[patch] mm: fix rss counter being incremented when unmapping

From: Björn Steinbrink
Date: Mon May 09 2005 - 07:31:01 EST


This patch fixes a bug introduced by the "mm counter operations through
macros" patch, which replaced a decrement operation in with an increment
macro in try_to_unmap_one().

Signed-off-by: Björn Steinbrink <B.Steinbrink@xxxxxx>

diff -NurpP --minimal linux-2.6.12-rc4/mm/rmap.c linux-2.6.12-rc4-fixed/mm/rmap.c
--- linux-2.6.12-rc4/mm/rmap.c 2005-05-08 17:53:49.000000000 +0200
+++ linux-2.6.12-rc4-fixed/mm/rmap.c 2005-05-09 13:38:03.000000000 +0200
@@ -586,7 +586,7 @@ static int try_to_unmap_one(struct page
dec_mm_counter(mm, anon_rss);
}

- inc_mm_counter(mm, rss);
+ dec_mm_counter(mm, rss);
page_remove_rmap(page);
page_cache_release(page);

-
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