3.4.5/fs/read_write.c b/ANDROID_3.4.5/fs/read_write.c
deleted file mode 100644
index ffc99d22..00000000
--- a/ANDROID_3.4.5/fs/read_write.c
+++ /dev/null
@@ -1,1008 +0,0 @@
-/*
- *  linux/fs/read_write.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- */
-
-#include <linux/slab.h> 
-#include <linux/stat.h>
-#include <linux/fcntl.h>
-#include <linux/file.h>
-#include <linux/uio.h>
-#include <linux/fsnotify.h>
-#include <linux/security.h>
-#include <linux/export.h>
-#include <linux/syscalls.h>
-#include <linux/pagemap.h>
-#include <linux/splice.h>
-#include "read_write.h"
-
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-const struct file_operations generic_ro_fops = {
-	.llseek		= generic_file_llseek,
-	.read		= do_sync_read,
-	.aio_read	= generic_file_aio_read,
-	.mmap		= generic_file_readonly_mmap,
-	.splice_read	= generic_file_splice_read,
-};
-
-EXPORT_SYMBOL(generic_ro_fops);
-
-static inline int unsigned_offsets(struct file *file)
-{
-	return file->f_mode & FMODE_UNSIGNED_OFFSET;
-}
-
-static loff_t lseek_execute(struct file *file, struct inode *inode,
-		loff_t offset, loff_t maxsize)
-{
-	if (offset < 0 && !unsigned_offsets(file))
-		return -EINVAL;
-	if (offset > maxsize)
-		return -EINVAL;
-
-	if (offset != file->f_pos) {
-		file->f_pos = offset;
-		file->f_version = 0;
-	}
-	return offset;
-}
-
-/**
- * generic_file_llseek_size - generic llseek implementation for regular files
- * @file:	file structure to seek on
- * @offset:	file offset to seek to
- * @origin:	type of seek
- * @size:	max size of file system
- *
- * This is a variant of generic_file_llseek that allows passing in a custom
- * file size.
- *
- * Synchronization:
- * SEEK_SET and SEEK_END are unsynchronized (but atomic on 64bit platforms)
- * SEEK_CUR is synchronized against other SEEK_CURs, but not read/writes.
- * read/writes behave like SEEK_SET against seeks.
- */
-loff_t
-generic_file_llseek_size(struct file *file, loff_t offset, int origin,
-		loff_t maxsize)
-{
-	struct inode *inode = file->f_mapping->host;
-
-	switch (origin) {
-	case SEEK_END:
-		offset += i_size_read(inode);
-		break;
-	case SEEK_CUR:
-		/*
-		 * Here we special-case the lseek(fd, 0, SEEK_CUR)
-		 * position-querying operation.  Avoid rewriting the "same"
-		 * f_pos value back to the file because a concurrent read(),
-		 * write() or lseek() might have altered it
-		 */
-		if (offset == 0)
-			return file->f_pos;
-		/*
-		 * f_lock protects against read/modify/write race with other
-		 * SEEK_CURs. Note that parallel writes and reads behave
-		 * like SEEK_SET.
-		 */
-		spin_lock(&file->f_lock);
-		offset = lseek_execute(file, inode, file->f_pos + offset,
-				       maxsize);
-		spin_unlock(&file->f_lock);
-		return offset;
-	case SEEK_DATA:
-		/*
-		 * In the generic case the entire file is data, so as long as
-		 * offset isn't at the end of the file then the offset is data.
-		 */
-		if (offset >= i_size_read(inode))
-			return -ENXIO;
-		break;
-	case SEEK_HOLE:
-		/*
-		 * There is a virtual hole at the end of the file, so as long as
-		 * offset isn't i_size or larger, return i_size.
-		 */
-		if (offset >= i_size_read(inode))
-			return -ENXIO;
-		offset = i_size_read(inode);
-		break;
-	}
-
-	return lseek_execute(file, inode, offset, maxsize);
-}
-EXPORT_SYMBOL(generic_file_llseek_size);
-
-/**
- * generic_file_llseek - generic llseek implementation for regular files
- * @file:	file structure to seek on
- * @offset:	file offset to seek to
- * @origin:	type of seek
- *
- * This is a generic implemenation of ->llseek useable for all normal local
- * filesystems.  It just updates the file offset to the value specified by
- * @offset and @origin under i_mutex.
- */
-loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
-{
-	struct inode *inode = file->f_mapping->host;
-
-	return generic_file_llseek_size(file, offset, origin,
-					inode->i_sb->s_maxbytes);
-}
-EXPORT_SYMBOL(generic_file_llseek);
-
-/**
- * noop_llseek - No Operation Performed llseek implementation
- * @file:	file structure to seek on
- * @offset:	file offset to seek to
- * @origin:	type of seek
- *
- * This is an implementation of ->llseek useable for the rare special case when
- * userspace expects the seek to succeed but the (device) file is actually not
- * able to perform the seek. In this case you use noop_llseek() instead of
- * falling back to the default implementation of ->llseek.
- */
-loff_t noop_llseek(struct file *file, loff_t offset, int origin)
-{
-	return file->f_pos;
-}
-EXPORT_SYMBOL(noop_llseek);
-
-loff_t no_llseek(struct file *file, loff_t offset, int origin)
-{
-	return -ESPIPE;
-}
-EXPORT_SYMBOL(no_llseek);
-
-loff_t default_llseek(struct file *file, loff_t offset, int origin)
-{
-	struct inode *inode = file->f_path.dentry->d_inode;
-	loff_t retval;
-
-	mutex_lock(&inode->i_mutex);
-	switch (origin) {
-		case SEEK_END:
-			offset += i_size_read(inode);
-			break;
-		case SEEK_CUR:
-			if (offset == 0) {
-				retval = file->f_pos;
-				goto out;
-			}
-			offset += file->f_pos;
-			break;
-		case SEEK_DATA:
-			/*
-			 * In the generic case the entire file is data, so as
-			 * long as offset isn't at the end of the file then the
-			 * offset is data.
-			 */
-			if (offset >= inode->i_size) {
-				retval = -ENXIO;
-				goto out;
-			}
-			break;
-		case SEEK_HOLE:
-			/*
-			 * There is a virtual hole at the end of the file, so
-			 * as long as offset isn't i_size or larger, return
-			 * i_size.
-			 */
-			if (offset >= inode->i_size) {
-				retval = -ENXIO;
-				goto out;
-			}
-			offset = inode->i_size;
-			break;
-	}
-	retval = -EINVAL;
-	if (offset >= 0 || unsigned_offsets(file)) {
-		if (offset != file->f_pos) {
-			file->f_pos = offset;
-			file->f_version = 0;
-		}
-		retval = offset;
-	}
-out:
-	mutex_unlock(&inode->i_mutex);
-	return retval;
-}
-EXPORT_SYMBOL(default_llseek);
-
-loff_t vfs_llseek(struct file *file, loff_t offset, int origin)
-{
-	loff_t (*fn)(struct file *, loff_t, int);
-
-	fn = no_llseek;
-	if (file->f_mode & FMODE_LSEEK) {
-		if (file->f_op && file->f_op->llseek)
-			fn = file->f_op->llseek;
-	}
-	return fn(file, offset, origin);
-}
-EXPORT_SYMBOL(vfs_llseek);
-
-SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, origin)
-{
-	off_t retval;
-	struct file * file;
-	int fput_needed;
-
-	retval = -EBADF;
-	file = fget_light(fd, &fput_needed);
-	if (!file)
-		goto bad;
-
-	retval = -EINVAL;
-	if (origin <= SEEK_MAX) {
-		loff_t res = vfs_llseek(file, offset, origin);
-		retval = res;
-		if (res != (loff_t)retval)
-			retval = -EOVERFLOW;	/* LFS: should only happen on 32 bit platforms */
-	}
-	fput_light(file, fput_needed);
-bad:
-	return retval;
-}
-
-#ifdef __ARCH_WANT_SYS_LLSEEK
-SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
-		unsigned long, offset_low, loff_t __user *, result,
-		unsigned int, origin)
-{
-	int retval;
-	struct file * file;
-	loff_t offset;
-	int fput_needed;
-
-	retval = -EBADF;
-	file = fget_light(fd, &fput_needed);
-	if (!file)
-		goto bad;
-
-	retval = -EINVAL;
-	if (origin > SEEK_MAX)
-		goto out_putf;
-
-	offset = vfs_llseek(file, ((loff_t) offset_high << 32) | offset_low,
-			origin);
-
-	retval = (int)offset;
-	if (offset >= 0) {
-		retval = -EFAULT;
-		if (!copy_to_user(result, &offset, sizeof(offset)))
-			retval = 0;
-	}
-out_putf:
-	fput_light(file, fput_needed);
-bad:
-	return retval;
-}
-#endif
-
-
-/*
- * rw_verify_area doesn't like huge counts. We limit
- * them to something that fits in "int" so that others
- * won't have to do range checks all the time.
- */
-int rw_verify_area(int read_write, struct file *file, loff_t *ppos, size_t count)
-{
-	struct inode *inode;
-	loff_t pos;
-	int retval = -EINVAL;
-
-	inode = file->f_path.dentry->d_inode;
-	if (unlikely((ssize_t) count < 0))
-		return retval;
-	pos = *ppos;
-	if (unlikely(pos < 0)) {
-		if (!unsigned_offsets(file))
-			return retval;
-		if (count >= -pos) /* both values are in 0..LLONG_MAX */
-			return -EOVERFLOW;
-	} else if (unlikely((loff_t) (pos + count) < 0)) {
-		if (!unsigned_offsets(file))
-			return retval;
-	}
-
-	if (unlikely(inode->i_flock && mandatory_lock(inode))) {
-		retval = locks_mandatory_area(
-			read_write == READ ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE,
-			inode, file, pos, count);
-		if (retval < 0)
-			return retval;
-	}
-	retval = security_file_permission(file,
-				read_write == READ ? MAY_READ : MAY_WRITE);
-	if (retval)
-		return retval;
-	return count > MAX_RW_COUNT ? MAX_RW_COUNT : count;
-}
-
-static void wait_on_retry_sync_kiocb(struct kiocb *iocb)
-{
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	if (!kiocbIsKicked(iocb))
-		schedule();
-	else
-		kiocbClearKicked(iocb);
-	__set_current_state(TASK_RUNNING);
-}
-
-ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)
-{
-	struct iovec iov = { .iov_base = buf, .iov_len = len };
-	struct kiocb kiocb;
-	ssize_t ret;
-
-	init_sync_kiocb(&kiocb, filp);
-	kiocb.ki_pos = *ppos;
-	kiocb.ki_left = len;
-	kiocb.ki_nbytes = len;
-
-	for (;;) {
-		ret = filp->f_op->aio_read(&kiocb, &iov, 1, kiocb.ki_pos);
-		if (ret != -EIOCBRETRY)
-			break;
-		wait_on_retry_sync_kiocb(&kiocb);
-	}
-
-	if (-EIOCBQUEUED == ret)
-		ret = wait_on_sync_kiocb(&kiocb);
-	*ppos = kiocb.ki_pos;
-	return ret;
-}
-
-EXPORT_SYMBOL(do_sync_read);
-
-ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
-{
-	ssize_t ret;
-
-	if (!(file->f_mode & FMODE_READ))
-		return -EBADF;
-	if (!file->f_op || (!file->f_op->read && !file->f_op->aio_read))
-		return -EINVAL;
-	if (unlikely(!access_ok(VERIFY_WRITE, buf, count)))
-		return -EFAULT;
-
-	ret = rw_verify_area(READ, file, pos, count);
-	if (ret >= 0) {
-		count = ret;
-		if (file->f_op->read)
-			ret = file->f_op->read(file, buf, count, pos);
-		else
-			ret = do_sync_read(file, buf, count, pos);
-		if (ret > 0) {
-			fsnotify_access(file);
-			add_rchar(current, ret);
-		}
-		inc_syscr(current);
-	}
-
-	return ret;
-}
-
-EXPORT_SYMBOL(vfs_read);
-
-ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
-{
-	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
-	struct kiocb kiocb;
-	ssize_t ret;
-
-	init_sync_kiocb(&kiocb, filp);
-	kiocb.ki_pos = *ppos;
-	kiocb.ki_left = len;
-	kiocb.ki_nbytes = len;
-
-	for (;;) {
-		ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
-		if (ret != -EIOCBRETRY)
-			break;
-		wait_on_retry_sync_kiocb(&kiocb);
-	}
-
-	if (-EIOCBQUEUED == ret)
-		ret = wait_on_sync_kiocb(&kiocb);
-	*ppos = kiocb.ki_pos;
-	return ret;
-}
-
-EXPORT_SYMBOL(do_sync_write);
-
-ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
-{
-	ssize_t ret;
-
-	if (!(file->f_mode & FMODE_WRITE))
-		return -EBADF;
-	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
-		return -EINVAL;
-	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
-		return -EFAULT;
-
-	ret = rw_verify_area(WRITE, file, pos, count);
-	if (ret >= 0) {
-		count = ret;
-		if (file->f_op->write)
-			ret = file->f_op->write(file, buf, count, pos);
-		else
-			ret = do_sync_write(file, buf, count, pos);
-		if (ret > 0) {
-			fsnotify_modify(file);
-			add_wchar(current, ret);
-		}
-		inc_syscw(current);
-	}
-
-	return ret;
-}
-
-EXPORT_SYMBOL(vfs_write);
-
-static inline loff_t file_pos_read(struct file *file)
-{
-	return file->f_pos;
-}
-
-static inline void file_pos_write(struct file *file, loff_t pos)
-{
-	file->f_pos = pos;
-}
-
-SYSCALL_DEFINE3(read, unsigned int, fd, char __user *, buf, size_t, count)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		loff_t pos = file_pos_read(file);
-		ret = vfs_read(file, buf, count, &pos);
-		file_pos_write(file, pos);
-		fput_light(file, fput_needed);
-	}
-
-	return ret;
-}
-
-SYSCALL_DEFINE3(write, unsigned int, fd, const char __user *, buf,
-		size_t, count)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		loff_t pos = file_pos_read(file);
-		ret = vfs_write(file, buf, count, &pos);
-		file_pos_write(file, pos);
-		fput_light(file, fput_needed);
-	}
-
-	return ret;
-}
-
-SYSCALL_DEFINE(pread64)(unsigned int fd, char __user *buf,
-			size_t count, loff_t pos)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	if (pos < 0)
-		return -EINVAL;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		ret = -ESPIPE;
-		if (file->f_mode & FMODE_PREAD)
-			ret = vfs_read(file, buf, count, &pos);
-		fput_light(file, fput_needed);
-	}
-
-	return ret;
-}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_pread64(long fd, long buf, long count, loff_t pos)
-{
-	return SYSC_pread64((unsigned int) fd, (char __user *) buf,
-			    (size_t) count, pos);
-}
-SYSCALL_ALIAS(sys_pread64, SyS_pread64);
-#endif
-
-SYSCALL_DEFINE(pwrite64)(unsigned int fd, const char __user *buf,
-			 size_t count, loff_t pos)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	if (pos < 0)
-		return -EINVAL;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		ret = -ESPIPE;
-		if (file->f_mode & FMODE_PWRITE)  
-			ret = vfs_write(file, buf, count, &pos);
-		fput_light(file, fput_needed);
-	}
-
-	return ret;
-}
-#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
-asmlinkage long SyS_pwrite64(long fd, long buf, long count, loff_t pos)
-{
-	return SYSC_pwrite64((unsigned int) fd, (const char __user *) buf,
-			     (size_t) count, pos);
-}
-SYSCALL_ALIAS(sys_pwrite64, SyS_pwrite64);
-#endif
-
-/*
- * Reduce an iovec's length in-place.  Return the resulting number of segments
- */
-unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to)
-{
-	unsigned long seg = 0;
-	size_t len = 0;
-
-	while (seg < nr_segs) {
-		seg++;
-		if (len + iov->iov_len >= to) {
-			iov->iov_len = to - len;
-			break;
-		}
-		len += iov->iov_len;
-		iov++;
-	}
-	return seg;
-}
-EXPORT_SYMBOL(iov_shorten);
-
-ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov,
-		unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn)
-{
-	struct kiocb kiocb;
-	ssize_t ret;
-
-	init_sync_kiocb(&kiocb, filp);
-	kiocb.ki_pos = *ppos;
-	kiocb.ki_left = len;
-	kiocb.ki_nbytes = len;
-
-	for (;;) {
-		ret = fn(&kiocb, iov, nr_segs, kiocb.ki_pos);
-		if (ret != -EIOCBRETRY)
-			break;
-		wait_on_retry_sync_kiocb(&kiocb);
-	}
-
-	if (ret == -EIOCBQUEUED)
-		ret = wait_on_sync_kiocb(&kiocb);
-	*ppos = kiocb.ki_pos;
-	return ret;
-}
-
-/* Do it by hand, with file-ops */
-ssize_t do_loop_readv_writev(struct file *filp, struct iovec *iov,
-		unsigned long nr_segs, loff_t *ppos, io_fn_t fn)
-{
-	struct iovec *vector = iov;
-	ssize_t ret = 0;
-
-	while (nr_segs > 0) {
-		void __user *base;
-		size_t len;
-		ssize_t nr;
-
-		base = vector->iov_base;
-		len = vector->iov_len;
-		vector++;
-		nr_segs--;
-
-		nr = fn(filp, base, len, ppos);
-
-		if (nr < 0) {
-			if (!ret)
-				ret = nr;
-			break;
-		}
-		ret += nr;
-		if (nr != len)
-			break;
-	}
-
-	return ret;
-}
-
-/* A write operation does a read from user space and vice versa */
-#define vrfy_dir(type) ((type) == READ ? VERIFY_WRITE : VERIFY_READ)
-
-ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
-			      unsigned long nr_segs, unsigned long fast_segs,
-			      struct iovec *fast_pointer,
-			      struct iovec **ret_pointer,
-			      int check_access)
-{
-	unsigned long seg;
-	ssize_t ret;
-	struct iovec *iov = fast_pointer;
-
-	/*
-	 * SuS says "The readv() function *may* fail if the iovcnt argument
-	 * was less than or equal to 0, or greater than {IOV_MAX}.  Linux has
-	 * traditionally returned zero for zero segments, so...
-	 */
-	if (nr_segs == 0) {
-		ret = 0;
-		goto out;
-	}
-
-	/*
-	 * First get the "struct iovec" from user memory and
-	 * verify all the pointers
-	 */
-	if (nr_segs > UIO_MAXIOV) {
-		ret = -EINVAL;
-		goto out;
-	}
-	if (nr_segs > fast_segs) {
-		iov = kmalloc(nr_segs*sizeof(struct iovec), GFP_KERNEL);
-		if (iov == NULL) {
-			ret = -ENOMEM;
-			goto out;
-		}
-	}
-	if (copy_from_user(iov, uvector, nr_segs*sizeof(*uvector))) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	/*
-	 * According to the Single Unix Specification we should return EINVAL
-	 * if an element length is < 0 when cast to ssize_t or if the
-	 * total length would overflow the ssize_t return value of the
-	 * system call.
-	 *
-	 * Linux caps all read/write calls to MAX_RW_COUNT, and avoids the
-	 * overflow case.
-	 */
-	ret = 0;
-	for (seg = 0; seg < nr_segs; seg++) {
-		void __user *buf = iov[seg].iov_base;
-		ssize_t len = (ssize_t)iov[seg].iov_len;
-
-		/* see if we we're about to use an invalid len or if
-		 * it's about to overflow ssize_t */
-		if (len < 0) {
-			ret = -EINVAL;
-			goto out;
-		}
-		if (check_access
-		    && unlikely(!access_ok(vrfy_dir(type), buf, len))) {
-			ret = -EFAULT;
-			goto out;
-		}
-		if (len > MAX_RW_COUNT - ret) {
-			len = MAX_RW_COUNT - ret;
-			iov[seg].iov_len = len;
-		}
-		ret += len;
-	}
-out:
-	*ret_pointer = iov;
-	return ret;
-}
-
-static ssize_t do_readv_writev(int type, struct file *file,
-			       const struct iovec __user * uvector,
-			       unsigned long nr_segs, loff_t *pos)
-{
-	size_t tot_len;
-	struct iovec iovstack[UIO_FASTIOV];
-	struct iovec *iov = iovstack;
-	ssize_t ret;
-	io_fn_t fn;
-	iov_fn_t fnv;
-
-	if (!file->f_op) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	ret = rw_copy_check_uvector(type, uvector, nr_segs,
-				    ARRAY_SIZE(iovstack), iovstack, &iov, 1);
-	if (ret <= 0)
-		goto out;
-
-	tot_len = ret;
-	ret = rw_verify_area(type, file, pos, tot_len);
-	if (ret < 0)
-		goto out;
-
-	fnv = NULL;
-	if (type == READ) {
-		fn = file->f_op->read;
-		fnv = file->f_op->aio_read;
-	} else {
-		fn = (io_fn_t)file->f_op->write;
-		fnv = file->f_op->aio_write;
-	}
-
-	if (fnv)
-		ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,
-						pos, fnv);
-	else
-		ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);
-
-out:
-	if (iov != iovstack)
-		kfree(iov);
-	if ((ret + (type == READ)) > 0) {
-		if (type == READ)
-			fsnotify_access(file);
-		else
-			fsnotify_modify(file);
-	}
-	return ret;
-}
-
-ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
-		  unsigned long vlen, loff_t *pos)
-{
-	if (!(file->f_mode & FMODE_READ))
-		return -EBADF;
-	if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read))
-		return -EINVAL;
-
-	return do_readv_writev(READ, file, vec, vlen, pos);
-}
-
-EXPORT_SYMBOL(vfs_readv);
-
-ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
-		   unsigned long vlen, loff_t *pos)
-{
-	if (!(file->f_mode & FMODE_WRITE))
-		return -EBADF;
-	if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
-		return -EINVAL;
-
-	return do_readv_writev(WRITE, file, vec, vlen, pos);
-}
-
-EXPORT_SYMBOL(vfs_writev);
-
-SYSCALL_DEFINE3(readv, unsigned long, fd, const struct iovec __user *, vec,
-		unsigned long, vlen)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		loff_t pos = file_pos_read(file);
-		ret = vfs_readv(file, vec, vlen, &pos);
-		file_pos_write(file, pos);
-		fput_light(file, fput_needed);
-	}
-
-	if (ret > 0)
-		add_rchar(current, ret);
-	inc_syscr(current);
-	return ret;
-}
-
-SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,
-		unsigned long, vlen)
-{
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		loff_t pos = file_pos_read(file);
-		ret = vfs_writev(file, vec, vlen, &pos);
-		file_pos_write(file, pos);
-		fput_light(file, fput_needed);
-	}
-
-	if (ret > 0)
-		add_wchar(current, ret);
-	inc_syscw(current);
-	return ret;
-}
-
-static inline loff_t pos_from_hilo(unsigned long high, unsigned long low)
-{
-#define HALF_LONG_BITS (BITS_PER_LONG / 2)
-	return (((loff_t)high << HALF_LONG_BITS) << HALF_LONG_BITS) | low;
-}
-
-SYSCALL_DEFINE5(preadv, unsigned long, fd, const struct iovec __user *, vec,
-		unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
-{
-	loff_t pos = pos_from_hilo(pos_h, pos_l);
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	if (pos < 0)
-		return -EINVAL;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		ret = -ESPIPE;
-		if (file->f_mode & FMODE_PREAD)
-			ret = vfs_readv(file, vec, vlen, &pos);
-		fput_light(file, fput_needed);
-	}
-
-	if (ret > 0)
-		add_rchar(current, ret);
-	inc_syscr(current);
-	return ret;
-}
-
-SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec,
-		unsigned long, vlen, unsigned long, pos_l, unsigned long, pos_h)
-{
-	loff_t pos = pos_from_hilo(pos_h, pos_l);
-	struct file *file;
-	ssize_t ret = -EBADF;
-	int fput_needed;
-
-	if (pos < 0)
-		return -EINVAL;
-
-	file = fget_light(fd, &fput_needed);
-	if (file) {
-		ret = -ESPIPE;
-		if (file->f_mode & FMODE_PWRITE)
-			ret = vfs_writev(file, vec, vlen, &pos);
-		fput_light(file, fput_needed);
-	}
-
-	if (ret > 0)
-		add_wchar(current, ret);
-	inc_syscw(current);
-	return ret;
-}
-
-static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
-			   size_t count, loff_t max)
-{
-	struct file * in_file, * out_file;
-	struct inode * in_inode, * out_inode;
-	loff_t pos;
-	ssize_t retval;
-	int fput_needed_in, fput_needed_out, fl;
-
-	/*
-	 * Get input file, and verify that it is ok..
-	 */
-	retval = -EBADF;
-	in_file = fget_light(in_fd, &fput_needed_in);
-	if (!in_file)
-		goto out;
-	if (!(in_file->f_mode & FMODE_READ))
-		goto fput_in;
-	retval = -ESPIPE;
-	if (!ppos)
-		ppos = &in_file->f_pos;
-	else
-		if (!(in_file->f_mode & FMODE_PREAD))
-			goto fput_in;
-	retval = rw_verify_area(READ, in_file, ppos, count);
-	if (retval < 0)
-		goto fput_in;
-	count = retval;
-
-	/*
-	 * Get output file, and verify that it is ok..
-	 */
-	retval = -EBADF;
-	out_file = fget_light(out_fd, &fput_needed_out);
-	if (!out_file)
-		goto fput_in;
-	if (!(out_file->f_mode & FMODE_WRITE))
-		goto fput_out;
-	retval = -EINVAL;
-	in_inode = in_file->f_path.dentry->d_inode;
-	out_inode = out_file->f_path.dentry->d_inode;
-	retval = rw_verify_area(WRITE, out_file, &out_file->f_pos, count);
-	if (retval < 0)
-		goto fput_out;
-	count = retval;
-
-	if (!max)
-		max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);
-
-	pos = *ppos;
-	if (unlikely(pos + count > max)) {
-		retval = -EOVERFLOW;
-		if (pos >= max)
-			goto fput_out;
-		count = max - pos;
-	}
-
-	fl = 0;
-#if 0
-	/*
-	 * We need to debate whether we can enable this or not. The
-	 * man page documents EAGAIN return for the output at least,
-	 * and the application is arguably buggy if it doesn't expect
-	 * EAGAIN on a non-blocking file descriptor.
-	 */
-	if (in_file->f_flags & O_NONBLOCK)
-		fl = SPLICE_F_NONBLOCK;
-#endif
-	retval = do_splice_direct(in_file, ppos, out_file, count, fl);
-
-	if (retval > 0) {
-		add_rchar(current, retval);
-		add_wchar(current, retval);
-	}
-
-	inc_syscr(current);
-	inc_syscw(current);
-	if (*ppos > max)
-		retval = -EOVERFLOW;
-
-fput_out:
-	fput_light(out_file, fput_needed_out);
-fput_in:
-	fput_light(in_file, fput_needed_in);
-out:
-	return retval;
-}
-
-SYSCALL_DEFINE4(sendfile, int, out_fd, int, in_fd, off_t __user *, offset, size_t, count)
-{
-	loff_t pos;
-	off_t off;
-	ssize_t ret;
-
-	if (offset) {
-		if (unlikely(get_user(off, offset)))
-			return -EFAULT;
-		pos = off;
-		ret = do_sendfile(out_fd, in_fd, &pos, count, MAX_NON_LFS);
-		if (unlikely(put_user(pos, offset)))
-			return -EFAULT;
-		return ret;
-	}
-
-	return do_sendfile(out_fd, in_fd, NULL, count, 0);
-}
-
-SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd, loff_t __user *, offset, size_t, count)
-{
-	loff_t pos;
-	ssize_t ret;
-
-	if (offset) {
-		if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t))))
-			return -EFAULT;
-		ret = do_sendfile(out_fd, in_fd, &pos, count, 0);
-		if (unlikely(put_user(pos, offset)))
-			return -EFAULT;
-		return ret;
-	}
-
-	return do_sendfile(out_fd, in_fd, NULL, count, 0);
-}