On Fri, 2012-09-14 at 13:01 -0400, Chuck Lever wrote: > What happens if statd is restarted? Nothing unusual. Why? > Sent from my iPhone > > On Sep 14, 2012, at 10:25 AM, Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx> wrote: > > > This is a bug fix for https://bugzilla.redhat.com/show_bug.cgi?id=830862. > > > > The problem is that with NFSv4 mount in container (with separated mount > > namesapce) and active lock on it, dying child reaped of this container will > > try to umount NFS and doing this will try to create RPC client to send > > unmonitor request to statd. > > But creation of RCP client requires valid current->nsproxy (for operation with > > utsname()) and during umount on child reaper exit it's equal to zero. > > > > Proposed solution is to introduce refrence-counter per-net NSM client, which > > is created on fist monitor call and destroyed after the lst monitor call. > > > > The following series implements... > > > > --- > > > > Stanislav Kinsbursky (3): > > lockd: use rpc client's cl_nodename for id encoding > > lockd: per-net NSM client creation and destruction helpers introduced > > lockd: create and use per-net NSM RPC clients on MON/UNMON requests > > > > > > fs/lockd/mon.c | 91 +++++++++++++++++++++++++++++++++++++++++++----------- > > fs/lockd/netns.h | 4 ++ > > fs/lockd/svc.c | 1 + > > 3 files changed, 77 insertions(+), 19 deletions(-) > > > > > > -- > > 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 -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com ��.n��������+%������w��{.n�����{��w��� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
