On 01/13/2016 12:48 PM, Peter Zijlstra wrote:

On Wed, Jan 13, 2016 at 11:02:35AM -0800, Leonid Yegoshin wrote:

quoted

I ask HW team about it but I have a question - has it any relationship with
replacing MIPS SYNC with lightweight SYNCs (SYNC_WMB etc)?

Of course. If you cannot explain the semantics of the primitives you
introduce, how can we judge the patch.

You missed a point - it is a question about replacement of SYNC with 
lightweight primitives. It is NOT a question about multithread system 
behavior without any SYNC. The answer on a latest Will's question lies 
in different area.

- Leonid.