On Wed, Jun 17, 2015 at 09:17:40AM -0400, Mikulas Patocka wrote: [..] > > > > > <program_id> > > > > > An optional parameter. A name that uniquely identifies > > > > > the userspace owner of the range. This groups ranges together > > > > > > > > We are adding these new parameters/arguments in between existing parameters. > > > > Will it break any of the existing scritps. Will it make sense to add these > > > > new parameters at the end. It is more intuitive. > > > > > > It could break someone who uses number as program_id - but there is no > > > program on Linux with name that is a pure number. > > > > > > > There does not seem to be any restriction that program_id has to be > > a valid program name. It could be any string. I used a program id > > of 25 and it works. > > The purpose of program_id is that different programs don't step over each > other's statistics. Your program should use the program name as program_id > to make sure that it doesn't collide. I think it would be reasonable use "pid" as program_id when different instance of same program want to keep track of different regions of disk. Thanks Vivek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
