/*
* file.c - NTFS kernel file operations. Part of the Linux-NTFS project.
*
- * Copyright (c) 2001-2006 Anton Altaparmakov
+ * Copyright (c) 2001-2007 Anton Altaparmakov
*
* This program/include file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
#include <linux/swap.h>
#include <linux/uio.h>
#include <linux/writeback.h>
-#include <linux/sched.h>
#include <asm/page.h>
#include <asm/uaccess.h>
{
if (sizeof(unsigned long) < 8) {
if (i_size_read(vi) > MAX_LFS_FILESIZE)
- return -EFBIG;
+ return -EOVERFLOW;
}
return generic_file_open(vi, filp);
}
volatile char c;
/* Set @end to the first byte outside the last page we care about. */
- end = (const char __user*)PAGE_ALIGN((ptrdiff_t __user)uaddr + bytes);
+ end = (const char __user*)PAGE_ALIGN((unsigned long)uaddr + bytes);
while (!__get_user(c, uaddr) && (uaddr += PAGE_SIZE, uaddr < end))
;
blocksize_bits = vol->sb->s_blocksize_bits;
u = 0;
do {
- struct page *page = pages[u];
+ page = pages[u];
+ BUG_ON(!page);
/*
* create_empty_buffers() will create uptodate/dirty buffers if
* the page is uptodate/dirty.
size_t bytes)
{
struct page **last_page = pages + nr_pages;
- char *kaddr;
+ char *addr;
size_t total = 0;
unsigned len;
int left;
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- kaddr = kmap_atomic(*pages, KM_USER0);
- left = __copy_from_user_inatomic(kaddr + ofs, buf, len);
- kunmap_atomic(kaddr, KM_USER0);
+ addr = kmap_atomic(*pages, KM_USER0);
+ left = __copy_from_user_inatomic(addr + ofs, buf, len);
+ kunmap_atomic(addr, KM_USER0);
if (unlikely(left)) {
/* Do it the slow way. */
- kaddr = kmap(*pages);
- left = __copy_from_user(kaddr + ofs, buf, len);
+ addr = kmap(*pages);
+ left = __copy_from_user(addr + ofs, buf, len);
kunmap(*pages);
if (unlikely(left))
goto err_out;
size_t *iov_ofs, size_t bytes)
{
struct page **last_page = pages + nr_pages;
- char *kaddr;
+ char *addr;
size_t copied, len, total = 0;
do {
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- kaddr = kmap_atomic(*pages, KM_USER0);
- copied = __ntfs_copy_from_user_iovec_inatomic(kaddr + ofs,
+ addr = kmap_atomic(*pages, KM_USER0);
+ copied = __ntfs_copy_from_user_iovec_inatomic(addr + ofs,
*iov, *iov_ofs, len);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(addr, KM_USER0);
if (unlikely(copied != len)) {
/* Do it the slow way. */
- kaddr = kmap(*pages);
- copied = __ntfs_copy_from_user_iovec_inatomic(kaddr + ofs,
+ addr = kmap(*pages);
+ copied = __ntfs_copy_from_user_iovec_inatomic(addr + ofs,
*iov, *iov_ofs, len);
/*
* Zero the rest of the target like __copy_from_user().
*/
- memset(kaddr + ofs + copied, 0, len - copied);
+ memset(addr + ofs + copied, 0, len - copied);
kunmap(*pages);
if (unlikely(copied != len))
goto err_out;
read_unlock_irqrestore(&ni->size_lock, flags);
BUG_ON(initialized_size != i_size);
if (end > initialized_size) {
- unsigned long flags;
-
write_lock_irqsave(&ni->size_lock, flags);
ni->initialized_size = end;
i_size_write(vi, end);
mounted filesystem. */
.mmap = generic_file_mmap, /* Mmap file. */
.open = ntfs_file_open, /* Open file. */
- .sendfile = generic_file_sendfile, /* Zero-copy data send with
+ .splice_read = generic_file_splice_read /* Zero-copy data send with
the data source being on
the ntfs partition. We do
not need to care about the