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x86-64: Reduce SMP locks table size

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Reduce the SMP locks table size by using relative pointers instead of
absolute ones, thus cutting the table size by half.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <4BCF30FE020000780003B3B6@vpn.id2.novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Jan Beulich
2010-04-21 16:08:14 +01:00
committed by H. Peter Anvin
parent 402af0d7c6
commit 5967ed87ad
3 changed files with 29 additions and 24 deletions
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4
arch/x86/include/asm/alternative-asm.h
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@@ -6,8 +6,8 @@
.macro LOCK_PREFIX
1: lock
.section .smp_locks,"a"
_ASM_ALIGN
_ASM_PTR 1b
.balign 4
.long 1b - .
.previous
.endm
#else