X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2FKconfig;h=4e9937ac3529ae391762f5071e938f8ac5497077;hb=839b9685e80592809d6dfdd865986cd1b5ddc2fb;hp=fc644c5c065d2b5a2b05864b23b8e78385f6753b;hpb=802f192e4a600f7ef84ca25c8b818c8830acef5a;p=linux-2.6

diff --git a/mm/Kconfig b/mm/Kconfig
index fc644c5c06..4e9937ac35 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -90,11 +90,24 @@ config HAVE_MEMORY_PRESENT
 	def_bool y
 	depends on ARCH_HAVE_MEMORY_PRESENT || SPARSEMEM
 
+#
+# SPARSEMEM_EXTREME (which is the default) does some bootmem
+# allocations when memory_present() is called.  If this can not
+# be done on your architecture, select this option.  However,
+# statically allocating the mem_section[] array can potentially
+# consume vast quantities of .bss, so be careful.
+#
+# This option will also potentially produce smaller runtime code
+# with gcc 3.4 and later.
+#
+config SPARSEMEM_STATIC
+	def_bool n
+
 #
 # Architectecture platforms which require a two level mem_section in SPARSEMEM
 # must select this option. This is usually for architecture platforms with
 # an extremely sparse physical address space.
 #
-config ARCH_SPARSEMEM_EXTREME
-	def_bool n
-	depends on SPARSEMEM && 64BIT
+config SPARSEMEM_EXTREME
+	def_bool y
+	depends on SPARSEMEM && !SPARSEMEM_STATIC