summaryrefslogtreecommitdiffstats
path: root/mm/swapfile.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/swapfile.c')
-rw-r--r--mm/swapfile.c31
1 files changed, 0 insertions, 31 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index b0c86e92f42c..457b10baef59 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -717,37 +717,6 @@ int free_swap_and_cache(swp_entry_t entry)
return p != NULL;
}
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-/**
- * mem_cgroup_count_swap_user - count the user of a swap entry
- * @ent: the swap entry to be checked
- * @pagep: the pointer for the swap cache page of the entry to be stored
- *
- * Returns the number of the user of the swap entry. The number is valid only
- * for swaps of anonymous pages.
- * If the entry is found on swap cache, the page is stored to pagep with
- * refcount of it being incremented.
- */
-int mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep)
-{
- struct page *page;
- struct swap_info_struct *p;
- int count = 0;
-
- page = find_get_page(&swapper_space, ent.val);
- if (page)
- count += page_mapcount(page);
- p = swap_info_get(ent);
- if (p) {
- count += swap_count(p->swap_map[swp_offset(ent)]);
- spin_unlock(&swap_lock);
- }
-
- *pagep = page;
- return count;
-}
-#endif
-
#ifdef CONFIG_HIBERNATION
/*
* Find the swap type that corresponds to given device (if any).