diff options
| author | Tejun Heo <tj@kernel.org> | 2010-12-18 16:30:05 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-12-30 12:22:03 +0100 |
| commit | 7b543a5334ff4ea2e3ad3b777fc23cdb8072a988 (patch) | |
| tree | 8fbdf5275411190f78f3bdee3c40e87285bf8e30 /arch/x86/kernel/process.c | |
| parent | 0a3aee0da4402aa19b66e458038533c896fb80c6 (diff) | |
| download | blackbird-op-linux-7b543a5334ff4ea2e3ad3b777fc23cdb8072a988.tar.gz blackbird-op-linux-7b543a5334ff4ea2e3ad3b777fc23cdb8072a988.zip | |
x86: Replace uses of current_cpu_data with this_cpu ops
Replace all uses of current_cpu_data with this_cpu operations on the
per cpu structure cpu_info. The scala accesses are replaced with the
matching this_cpu ops which results in smaller and more efficient
code.
In the long run, it might be a good idea to remove cpu_data() macro
too and use per_cpu macro directly.
tj: updated description
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 57d1868a86aa..dae1c0766d9a 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -445,7 +445,7 @@ void mwait_idle_with_hints(unsigned long ax, unsigned long cx) { trace_power_start(POWER_CSTATE, (ax>>4)+1, smp_processor_id()); if (!need_resched()) { - if (cpu_has(¤t_cpu_data, X86_FEATURE_CLFLUSH_MONITOR)) + if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR)) clflush((void *)¤t_thread_info()->flags); __monitor((void *)¤t_thread_info()->flags, 0, 0); @@ -460,7 +460,7 @@ static void mwait_idle(void) { if (!need_resched()) { trace_power_start(POWER_CSTATE, 1, smp_processor_id()); - if (cpu_has(¤t_cpu_data, X86_FEATURE_CLFLUSH_MONITOR)) + if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR)) clflush((void *)¤t_thread_info()->flags); __monitor((void *)¤t_thread_info()->flags, 0, 0); |
