D26991.diff
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	diff --git a/sys/arm64/arm64/vm_machdep.c b/sys/arm64/arm64/vm_machdep.c
	--- a/sys/arm64/arm64/vm_machdep.c
	+++ b/sys/arm64/arm64/vm_machdep.c
	@@ -143,12 +143,14 @@

	frame = td->td_frame;

	- switch (error) {
	- case 0:
	+ if (__predict_true(error == 0)) {
	frame->tf_x[0] = td->td_retval[0];
	frame->tf_x[1] = td->td_retval[1];
	frame->tf_spsr &= ~PSR_C; /* carry bit */
	- break;
	+ return;
	+ }
	+
	+ switch (error) {
	case ERESTART:
	frame->tf_elr -= 4;
	break;