On Sat, Apr 11, 2020 at 06:11:56PM +0800, qiwuchen55@xxxxxxxxx wrote: > 1) Simplify the code of initializing some variables. > - unsigned long scan, total_scan, nr_pages; > + unsigned long scan = 0, total_scan = 0, nr_pages; > > - total_scan = 0; > - scan = 0; I do not find this to be a simplification.