On Tue, Jun 18, 2013 at 10:19:40AM +0800, liu ping fan wrote: > On Mon, Jun 17, 2013 at 11:28 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote: > > On Sun, Jun 16, 2013 at 07:21:21PM +0800, Liu Ping Fan wrote: > > Why lock bh_lock before assigning bh->next? Could you lock the mutex > > here and then drop the smp_wmb() since the pthread function already does > > that? > > > As Paolo's explain, it will open race gap for writers.
Right, thanks!
