Re: [RFC V2 PATCH] kernfs: create raw version kernfs_path_len and kernfs_path

[Thomas Gleixner]

On Sat, 27 Feb 2016, Tejun Heo wrote:
> On Fri, Feb 26, 2016 at 01:47:39PM -0800, Yang Shi wrote:
> > Call synchronize_sched() when kernfs_node is updated since tracepoints are
> > protected by rcu_read_lock_sched.
> 
> Adding synchronize_sched() to operations which can be triggered from
> userland usually turns out to be problematic.  If this can't be solved
> any other way, I think the right thing to do is replacing the path
> with cgroup id as Christoph suggested.

Agreed. The path is not that important, right?

Thanks,

	tglx