Hello, On Wed, Sep 18, 2019 at 07:18:50AM +0200, Paolo Valente wrote: > A solution that both fulfills userspace request and doesn't break > anything for hypothetical users of the current interface already made > it to mainline, and Linus liked it too. It is: Linus didn't like it. The implementation was a bit nasty. That was why it became a subject in the first place. > 19e9da9e86c4 ("block, bfq: add weight symlink to the bfq.weight cgroup parameter") > > But it was then reverted on Tejun's request to do exactly what we > don't want do any longer now: > cf8929885de3 ("cgroup/bfq: revert bfq.weight symlink change") Note that the interface was wrong at the time too. > So, Jens, Tejun, can we please just revert that revert? I think presenting both io.weight and io.bfq.weight interfaces are probably the best course of action at this point but why does it have to be a symlink? What's wrong with just creating another file with the same backing function? Thanks. -- tejun