Commit ebdea638 authored by Xiao Guangrong's avatar Xiao Guangrong Committed by Avi Kivity
Browse files

KVM: MMU: cleanup for __mmu_unsync_walk() 



Decrease sp->unsync_children after clear unsync_child_bitmap bit

Signed-off-by: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent be71e061

arch/x86/kvm/mmu.c

+4 −4
Original line number Diff line number Diff line
@@ -1160,9 +1160,11 @@ static int __mmu_unsync_walk(struct kvm_mmu_page *sp, 
					return -ENOSPC;



				ret = __mmu_unsync_walk(child, pvec);

				if (!ret)

				if (!ret) {

					__clear_bit(i, sp->unsync_child_bitmap);

				else if (ret > 0)

					sp->unsync_children--;

					WARN_ON((int)sp->unsync_children < 0);

				} else if (ret > 0)

					nr_unsync_leaf += ret;

				else

					return ret;
@@ -1176,8 +1178,6 @@ static int __mmu_unsync_walk(struct kvm_mmu_page *sp, 
		}

	}



	if (find_first_bit(sp->unsync_child_bitmap, 512) == 512)

		sp->unsync_children = 0;



	return nr_unsync_leaf;

}