On Sat, 2015-03-14 at 18:03 -0700, Davidlohr Bueso wrote: > Good analysis, but not quite accurate for one simple fact: mutex > trylocks _only_ use fastpaths (obviously just depend on the counter > cmpxchg to 0), so you never fallback to the slowpath you are mentioning, > thus the race is non existent. Please see the arch code.
For debug we use the trylock slowpath, but so does everything else, so again you cannot hit this scenario. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
