On Thu, Jun 30, 2016 at 02:46:19PM -0700, Marc Eshel wrote: > I see that setting the number of nfsd threads to 0 (echo 0 > > /proc/fs/nfsd/threads) is not releasing the locks and putting the server > in grace mode. Writing 0 to /proc/fs/nfsd/threads shuts down knfsd. So it should certainly drop locks. If that's not happening, there's a bug, but we'd need to know more details (version numbers, etc.) to help. That alone has never been enough to start a grace period--you'd have to start knfsd again to do that. > What is the best way to go into grace period, in new version of the > kernel, without restarting the nfs server? Restarting the nfs server is the only way. That's true on older kernels true, as far as I know. (OK, you can apparently make lockd do something like this with a signal, I don't know if that's used much, and I doubt it works outside an NFSv3-only environment.) So if you want locks dropped and a new grace period, then you should run "systemctl restart nfs-server", or your distro's equivalent. But you're probably doing something more complicated than that. I'm not sure I understand the question.... --b. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
