From: Trond Myklebust Date: Sat, 27 Sep 2014 21:02:26 +0000 (-0400) Subject: NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails X-Git-Tag: firefly_0821_release~176^2~3012^2~5^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a4339b7b686b4acc8b6de2b07d7bacbe3ae44b83;p=firefly-linux-kernel-4.4.55.git NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails If a NFSv4.x server returns NFS4ERR_STALE_CLIENTID in response to a CREATE_SESSION or SETCLIENTID_CONFIRM in order to tell us that it rebooted a second time, then the client will currently take this to mean that it must declare all locks to be stale, and hence ineligible for reboot recovery. RFC3530 and RFC5661 both suggest that the client should instead rely on the server to respond to inelegible open share, lock and delegation reclaim requests with NFS4ERR_NO_GRACE in this situation. Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust --- diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 22fe35104c0c..26d510d11efd 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1761,7 +1761,6 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status) break; case -NFS4ERR_STALE_CLIENTID: clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); - nfs4_state_clear_reclaim_reboot(clp); nfs4_state_start_reclaim_reboot(clp); break; case -NFS4ERR_CLID_INUSE: