From: Long Li longli@microsoft.com
During reconnecting, the transport may have already been destroyed and is in the process being reconnected. In this case, return -EAGAIN to not fail and to retry this I/O.
Signed-off-by: Long Li longli@microsoft.com Cc: stable@vger.kernel.org --- fs/cifs/transport.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index afe66f9cb15e..66fde7bfec4f 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -318,8 +318,11 @@ __smb_send_rqst(struct TCP_Server_Info *server, int num_rqst, int val = 1; __be32 rfc1002_marker;
- if (cifs_rdma_enabled(server) && server->smbd_conn) { - rc = smbd_send(server, num_rqst, rqst); + if (cifs_rdma_enabled(server)) { + /* return -EAGAIN when connecting or reconnecting */ + rc = -EAGAIN; + if (server->smbd_conn) + rc = smbd_send(server, num_rqst, rqst); goto smbd_done; }