[PATCH 0/6] x86/fpu: don't abuse x86_task_fpu(PF_USER_WORKER) in .regset_get() paths

[Oleg Nesterov]

Sorry, I have no idea how to test these changes, please review. Especially
4/6 and 5/6, I don't really understand shstk.c.

If you are fine with these changes, I'll try to update the fpregs_soft_get()
and user_regset.set() paths as well.

Oleg.
---

 arch/x86/include/asm/shstk.h |  8 ++++----
 arch/x86/kernel/fpu/regset.c | 46 ++++++++++++++++++++++++++------------------
 arch/x86/kernel/fpu/xstate.c | 12 ++++++------
 arch/x86/kernel/fpu/xstate.h |  4 ++--
 arch/x86/kernel/process.c    |  2 +-
 arch/x86/kernel/process_64.c |  2 +-
 arch/x86/kernel/shstk.c      | 19 +++++++++++++-----
 7 files changed, 55 insertions(+), 38 deletions(-)