On Thu, 27 Feb 2003, Andrew Morton wrote:
>
> No, it is still wrong. Mapped cannot exceed MemTotal.
It needs this in addition to Dave's patch from yesterday:
--- 2.5.63-objfix-1/mm/rmap.c Thu Feb 27 23:37:28 2003
+++ 2.5.63-objfix-2/mm/rmap.c Fri Feb 28 12:33:58 2003
@@ -349,7 +349,8 @@
BUG();
if (atomic_read(&page->pte.mapcount) == 0)
BUG();
- atomic_dec(&page->pte.mapcount);
+ if (atomic_dec_and_test(&page->pte.mapcount))
+ dec_page_state(nr_mapped);
return;
}
-
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