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x86: Replace uses of current_cpu_data with this_cpu ops

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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>
This commit is contained in:
Tejun Heo
2010-12-18 16:30:05 +01:00
parent 0a3aee0da4
commit 7b543a5334
11 changed files with 28 additions and 29 deletions
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2
arch/x86/kernel/cpu/amd.c
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@@ -668,7 +668,7 @@ EXPORT_SYMBOL_GPL(amd_erratum_383);
bool cpu_has_amd_erratum(const int *erratum)
{
struct cpuinfo_x86 *cpu = &current_cpu_data;
struct cpuinfo_x86 *cpu = __this_cpu_ptr(&cpu_info);
int osvw_id = *erratum++;
u32 range;
u32 ms;