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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
