On Tue, Jun 4, 2019 at 9:25 PM Daniel Jordan <daniel.m.jordan@xxxxxxxxxx> wrote: > > On Sat, Jun 01, 2019 at 06:27:36PM -0400, Joel Fernandes (Google) wrote: > > list_for_each_entry_rcu now has support to check for RCU reader sections > > as well as lock. Just use the support in it, instead of explictly > > checking in the caller. > > > > Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> > > --- > > kernel/workqueue.c | 5 ++--- > > 1 file changed, 2 insertions(+), 3 deletions(-) > > > > diff --git a/kernel/workqueue.c b/kernel/workqueue.c > > index 9657315405de..91ed7aca16e5 100644 > > --- a/kernel/workqueue.c > > +++ b/kernel/workqueue.c > > @@ -424,9 +424,8 @@ static void workqueue_sysfs_unregister(struct workqueue_struct *wq); > > * ignored. > > */ > > #define for_each_pwq(pwq, wq) \ > > - list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node) \ > > - if (({ assert_rcu_or_wq_mutex(wq); false; })) { } \ > > - else > > + list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node, \ > > + lock_is_held(&(wq->mutex).dep_map)) > > > > I think the definition of assert_rcu_or_wq_mutex can also be deleted. Sure, will do. Thank you.