Re: [PATCH 11/11] blkcg: implement per-blkg request allocation

Jeff Moyer
2012-04-27T14:54:14Z

Tejun Heo <tj@kernel.org> writes:

> This patch implements per-blkg request_list. Each blkg has its own
> request_list and any IO allocates its request from the matching blkg
> making blkcgs completely isolated in terms of request allocation.

So, nr_requests is now actually nr_requests * # of blk cgroups. Is that
right? Are you at all concerned about the amount of memory that can be
tied up as the number of cgroups increases?

Cheers,
Jeff