[PATCH] x86_64: Remove obsolete ARCH_HAS_ATOMIC_UNSIGNED and page_flags_t

Has been introduced for x86-64 at some point to save memory
in struct page, but has been obsolete for some time. Just
remove it.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index da7a829f8561..57fc99c67c31 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -455,7 +455,7 @@ extern struct pglist_data contig_page_data;
 #include <asm/sparsemem.h>
 #endif
 
-#if BITS_PER_LONG == 32 || defined(ARCH_HAS_ATOMIC_UNSIGNED)
+#if BITS_PER_LONG == 32
 /*
  * with 32 bit page->flags field, we reserve 9 bits for node/zone info.
  * there are 4 zones (3 bits) and this leaves 9-3=6 bits for nodes.