Hi Sergey, On Fri, Oct 16, 2020 at 09:25:47AM +0900, Sergey Senozhatsky wrote: > On (20/10/12 00:14), Minchan Kim wrote: > > > > With the command, zram writeback idle pages from memory to the storage. > > > > +If admin want to write a specific page in zram device to backing device, > > +they could write the page index into the interface. > > + > > + echo 1251 > /sys/block/zramX/writeback > > + > > May be we can make it more explicit? > > echo "page_index=123" > /sys/block/zramX/writeback > > Just in case of future extensions. E.g. someone might want to > have something like > > echo "idle_nr=123" > /sys/block/zramX/writeback > > which would write_back 123 idle pages max. > > -ss
Make sense. I will use echo "block_index" since page size could be changed later(e.g., some pages are 4K, some are THP). I will revise it at next spin. Thanks, Sergey!
