diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2013-12-19 11:58:16 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-12-19 11:58:16 -0800 |
| commit | 7e98b71920464b8d15fa95c74366416cd3c88861 (patch) | |
| tree | e33e2af9f6a1813490aa686619de72c67b159e81 /arch/powerpc/lib/copyuser_64.S | |
| parent | 16824255394f55adf31b9a96a9965d8c15bdac4c (diff) | |
x86, idle: Use static_cpu_has() for CLFLUSH workaround, add barriers
Use static_cpu_has() to conditionalize the CLFLUSH workaround, and add
memory barriers around it since the documentation is explicit that
CLFLUSH is only ordered with respect to MFENCE.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Len Brown <len.brown@intel.com>
Link: http://lkml.kernel.org/r/CA%2B55aFzGxcML7j8CEvQPYzh0W81uVoAAVmGctMOUZ7CZ1yYd2A@mail.gmail.com
Diffstat (limited to 'arch/powerpc/lib/copyuser_64.S')
0 files changed, 0 insertions, 0 deletions