On Wed, Jan 18, 2017 at 02:42:30PM +0800, Boqun Feng wrote: > On Fri, Dec 09, 2016 at 02:12:11PM +0900, Byungchul Park wrote: > [...] > > +Example 1: > > + > > + CONTEXT X CONTEXT Y > > + --------- --------- > > + mutext_lock A > > + lock_page B > > + lock_page B > > + mutext_lock A /* DEADLOCK */ > > s/mutext_lock/mutex_lock Thank you. > > +Example 3: > > + > > + CONTEXT X CONTEXT Y > > + --------- --------- > > + mutex_lock A > > + mutex_lock A > > + mutex_unlock A > > + wait_for_complete B /* DEADLOCK */ > > I think this part better be: > > CONTEXT X CONTEXT Y > --------- --------- > mutex_lock A > mutex_lock A > wait_for_complete B /* DEADLOCK */ > mutex_unlock A > > , right? Because Y triggers DEADLOCK before X could run mutex_unlock(). There's no different between two examples. No matter which one is chosen, mutex_lock A in CONTEXT X cannot be passed. > > Regards, > Boqun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>