On Tue, Mar 01, 2022 at 01:25:16PM -0800, Luis Chamberlain wrote: > diff --git a/kernel/ucount.c b/kernel/ucount.c > index 4f5613dac227..980ffaba1ac5 100644 > --- a/kernel/ucount.c > +++ b/kernel/ucount.c > @@ -238,6 +238,8 @@ struct ucounts *inc_ucount(struct user_namespace *ns, kuid_t uid, > long max; > tns = iter->ns; > max = READ_ONCE(tns->ucount_max[type]); > + if (atomic_long_read(&iter->ucount[type]) > max/16) > + cond_resched(); > if (!atomic_long_inc_below(&iter->ucount[type], max)) > goto fail; You can of course ignore this, it was just a hack to try to avoid a soft lockup on the workqueues. Luis
