diff options
author | Jan Beulich <JBeulich@novell.com> | 2010-04-21 11:08:14 -0400 |
---|---|---|
committer | H. Peter Anvin <hpa@zytor.com> | 2010-04-28 20:15:47 -0400 |
commit | 5967ed87ade85a421ef814296c3c7f182b08c225 (patch) | |
tree | 16d08b1e34308390d189ddc52e7c4e25cc841e41 /arch/x86/include | |
parent | 402af0d7c692ddcfa2333e93d3f275ebd0487926 (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.h | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/alternative.h | 4 |
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 |
7 | 1: lock | 7 | 1: 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 | ||