Session initialisation is not complete until the lease manager
has run. We need to ensure that both nfs4_init_session and
nfs4_init_ds_session do so, and that they check for any resulting
errors in clp->cl_cons_state.
Only after this is done, can nfs4_ds_connect check the contents
of clp->cl_exchange_flags.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Cc: Andy Adamson <andros@xxxxxxxxxx>
---
fs/nfs/client.c | 16 ---------
fs/nfs/internal.h | 3 +-
fs/nfs/nfs4filelayoutdev.c | 23 +------------
fs/nfs/nfs4proc.c | 77 ++++++++++++++++++++++++++++---------------
4 files changed, 52 insertions(+), 67 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 60f7e4e..78970a1 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -593,22 +593,6 @@ void nfs_mark_client_ready(struct nfs_client *clp, int state)
}
/*
- * With sessions, the client is not marked ready until after a
- * successful EXCHANGE_ID and CREATE_SESSION.
- *
- * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate
- * other versions of NFS can be tried.
- */
-int nfs4_check_client_ready(struct nfs_client *clp)
-{
- if (!nfs4_has_session(clp))
- return 0;
- if (clp->cl_cons_state < NFS_CS_READY)
- return -EPROTONOSUPPORT;
- return 0;
-}
-
-/*
* Initialise the timeout values for a connection
*/
static void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index b777bda..00b66de 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -168,7 +168,6 @@ extern struct nfs_server *nfs_clone_server(struct nfs_server *,
struct nfs_fattr *,
rpc_authflavor_t);
extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
-extern int nfs4_check_client_ready(struct nfs_client *clp);
extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
const struct sockaddr *ds_addr,
int ds_addrlen, int ds_proto);
@@ -237,7 +236,7 @@ extern const u32 nfs41_maxwrite_overhead;
extern struct rpc_procinfo nfs4_procedures[];
#endif
-extern int nfs4_init_ds_session(struct nfs_client *clp);
+extern int nfs4_init_ds_session(struct nfs_client *, unsigned long);
/* proc.c */
void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index c9cff9a..0764c98 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -176,28 +176,7 @@ nfs4_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds)
goto out;
}
- if ((clp->cl_exchange_flags & EXCHGID4_FLAG_MASK_PNFS) != 0) {
- if (!is_ds_client(clp)) {
- status = -ENODEV;
- goto out_put;
- }
- ds->ds_clp = clp;
- dprintk("%s [existing] server=%s\n", __func__,
- ds->ds_remotestr);
- goto out;
- }
-
- /*
- * Do not set NFS_CS_CHECK_LEASE_TIME instead set the DS lease to
- * be equal to the MDS lease. Renewal is scheduled in create_session.
- */
- spin_lock(&mds_srv->nfs_client->cl_lock);
- clp->cl_lease_time = mds_srv->nfs_client->cl_lease_time;
- spin_unlock(&mds_srv->nfs_client->cl_lock);
- clp->cl_last_renewal = jiffies;
-
- /* New nfs_client */
- status = nfs4_init_ds_session(clp);
+ status = nfs4_init_ds_session(clp, mds_srv->nfs_client->cl_lease_time);
if (status)
goto out_put;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 99650aa..272c4ad 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5605,53 +5605,76 @@ int nfs4_proc_destroy_session(struct nfs4_session *session)
return status;
}
+/*
+ * With sessions, the client is not marked ready until after a
+ * successful EXCHANGE_ID and CREATE_SESSION.
+ *
+ * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate
+ * other versions of NFS can be tried.
+ */
+static int nfs41_check_session_ready(struct nfs_client *clp)
+{
+ int ret;
+
+ ret = nfs4_client_recover_expired_lease(clp);
+ if (ret)
+ return ret;
+ if (clp->cl_cons_state < NFS_CS_READY)
+ return -EPROTONOSUPPORT;
+ return 0;
+}
+
int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
unsigned int rsize, wsize;
- int ret;
if (!nfs4_has_session(clp))
return 0;
session = clp->cl_session;
- if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
- return 0;
+ spin_lock(&clp->cl_lock);
+ if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
- rsize = server->rsize;
- if (rsize == 0)
- rsize = NFS_MAX_FILE_IO_SIZE;
- wsize = server->wsize;
- if (wsize == 0)
- wsize = NFS_MAX_FILE_IO_SIZE;
+ rsize = server->rsize;
+ if (rsize == 0)
+ rsize = NFS_MAX_FILE_IO_SIZE;
+ wsize = server->wsize;
+ if (wsize == 0)
+ wsize = NFS_MAX_FILE_IO_SIZE;
- session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
- session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
+ session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
+ session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
+ }
+ spin_unlock(&clp->cl_lock);
- ret = nfs4_recover_expired_lease(server);
- if (!ret)
- ret = nfs4_check_client_ready(clp);
- return ret;
+ return nfs41_check_session_ready(clp);
}
-int nfs4_init_ds_session(struct nfs_client *clp)
+int nfs4_init_ds_session(struct nfs_client *clp, unsigned long lease_time)
{
struct nfs4_session *session = clp->cl_session;
int ret;
- if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
- return 0;
-
- ret = nfs4_client_recover_expired_lease(clp);
- if (!ret)
- /* Test for the DS role */
- if (!is_ds_client(clp))
- ret = -ENODEV;
- if (!ret)
- ret = nfs4_check_client_ready(clp);
- return ret;
+ spin_lock(&clp->cl_lock);
+ if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
+ /*
+ * Do not set NFS_CS_CHECK_LEASE_TIME instead set the
+ * DS lease to be equal to the MDS lease.
+ */
+ clp->cl_lease_time = lease_time;
+ clp->cl_last_renewal = jiffies;
+ }
+ spin_unlock(&clp->cl_lock);
+ ret = nfs41_check_session_ready(clp);
+ if (ret)
+ return ret;
+ /* Test for the DS role */
+ if (!is_ds_client(clp))
+ return -ENODEV;
+ return 0;
}
EXPORT_SYMBOL_GPL(nfs4_init_ds_session);
--
1.7.7.6
--
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