Commit e808bae2 authored Feb 09, 2010 by Thadeu Lima de Souza Cascardo Committed by Ingo Molnar Feb 25, 2010

x86: Do not reserve brk for DMI if it's not going to be used



This will save 64K bytes from memory when loading linux if DMI is
disabled, which is good for embedded systems.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
LKML-Reference: <1265758732-19320-1-git-send-email-cascardo@holoscopio.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

parent 39c662f6

arch/x86/kernel/setup.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -121,7 +121,9 @@
		unsigned long max_low_pfn_mapped;
		unsigned long max_pfn_mapped;

		#ifdef CONFIG_DMI
		RESERVE_BRK(dmi_alloc, 65536);
		#endif

		unsigned int boot_cpu_id __read_mostly;