struct page *page;
char *kaddr;
char *dst = (char *)dstv;
- size_t start_offset = offset_in_page(eb->start);
- unsigned long i = (start_offset + start) >> PAGE_SHIFT;
+ unsigned long i = start >> PAGE_SHIFT;
if (start + len > eb->len) {
WARN(1, KERN_ERR "btrfs bad mapping eb start %llu len %lu, wanted %lu %lu\n",
return;
}
- offset = offset_in_page(start_offset + start);
+ offset = offset_in_page(start);
while (len > 0) {
page = eb->pages[i];
struct page *page;
char *kaddr;
char __user *dst = (char __user *)dstv;
- size_t start_offset = offset_in_page(eb->start);
- unsigned long i = (start_offset + start) >> PAGE_SHIFT;
+ unsigned long i = start >> PAGE_SHIFT;
int ret = 0;
WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);
- offset = offset_in_page(start_offset + start);
+ offset = offset_in_page(start);
while (len > 0) {
page = eb->pages[i];
struct page *page;
char *kaddr;
char *ptr = (char *)ptrv;
- size_t start_offset = offset_in_page(eb->start);
- unsigned long i = (start_offset + start) >> PAGE_SHIFT;
+ unsigned long i = start >> PAGE_SHIFT;
int ret = 0;
WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);
- offset = offset_in_page(start_offset + start);
+ offset = offset_in_page(start);
while (len > 0) {
page = eb->pages[i];
struct page *page;
char *kaddr;
char *src = (char *)srcv;
- size_t start_offset = offset_in_page(eb->start);
- unsigned long i = (start_offset + start) >> PAGE_SHIFT;
+ unsigned long i = start >> PAGE_SHIFT;
WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);
- offset = offset_in_page(start_offset + start);
+ offset = offset_in_page(start);
while (len > 0) {
page = eb->pages[i];
size_t offset;
struct page *page;
char *kaddr;
- size_t start_offset = offset_in_page(eb->start);
- unsigned long i = (start_offset + start) >> PAGE_SHIFT;
+ unsigned long i = start >> PAGE_SHIFT;
WARN_ON(start > eb->len);
WARN_ON(start + len > eb->start + eb->len);
- offset = offset_in_page(start_offset + start);
+ offset = offset_in_page(start);
while (len > 0) {
page = eb->pages[i];
size_t offset;
struct page *page;
char *kaddr;
- size_t start_offset = offset_in_page(dst->start);
- unsigned long i = (start_offset + dst_offset) >> PAGE_SHIFT;
+ unsigned long i = dst_offset >> PAGE_SHIFT;
WARN_ON(src->len != dst_len);
- offset = offset_in_page(start_offset + dst_offset);
+ offset = offset_in_page(dst_offset);
while (len > 0) {
page = dst->pages[i];
unsigned long *page_index,
size_t *page_offset)
{
- size_t start_offset = offset_in_page(eb->start);
size_t byte_offset = BIT_BYTE(nr);
size_t offset;
* the bitmap item in the extent buffer + the offset of the byte in the
* bitmap item.
*/
- offset = start_offset + start + byte_offset;
+ offset = start + byte_offset;
*page_index = offset >> PAGE_SHIFT;
*page_offset = offset_in_page(offset);
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
- size_t start_offset = offset_in_page(dst->start);
unsigned long dst_i;
unsigned long src_i;
}
while (len > 0) {
- dst_off_in_page = offset_in_page(start_offset + dst_offset);
- src_off_in_page = offset_in_page(start_offset + src_offset);
+ dst_off_in_page = offset_in_page(dst_offset);
+ src_off_in_page = offset_in_page(src_offset);
- dst_i = (start_offset + dst_offset) >> PAGE_SHIFT;
- src_i = (start_offset + src_offset) >> PAGE_SHIFT;
+ dst_i = dst_offset >> PAGE_SHIFT;
+ src_i = src_offset >> PAGE_SHIFT;
cur = min(len, (unsigned long)(PAGE_SIZE -
src_off_in_page));
size_t src_off_in_page;
unsigned long dst_end = dst_offset + len - 1;
unsigned long src_end = src_offset + len - 1;
- size_t start_offset = offset_in_page(dst->start);
unsigned long dst_i;
unsigned long src_i;
return;
}
while (len > 0) {
- dst_i = (start_offset + dst_end) >> PAGE_SHIFT;
- src_i = (start_offset + src_end) >> PAGE_SHIFT;
+ dst_i = dst_end >> PAGE_SHIFT;
+ src_i = src_end >> PAGE_SHIFT;
- dst_off_in_page = offset_in_page(start_offset + dst_end);
- src_off_in_page = offset_in_page(start_offset + src_end);
+ dst_off_in_page = offset_in_page(dst_end);
+ src_off_in_page = offset_in_page(src_end);
cur = min_t(unsigned long, len, src_off_in_page + 1);
cur = min(cur, dst_off_in_page + 1);