Hi, > >> I'm still concerned/interested about the effect on performance. But > > > > I guess that somebody should try it out ;-) > > I'm pretty sure we should not introduce any sort of global > serialization locks here. We have to handle thousands events in > parallel on some boxes, and most of them don't need any of theses > locks. > > Why can't we just create the subdir and the link or node inside one > and the same retry-loop? The link or node will pin the subdir and any that certainly is _possible_ - it just seems to be pretty difficult to do, at least for me. The syscall for creating the object is not necessarily the immediate next thing after the call to util_create_path(), ... > competing remove will fail after that. We might in theory loop a while > until we successfully create the dir and the node or link, but in real > world setups it seems it just does not happen. That way we don't put > possibly expensive stuff in the common code path. ... which, of course, possibly is exactly the problem in that regard, too. Florian -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
