RE: [PATCH 5/8] x86/mmu: Add mm-based PASID refcounting

From: Luck, Tony
Date: Wed Sep 29 2021 - 12:51:24 EST


> There is zero requirement to look at TIF_NEED_FPU_LOAD or
> fpregs_state_valid() simply because the #GP comes straight from user
> space which means the FPU registers contain the current tasks user space
> state.

Just to double confirm ... there is no point in the #GP handler up to this point
where pre-emption can occur?

-Tony