On Tue, May 12, 2015 at 08:32:30PM +0800, Lai Jiangshan wrote: > wq_update_unbound_numa() is known be called with wq_pool_mutex held. > > But wq_update_unbound_numa() requests wq->mutex before reading > wq->unbound_attrs, wq->numa_pwq_tbl[] and wq->dfl_pwq. But these fields > were changed to be allowed being read with wq_pool_mutex held. So we > simply remove the mutex_lock(&wq->mutex). > > Without the dependence on the the mutex_lock(&wq->mutex), the test > of wq->unbound_attrs->no_numa can also be moved upward. > > The old code need a long comment to describe the stableness of > @wq->unbound_attrs which is also guaranteed by wq_pool_mutex now, > so we don't need this such comment. > > Signed-off-by: Lai Jiangshan <[email protected]>
Applied 1-2 to wq/for-4.2. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
