From: Nick Piggin <nickpiggin@yahoo.com.au>

This atomic operation is superfluous: the pte will be added with the
referenced bit set, and the page will be referenced through this mapping after
the page fault handler returns anyway.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 mm/memory.c |    1 -
 1 files changed, 1 deletion(-)

diff -puN mm/memory.c~mm-pfault-opt mm/memory.c
--- devel/mm/memory.c~mm-pfault-opt	2005-12-22 05:08:51.000000000 -0800
+++ devel-akpm/mm/memory.c	2005-12-22 05:08:51.000000000 -0800
@@ -1977,7 +1977,6 @@ static int do_anonymous_page(struct mm_s
 			goto release;
 		inc_mm_counter(mm, anon_rss);
 		lru_cache_add_active(page);
-		SetPageReferenced(page);
 		page_add_new_anon_rmap(page, vma, address);
 	} else {
 		/* Map the ZERO_PAGE - vm_page_prot is readonly */
_