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

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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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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;