From: Andrew Morton <akpm@linux-foundation.org>

Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/swap.c |    2 ++
 1 files changed, 2 insertions(+)

diff -puN mm/swap.c~mm-only-free-swap-space-of-reactivated-pages-debug mm/swap.c
--- a/mm/swap.c~mm-only-free-swap-space-of-reactivated-pages-debug
+++ a/mm/swap.c
@@ -479,6 +479,8 @@ void pagevec_swap_free(struct pagevec *p
 			if (PageSwapCache(page))
 				remove_exclusive_swap_page(page);
 			unlock_page(page);
+			if (printk_ratelimit())
+				printk("kswapd freed a swap space\n");
 		}
 	}
 }
_