Hugh's much-discussed check for releasing pages which are still on the LRU.
=====================================
--- 2.4.19-pre3/mm/page_alloc.c~aa-160-lru_release_check Tue Mar 19 19:49:02 2002
+++ 2.4.19-pre3-akpm/mm/page_alloc.c Tue Mar 19 19:49:02 2002
@@ -102,8 +102,11 @@ static void __free_pages_ok (struct page
/* Yes, think what happens when other parts of the kernel take
* a reference to a page in order to pin it for io. -ben
*/
- if (PageLRU(page))
+ if (PageLRU(page)) {
+ if (unlikely(in_interrupt()))
+ BUG();
lru_cache_del(page);
+ }
if (page->buffers)
BUG();
-
-
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This archive was generated by hypermail 2b29 : Sat Mar 23 2002 - 22:00:20 EST