tjh.dev
+12
-3
arch/x86/kernel/i387.c
+12
-3
arch/x86/kernel/i387.c
···
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void __kernel_fpu_end(void)
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{
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if (use_eager_fpu())
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math_state_restore();
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else
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if (use_eager_fpu()) {
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/*
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* For eager fpu, most the time, tsk_used_math() is true.
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* Restore the user math as we are done with the kernel usage.
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* At few instances during thread exit, signal handling etc,
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* tsk_used_math() is false. Those few places will take proper
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* actions, so we don't need to restore the math here.
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*/
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if (likely(tsk_used_math(current)))
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math_state_restore();
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} else {
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stts();
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}
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}
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EXPORT_SYMBOL(__kernel_fpu_end);
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