On Tue, Nov 26, 2019 at 03:58:45PM +0800, Herbert Xu wrote: > On Tue, Nov 26, 2019 at 12:32:38AM -0500, Daniel Jordan wrote: > > > > I think it's possible for a task in padata_do_parallel() racing with another in > > padata_replace() to use a pd after free. The synchronize_rcu() comes after the > > pd_old->refcnt's are dec'd. > > Thanks. I've fixed this as well as the CPU mask issue you identified > earlier. I spent some time reviewing and testing this today, and the changes to padata.h/c look fine to me. Daniel
