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authorAndy Adamson <andros@netapp.com>2009-06-16 22:43:15 +0400
committerBenny Halevy <bhalevy@panasas.com>2009-06-17 23:43:44 +0400
commit78722e9c9208a312695178f5331511badd190598 (patch)
tree9aeaea994040d090b9ecfb5f8b7c8fe91375262a /fs/nfs/nfs4state.c
parent008f55d0e019943323c20a03493a2ba5672a4cc8 (diff)
downloadlinux-78722e9c9208a312695178f5331511badd190598.tar.xz
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>
Diffstat (limited to 'fs/nfs/nfs4state.c')
-rw-r--r--fs/nfs/nfs4state.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 7dc971335ec2..2cc0aca96eb2 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -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 ==