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authorOlga Kornievskaia <olga.kornievskaia@gmail.com>2020-04-24 17:45:50 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2020-04-28 15:58:38 -0400
commitdff58530c4ca8ce7ee5a74db431c6e35362cf682 (patch)
tree09ea83ae4657df6aba44edc009b86a0e86d38517 /include/linux/nfs_xdr.h
parentSUNRPC: defer slow parts of rpc_free_client() to a workqueue. (diff)
downloadlinux-dev-dff58530c4ca8ce7ee5a74db431c6e35362cf682.tar.xz
linux-dev-dff58530c4ca8ce7ee5a74db431c6e35362cf682.zip
NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION
Currently, if the client sends BIND_CONN_TO_SESSION with NFS4_CDFC4_FORE_OR_BOTH but only gets NFS4_CDFS4_FORE back it ignores that it wasn't able to enable a backchannel. To make sure, the client sends BIND_CONN_TO_SESSION as the first operation on the connections (ie., no other session compounds haven't been sent before), and if the client's request to bind the backchannel is not satisfied, then reset the connection and retry. Cc: stable@vger.kernel.org Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'include/linux/nfs_xdr.h')
-rw-r--r--include/linux/nfs_xdr.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 440230488025..e5f3e7d8d3d5 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1317,11 +1317,13 @@ struct nfs41_impl_id {
struct nfstime4 date;
};
+#define MAX_BIND_CONN_TO_SESSION_RETRIES 3
struct nfs41_bind_conn_to_session_args {
struct nfs_client *client;
struct nfs4_sessionid sessionid;
u32 dir;
bool use_conn_in_rdma_mode;
+ int retries;
};
struct nfs41_bind_conn_to_session_res {