On Sun, Jun 25, 2023 at 04:01:38PM +0000, Chuck Lever III wrote: > Both wq_pool_mutex and copy_workqueue_attrs() are static, so having > only apply_workqueue_attrs() is not yet enough to carry this off > in workqueue consumers such as sunrpc.ko. > > It looks like padata_setup_cpumasks() for example is holding the > CPU read lock, but it doesn't take the wq_pool_mutex. > apply_wqattrs_prepare() has a "lockdep_assert_held(&wq_pool_mutex);" . > > I can wait for a v3 of this series so you can construct the public > API the way you prefer. Ah, indeed. That API isn't really useable right now. It's gonna be a while before the affinity scope patches are applied. I'll fix up the apply interface afterwards. Thanks. -- tejun
