Commit 3f6a0bce authored Apr 03, 2015 by Ingo Molnar

x86/fpu: Rename init_thread_xstate() to fpstate_xstate_init_size()

So init_thread_xstate() is a misnomer in that it's not really related to a specific
thread - it determines, once during initial bootup, the size of the xstate context.

Also improve the comments.

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 3a9c4b0d

arch/x86/kernel/i387.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -158,7 +158,7 @@ static void mxcsr_feature_mask_init(void)
		mxcsr_feature_mask &= mask;
		}

		static void init_thread_xstate(void)
		static void fpstate_xstate_init_size(void)
		{
		/*
		* Note that xstate_size might be overwriten later during
		@@ -216,11 +216,11 @@ void fpu__cpu_init(void)
		write_cr0(cr0);

		/*
		* init_thread_xstate is only called once to avoid overriding
		* xstate_size during boot time or during CPU hotplug.
		* fpstate_xstate_init_size() is only called once, to avoid overriding
		* 'xstate_size' during (secondary CPU) bootup or during CPU hotplug.
		*/
		if (xstate_size == 0)
		init_thread_xstate();
		fpstate_xstate_init_size();

		mxcsr_feature_mask_init();
		xsave_init();