[NFS-Ganesha-Devel] Re: Callbacks supported with 4.1

Yea, the notify lock callback is not supported, that would take some effort to implement non-blocking locks for NFS v4.1 which is complicated in that I'm not sure if the callback is a guaranteed deal, that the client will send some kind of cancellation if it gives up waiting for a blocked lock, If not, then we need to time out 4.x blocked locks. We also have to make them provisional until the client actually comes back with a new lock request, which means they COULD be handed out to another client in the meantime. This provisional (or courtesy) behavior may be hard to assure in a cluster or even a single node where there are other processes using locking on the same file system (since the courtesy lock would be a normal held lock on the backend - Ganesha can only give a conflicting lock out and cancel the courtesy lock for locks that come through that Ganesha instance). Frank > -----Original Message----- > From: Daniel Gryniewicz [mailto:dang@redhat.com] > Sent: Wednesday, July 1, 2020 7:21 AM > To: devel(a)lists.nfs-ganesha.org > Subject: [NFS-Ganesha-Devel] Re: Callbacks supported with 4.1 > > It appears the implemented callbacks are layout recall, device notify, delegation > recall, and getattr. You can check the callpoints of > nfs_rpc_cb_single() to see which callbacks are sent. > > Daniel > > On 7/1/20 9:13 AM, Trishali Nayar wrote: > > Hi all, > > > > Recently while doing some testing we observed that CB_NOTIFY_LOCK > > callback does not seem to supported by Ganesha. Is that understanding > correct? > > > > Also, any insights on the 4.1 callbacks that we do support, would be > > good to know. The RFC mentions quite a few of them. > > > > Thanks and regards, > > Trishali. > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > Trishali Nayar > > IBM Systems > > ETZ, Pune. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > > > > _______________________________________________ > > Devel mailing list -- devel(a)lists.nfs-ganesha.org To unsubscribe send > > an email to devel-leave(a)lists.nfs-ganesha.org > > > _______________________________________________ > Devel mailing list -- devel(a)lists.nfs-ganesha.org To unsubscribe send an email to > devel-leave(a)lists.nfs-ganesha.org _______________________________________________ Devel mailing list -- devel(a)lists.nfs-ganesha.org To unsubscribe send an email to devel-leave(a)lists.nfs-ganesha.org