referenced && page_mapping_inuse(page))
goto activate_locked;
-#ifdef CONFIG_SWAP
/*
* Anonymous process memory has backing store?
* Try to allocate it some swap space here.
if (PageAnon(page) && !PageSwapCache(page)) {
if (!(sc->gfp_mask & __GFP_IO))
goto keep_locked;
- switch (try_to_munlock(page)) {
- case SWAP_FAIL: /* shouldn't happen */
- case SWAP_AGAIN:
- goto keep_locked;
- case SWAP_MLOCK:
- goto cull_mlocked;
- case SWAP_SUCCESS:
- ; /* fall thru'; add to swap cache */
- }
- if (!add_to_swap(page, GFP_ATOMIC))
+ if (!add_to_swap(page))
goto activate_locked;
may_enter_fs = 1;
}
-#endif /* CONFIG_SWAP */
mapping = page_mapping(page);
continue;
cull_mlocked:
+ if (PageSwapCache(page))
+ try_to_free_swap(page);
unlock_page(page);
putback_lru_page(page);
continue;
activate_locked:
/* Not a candidate for swapping, so reclaim swap space. */
if (PageSwapCache(page) && vm_swap_full())
- remove_exclusive_swap_page_ref(page);
+ try_to_free_swap(page);
VM_BUG_ON(PageActive(page));
SetPageActive(page);
pgactivate++;
* This helps balance scan pressure between file and anonymous
* pages in get_scan_ratio.
*/
- zone->recent_rotated[!!file] += pgmoved;
+ if (scan_global_lru(sc))
+ zone->recent_rotated[!!file] += pgmoved;
/*
* Move the pages to the [file or anon] inactive list.
unsigned long anon_prio, file_prio;
unsigned long ap, fp;
- anon = zone_page_state(zone, NR_ACTIVE_ANON) +
- zone_page_state(zone, NR_INACTIVE_ANON);
- file = zone_page_state(zone, NR_ACTIVE_FILE) +
- zone_page_state(zone, NR_INACTIVE_FILE);
- free = zone_page_state(zone, NR_FREE_PAGES);
-
/* If we have no swap space, do not bother scanning anon pages. */
if (nr_swap_pages <= 0) {
percent[0] = 0;
return;
}
+ anon = zone_page_state(zone, NR_ACTIVE_ANON) +
+ zone_page_state(zone, NR_INACTIVE_ANON);
+ file = zone_page_state(zone, NR_ACTIVE_FILE) +
+ zone_page_state(zone, NR_INACTIVE_FILE);
+ free = zone_page_state(zone, NR_FREE_PAGES);
+
/* If we have very few page cache pages, force-scan anon pages. */
if (unlikely(file + free <= zone->pages_high)) {
percent[0] = 100;