~hc/RK356X_SDK_RELEASE.git

..	..	@@ -688,11 +688,17 @@
688	688
689	689	spin_lock(&pgd_lock);
690	690	/*
	691	+ * Keep preemption disabled after __flush_tlb_all() which expects not be
	692	+ * preempted during the flush of the local TLB.
	693	+ */
	694	+ preempt_disable();
	695	+ /*
691	696	* Check for races, another CPU might have split this page
692	697	* up for us already:
693	698	*/
694	699	tmp = _lookup_address_cpa(cpa, address, &level);
695	700	if (tmp != kpte) {
	701	+ preempt_enable();
696	702	spin_unlock(&pgd_lock);
697	703	return 1;
698	704	}
..	..	@@ -726,6 +732,7 @@
726	732	break;
727	733
728	734	default:
	735	+ preempt_enable();
729	736	spin_unlock(&pgd_lock);
730	737	return 1;
731	738	}
..	..	@@ -764,6 +771,7 @@
764	771	* going on.
765	772	*/
766	773	__flush_tlb_all();
	774	+ preempt_enable();
767	775	spin_unlock(&pgd_lock);
768	776
769	777	return 0;