commit 09ae1f585e9def652cdb1d0484611d4f4dc2d5fd
author Christoph Lameter <clameter@sgi.com> Sat Feb 10 01:43:11 2007 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Sun Feb 11 10:51:18 2007 -0800
tree d759e739ae0a8ba72f20938d5ac8c19dac76acba
parent 4b51d66989218aad731a721b5b28c79bf5388c09

[PATCH] optional ZONE_DMA: optional ZONE_DMA for ia64

ZONE_DMA less operation for IA64 SGI platform

Disable ZONE_DMA for SGI SN2.  All memory is addressable by all devices and we
do not need any special memory pool.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/ia64/Kconfig

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 549ead5..db185f3 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -25,8 +25,8 @@
 	default y
 
 config ZONE_DMA
-	bool
-	default y
+	def_bool y
+	depends on !IA64_SGI_SN2
 
 config MMU
 	bool