do {
page = list_next_entry(page, lru);
- map = kmap_atomic(page);
+ map = kmap_local_page(page);
tmp_count = map[offset];
- kunmap_atomic(map);
+ kunmap_local(map);
count += (tmp_count & ~COUNT_CONTINUED) * n;
n *= (SWAP_CONT_MAX + 1);
if (!(count & COUNT_CONTINUED))
goto out_unlock_cont;
- map = kmap_atomic(list_page) + offset;
+ map = kmap_local_page(list_page) + offset;
count = *map;
- kunmap_atomic(map);
+ kunmap_local(map);
/*
* If this continuation count now has some space in it,
spin_lock(&si->cont_lock);
offset &= ~PAGE_MASK;
page = list_next_entry(head, lru);
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
if (count == SWAP_MAP_MAX) /* initial increment from swap_map */
goto init_map; /* jump over SWAP_CONT_MAX checks */
* Think of how you add 1 to 999
*/
while (*map == (SWAP_CONT_MAX | COUNT_CONTINUED)) {
- kunmap_atomic(map);
+ kunmap_local(map);
page = list_next_entry(page, lru);
BUG_ON(page == head);
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
}
if (*map == SWAP_CONT_MAX) {
- kunmap_atomic(map);
+ kunmap_local(map);
page = list_next_entry(page, lru);
if (page == head) {
ret = false; /* add count continuation */
goto out;
}
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
init_map: *map = 0; /* we didn't zero the page */
}
*map += 1;
- kunmap_atomic(map);
+ kunmap_local(map);
while ((page = list_prev_entry(page, lru)) != head) {
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
*map = COUNT_CONTINUED;
- kunmap_atomic(map);
+ kunmap_local(map);
}
ret = true; /* incremented */
*/
BUG_ON(count != COUNT_CONTINUED);
while (*map == COUNT_CONTINUED) {
- kunmap_atomic(map);
+ kunmap_local(map);
page = list_next_entry(page, lru);
BUG_ON(page == head);
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
}
BUG_ON(*map == 0);
*map -= 1;
if (*map == 0)
count = 0;
- kunmap_atomic(map);
+ kunmap_local(map);
while ((page = list_prev_entry(page, lru)) != head) {
- map = kmap_atomic(page) + offset;
+ map = kmap_local_page(page) + offset;
*map = SWAP_CONT_MAX | count;
count = COUNT_CONTINUED;
- kunmap_atomic(map);
+ kunmap_local(map);
}
ret = count == COUNT_CONTINUED;
}