Re: [PATCH 07/11] x86/pkeys: Drop the preempt-disable section

[Dave Hansen]

On 10/04/2018 07:05 AM, Sebastian Andrzej Siewior wrote:
> The fpu->initialized flag should not be changed underneath us. This might be a
> fallout during the removal of the LazyFPU support. The FPU is marked
> initialized as soon as the state has been set to an initial value. It does not
> signal if the CPU's FPU registers are loaded.

If this is true, then the check for fpu->initialized should also go away.

If we were paranoid, we might also add a WARN_ON_ONCE() to make sure our
assumption holds true.