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-rw-r--r--mm/frontswap.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/mm/frontswap.c b/mm/frontswap.c
index 1b24bdcb3197..c30eec536f03 100644
--- a/mm/frontswap.c
+++ b/mm/frontswap.c
@@ -327,15 +327,12 @@ EXPORT_SYMBOL(__frontswap_invalidate_area);
static unsigned long __frontswap_curr_pages(void)
{
- int type;
unsigned long totalpages = 0;
struct swap_info_struct *si = NULL;
assert_spin_locked(&swap_lock);
- for (type = swap_list.head; type >= 0; type = si->next) {
- si = swap_info[type];
+ plist_for_each_entry(si, &swap_active_head, list)
totalpages += atomic_read(&si->frontswap_pages);
- }
return totalpages;
}
@@ -347,11 +344,9 @@ static int __frontswap_unuse_pages(unsigned long total, unsigned long *unused,
int si_frontswap_pages;
unsigned long total_pages_to_unuse = total;
unsigned long pages = 0, pages_to_unuse = 0;
- int type;
assert_spin_locked(&swap_lock);
- for (type = swap_list.head; type >= 0; type = si->next) {
- si = swap_info[type];
+ plist_for_each_entry(si, &swap_active_head, list) {
si_frontswap_pages = atomic_read(&si->frontswap_pages);
if (total_pages_to_unuse < si_frontswap_pages) {
pages = pages_to_unuse = total_pages_to_unuse;
@@ -366,7 +361,7 @@ static int __frontswap_unuse_pages(unsigned long total, unsigned long *unused,
}
vm_unacct_memory(pages);
*unused = pages_to_unuse;
- *swapid = type;
+ *swapid = si->type;
ret = 0;
break;
}
@@ -413,7 +408,7 @@ void frontswap_shrink(unsigned long target_pages)
/*
* we don't want to hold swap_lock while doing a very
* lengthy try_to_unuse, but swap_list may change
- * so restart scan from swap_list.head each time
+ * so restart scan from swap_active_head each time
*/
spin_lock(&swap_lock);
ret = __frontswap_shrink(target_pages, &pages_to_unuse, &type);