[PATCH] mm: free_pages_and_swap_cache opt

[deliverable/linux.git] / mm / swap_state.c

diff --git a/mm/swap_state.c b/mm/swap_state.c
index dfd9a46755b84f7ffdcc97e6526d9a0665062b6c..fc2aecb70a95c9e3559a2d4d1d4a2ae0700ebc50 100644 (file)
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -14,6 +14,7 @@
 #include <linux/pagemap.h>
 #include <linux/buffer_head.h>
 #include <linux/backing-dev.h>
+#include <linux/pagevec.h>
 
 #include <asm/pgtable.h>
 
@@ -40,7 +41,6 @@ struct address_space swapper_space = {
        .i_mmap_nonlinear = LIST_HEAD_INIT(swapper_space.i_mmap_nonlinear),
        .backing_dev_info = &swap_backing_dev_info,
 };
-EXPORT_SYMBOL(swapper_space);
 
 #define INC_CACHE_INFO(x)      do { swap_cache_info.x++; } while (0)
 
@@ -273,12 +273,11 @@ void free_page_and_swap_cache(struct page *page)
  */
 void free_pages_and_swap_cache(struct page **pages, int nr)
 {
-       int chunk = 16;
        struct page **pagep = pages;
 
        lru_add_drain();
        while (nr) {
-               int todo = min(chunk, nr);
+               int todo = min(nr, PAGEVEC_SIZE);
                int i;
 
                for (i = 0; i < todo; i++)