Hello, Kamezawa. On Tue, Nov 20, 2012 at 04:05:51PM +0900, Kamezawa Hiroyuki wrote: > BTW, css's ID was limited to 65535 to be encoded in 2bytes. > If we use INT, this will increase size of swap_cgroup. > (2bytes per page => 4bytes per page) It's preallocated at swapon() > because allocating memory dynamically when we swap a memory is not good. > > Do we really need 4bytes for ID ? If so, swap_cgroup should be totally re-designed. That's a memcg restriction which shouldn't have been imposed on cgroup core from the beginning. What memcg should do is rejecting to become online from ->css_onilne() if cgrp->id is out of the range it can handle. Thanks. -- tejun _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
