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[PATCH] x86_64: Remove obsolete ARCH_HAS_ATOMIC_UNSIGNED and page_flags_t

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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>
This commit is contained in:
Andi Kleen
2005-11-05 17:25:53 +01:00
committed by Linus Torvalds
parent 1dff7f3db5
commit 07808b74e7
4 changed files with 5 additions and 11 deletions
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2
include/linux/mmzone.h
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@@ -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.