if (unlikely(*pos < 0))
return -EINVAL;
- if (unlikely(file->f_error)) {
- int err = file->f_error;
- file->f_error = 0;
- return err;
- }
-
if (!isblk) {
/* FIXME: this is for backwards compatibility with 2.4 */
if (file->f_flags & O_APPEND)
do {
unsigned long index;
unsigned long offset;
+ unsigned long maxlen;
size_t copied;
offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
* same page as we're writing to, without it being marked
* up-to-date.
*/
- fault_in_pages_readable(buf, bytes);
+ maxlen = cur_iov->iov_len - iov_base;
+ if (maxlen > bytes)
+ maxlen = bytes;
+ fault_in_pages_readable(buf, maxlen);
page = __grab_cache_page(mapping,index,&cached_page,&lru_pvec);
if (!page) {
filemap_set_next_iovec(&cur_iov,
&iov_base, status);
buf = cur_iov->iov_base + iov_base;
+ } else {
+ iov_base += status;
}
}
}