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x86/fpu: Use 'struct fpu' in fpu_copy()
Migrate this function to pure 'struct fpu' usage. 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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@ -227,15 +227,12 @@ EXPORT_SYMBOL_GPL(fpstate_free);
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* In the 'lazy' case we save to the source context, mark the FPU lazy
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* via stts() and copy the source context into the destination context.
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*/
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static void fpu_copy(struct task_struct *dst, struct task_struct *src)
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static void fpu_copy(struct fpu *dst_fpu, struct fpu *src_fpu)
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{
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struct fpu *dst_fpu = &dst->thread.fpu;
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struct fpu *src_fpu = &src->thread.fpu;
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WARN_ON(src != current);
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WARN_ON(src_fpu != ¤t->thread.fpu);
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if (use_eager_fpu()) {
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memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
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memset(&dst_fpu->state->xsave, 0, xstate_size);
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__save_fpu(dst_fpu);
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} else {
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fpu__save(src_fpu);
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@ -258,7 +255,7 @@ int fpu__copy(struct task_struct *dst, struct task_struct *src)
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if (err)
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return err;
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fpu_copy(dst, src);
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fpu_copy(dst_fpu, src_fpu);
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}
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return 0;
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}
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