x86/fpu: Optimize fpu_copy()
Optimize fpu_copy() a bit by expanding the ->fpstate_active == 1 portion of fpu__save() into it. ( The main purpose of this change is to enable another, larger optimization that will be done in the next patch. ) Reviewed-by:Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Ingo Molnar <mingo@kernel.org>
parent
48c4717f
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