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authorJan Beulich <JBeulich@novell.com>2010-04-21 11:08:14 -0400
committerH. Peter Anvin <hpa@zytor.com>2010-04-28 20:15:47 -0400
commit5967ed87ade85a421ef814296c3c7f182b08c225 (patch)
tree16d08b1e34308390d189ddc52e7c4e25cc841e41 /arch/x86/include
parent402af0d7c692ddcfa2333e93d3f275ebd0487926 (diff)
x86-64: Reduce SMP locks table size
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>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/alternative-asm.h4
-rw-r--r--arch/x86/include/asm/alternative.h4
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index b97f786a48d5..a63a68be1cce 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -6,8 +6,8 @@
6 .macro LOCK_PREFIX 6 .macro LOCK_PREFIX
71: lock 71: lock
8 .section .smp_locks,"a" 8 .section .smp_locks,"a"
9 _ASM_ALIGN 9 .balign 4
10 _ASM_PTR 1b 10 .long 1b - .
11 .previous 11 .previous
12 .endm 12 .endm
13#else 13#else
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index b09ec55650b3..714bf2417284 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -30,8 +30,8 @@
30#ifdef CONFIG_SMP 30#ifdef CONFIG_SMP
31#define LOCK_PREFIX \ 31#define LOCK_PREFIX \
32 ".section .smp_locks,\"a\"\n" \ 32 ".section .smp_locks,\"a\"\n" \
33 _ASM_ALIGN "\n" \ 33 ".balign 4\n" \
34 _ASM_PTR "661f\n" /* address */ \ 34 ".long 661f - .\n" /* offset */ \
35 ".previous\n" \ 35 ".previous\n" \
36 "661:\n\tlock; " 36 "661:\n\tlock; "
37 37