x86/fpu: Use 'struct fpu' in fpu__save()
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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@ -100,7 +100,7 @@ static inline int user_has_fpu(void)
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return current->thread.fpu.has_fpu;
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}
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extern void fpu__save(struct task_struct *tsk);
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extern void fpu__save(struct fpu *fpu);
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#endif /* __ASSEMBLY__ */
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@ -142,11 +142,9 @@ static void __save_fpu(struct fpu *fpu)
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*
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* This only ever gets called for the current task.
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*/
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void fpu__save(struct task_struct *tsk)
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void fpu__save(struct fpu *fpu)
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{
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struct fpu *fpu = &tsk->thread.fpu;
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WARN_ON(tsk != current);
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WARN_ON(fpu != ¤t->thread.fpu);
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preempt_disable();
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if (fpu->has_fpu) {
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@ -240,7 +238,7 @@ static void fpu_copy(struct task_struct *dst, struct task_struct *src)
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memset(&dst->thread.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);
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fpu__save(src_fpu);
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memcpy(dst_fpu->state, src_fpu->state, xstate_size);
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}
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}
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@ -730,7 +730,7 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
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/*
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* Save the info for the exception handler and clear the error.
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*/
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fpu__save(task);
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fpu__save(&task->thread.fpu);
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task->thread.trap_nr = trapnr;
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task->thread.error_code = error_code;
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info.si_signo = SIGFPE;
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