[PATCH] locked page handling in shrink_cache() : revised

Whenever the shrink_cache wakes up after a laundered page in unlocked, it should
move that page to the end of inactive list so that
the page can be freed immediately and shrink_cache dosen't have to wait for
complete list scan before freeing this page.

The patch is created against standard redhat 7.1 distribution 2.4.16 kernel.
Let me know if I need to create it for a different kernel release.

regards
Amol

--- vmscan_orig.c   Mon Jan  7 11:47:43 2002
+++ vmscan.c   Mon Jan  7 11:49:07 2002
@@ -387,6 +387,8 @@
                    wait_on_page(page);
                    page_cache_release(page);
                    spin_lock(&pagemap_lru_lock);
+                   list_del(&page->lru);
+                   list_add(&page->lru,inactive_list.prev);
               }
               continue;
          }