On 09/16/2010 09:02 AM, Steve Dickson wrote: > Hey Jeff, > > Here is the patch with the L_WARNING change and the > s/else if/if change I just mentioned... > > steved. > > Author: Jeff Layton <jlayton@xxxxxxxxxx> > Date: Thu Sep 16 08:58:02 2010 -0400 > > There's a bit of a chicken and egg problem when nfsd is run the first > time. On Fedora/RHEL at least, /proc/fs/nfsd is mounted up whenever nfsd > is plugged in via a modprobe.conf "install" directive. > > If someone runs rpc.nfsd without plugging in nfsd.ko first, > /proc/fs/nfsd won't be mounted and rpc.nfsd will end up using the legacy > nfsctl interface. After that, nfsd will be plugged in and subsequent > rpc.nfsd invocations will use that instead. > > This is a problem as some nfsd command-line options are ignored when the > legacy interface is used. It'll also be a problem for people who want > IPv6 enabled servers. The upshot is that we really don't want to use the > legacy interface unless there is no other option. > > To avoid this situation, have rpc.nfsd check to see if the "threads" > file is already present. If it's not, then make an attempt to mount > /proc/fs/nfsd. This is a "best-effort" sort of thing, however so we > just ignore the return code from the mount attempt and fall back to > using nfsctl() if it fails. > > Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> > Signed-off-by: Steve Dickson <steved@xxxxxxxxxx> Committed... steved. -- 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
