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authorTejun Heo <tj@kernel.org>2010-12-18 16:28:55 +0100
committerTejun Heo <tj@kernel.org>2010-12-30 12:20:28 +0100
commit0a3aee0da4402aa19b66e458038533c896fb80c6 (patch)
treeb2c29c0b18218b76cc0e7ed9866a2c12d1e22e3a /arch/x86/include/asm/debugreg.h
parentvmstat: User per cpu atomics to avoid interrupt disable / enable (diff)
downloadlinux-0a3aee0da4402aa19b66e458038533c896fb80c6.tar.xz
linux-0a3aee0da4402aa19b66e458038533c896fb80c6.zip
x86: Use this_cpu_ops to optimize code
Go through x86 code and replace __get_cpu_var and get_cpu_var instances that refer to a scalar and are not used for address determinations. Cc: Yinghai Lu <yinghai@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/debugreg.h')
-rw-r--r--arch/x86/include/asm/debugreg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
index b81002f23614..078ad0caefc6 100644
--- a/arch/x86/include/asm/debugreg.h
+++ b/arch/x86/include/asm/debugreg.h
@@ -94,7 +94,7 @@ static inline void hw_breakpoint_disable(void)
static inline int hw_breakpoint_active(void)
{
- return __get_cpu_var(cpu_dr7) & DR_GLOBAL_ENABLE_MASK;
+ return __this_cpu_read(cpu_dr7) & DR_GLOBAL_ENABLE_MASK;
}
extern void aout_dump_debugregs(struct user *dump);