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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>
This commit is contained in:
Thadeu Lima de Souza Cascardo 2010-02-09 21:38:45 -02:00 committed by Ingo Molnar
parent 39c662f60c
commit e808bae240
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kernel/setup.c
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@ -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;