[ofa-general] [PATCH] IB/mlx4: Use pgprot_writecombine() for BlueFlame pages

[Or Gerlitz]

Roland Dreier wrote:
> This should bring mainline kernel small message latency to the same
> level that OFED gets with the PAT support it hacks in.

Doing some quick benchmarking today, I couldn't see a notable latency difference before and after the patch, but maybe Yosi would be able to dig deeper and find something...

Or.