x86/fpu: Propagate once per boot quirk into fpu__init_system_xstate()

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Linearize the call sequence in xsave_init():

	fpu__init_system_xstate();
	fpu__init_cpu_xstate();

We do this by propagating the boot-once quirk into
fpu__init_system_xstate(). fpu__init_cpu_xstate() is
safe to be called multiple time.

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>

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This commit is contained in:

Ingo Molnar 2015-04-25 06:50:09 +02:00

parent e9dbfd673a

commit 62db6871ae

1 changed files with 7 additions and 8 deletions

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arch/x86/kernel/fpu/xsave.c

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