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| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-01-18 22:56:23 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-01-27 15:51:28 -0500 |
| commit | 202c312dba7d95b96493b412c606163a0cd83984 (patch) | |
| tree | 09bdba985da1addd3ae48e16b8953027645f2c62 /fs/nfs/nfs4state.c | |
| parent | NFSv4: Fix NFSv4 reference counting for trunked sessions (diff) | |
| download | linux-dev-202c312dba7d95b96493b412c606163a0cd83984.tar.xz linux-dev-202c312dba7d95b96493b412c606163a0cd83984.zip | |
NFSv4: Fix NFSv4 trunking discovery
If walking the list in nfs4[01]_walk_client_list fails, then the most
likely explanation is that the server dropped the clientid before we
actually managed to confirm it. As long as our nfs_client is the very
last one in the list to be tested, the caller can be assured that this
is the case when the final return value is NFS4ERR_STALE_CLIENTID.
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org [>=3.7]
Tested-by: Ben Greear <greearb@candelatech.com>
Diffstat (limited to 'fs/nfs/nfs4state.c')
| -rw-r--r-- | fs/nfs/nfs4state.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 9448c579d41a..f72561ca6895 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -136,16 +136,11 @@ int nfs40_discover_server_trunking(struct nfs_client *clp, clp->cl_confirm = clid.confirm; status = nfs40_walk_client_list(clp, result, cred); - switch (status) { - case -NFS4ERR_STALE_CLIENTID: - set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); - case 0: + if (status == 0) { /* Sustain the lease, even if it's empty. If the clientid4 * goes stale it's of no use for trunking discovery. */ nfs4_schedule_state_renewal(*result); - break; } - out: return status; } @@ -1863,6 +1858,7 @@ again: case -ETIMEDOUT: case -EAGAIN: ssleep(1); + case -NFS4ERR_STALE_CLIENTID: dprintk("NFS: %s after status %d, retrying\n", __func__, status); goto again; |