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nfs41: only retry EXCHANGE_ID on recoverable errors 

Stops an infinite loop of EXCHANGE_ID.

Signed-off-by: Andy Adamson <andros@netapp.com>
[fixed checkpatch warnings]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
This commit is contained in:
Andy Adamson 2009-06-16 14:43:15 -04:00 committed by Benny Halevy
parent 008f55d0e0
commit 78722e9c92
1 changed files with 22 additions and 1 deletions
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23
fs/nfs/nfs4state.c
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@ -1183,6 +1183,27 @@ static int nfs4_reset_session(struct nfs_client *clp) { return 0; }
static int nfs4_initialize_session(struct nfs_client *clp) { return 0; }
#endif /* CONFIG_NFS_V4_1 */
/* Set NFS4CLNT_LEASE_EXPIRED for all v4.0 errors and for recoverable errors
* on EXCHANGE_ID for v4.1
*/
static void nfs4_set_lease_expired(struct nfs_client *clp, int status)
{
if (nfs4_has_session(clp)) {
switch (status) {
case -NFS4ERR_DELAY:
case -NFS4ERR_CLID_INUSE:
case -EAGAIN:
break;
case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
* in nfs4_exchange_id */
default:
return;
}
}
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
}
static void nfs4_state_manager(struct nfs_client *clp)
{
int status = 0;
@ -1193,7 +1214,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* We're going to have to re-establish a clientid */
status = nfs4_reclaim_lease(clp);
if (status) {
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
nfs4_set_lease_expired(clp, status);
if (status == -EAGAIN)
continue;
if (clp->cl_cons_state ==