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

Hello,

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.

Thanks.