> -----Original Message----- > From: Steven Lariau <steven.lar...@arm.com> > Sent: Friday, September 11, 2020 10:30 AM > To: Eads, Gage <gage.e...@intel.com>; Olivier Matz <olivier.m...@6wind.com> > Cc: dev@dpdk.org; n...@arm.com; dharmik.thak...@arm.com; Steven Lariau > <steven.lar...@arm.com> > Subject: [PATCH 2/5] lib/stack: remove push acquire fence > > An acquire fence is used to make sure loads after the fence can observe > all store operations before a specific store-release. > But push doesn't read any data, except for the head which is part of a > CAS operation (the items on the list are not read). > So there is no need for the acquire barrier. > > Signed-off-by: Steven Lariau <steven.lar...@arm.com> > Reviewed-by: Dharmik Thakkar <dharmik.thak...@arm.com> > Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com> Acked-by: Gage Eads <gage.e...@intel.com> Thanks, Gage
