[PATCH 0/9] x86/fpu: remove lazy FPU mode & various FPU cleanups

[riel]

This series removes lazy FPU mode, and cleans up various bits
and pieces around the FPU code.

I have run this through a basic floating point test that involves
about 1.5 billion context switches and 45 minutes of swapping at
250MB/second.

This seems to tease out bugs fairly well, though I would not mind
an actual floating point test suite...