Poettering: Revisiting how we put together Linux systems

It does help because it removes any reason to use the BSD lock API (at least when running on Linux, new enough kernel). Before that addition, the POSIX lock programming model was so broken, nobody sane would ever *want* to use it.

Yet, on Linux, local POSIX locks interoperate properly with POSIX locks via NFS, so, if software all switches to using POSIX locks, it'll work properly when used both locally and remotely at the same time.

Of course, very often, nothing is ever running on the NFS server that touches the exported data (or at least, nothing that needs to lock it) -- the NFS server is *just* a fileserver. In such an environment, using BSD locks over NFS on linux works properly too.