NFS: Add a mount option "softerr" to allow clients to see ETIMEDOUT errors
Add a mount option that exposes the ETIMEDOUT errors that occur during
soft timeouts to the application. This allows aware applications to
distinguish between server disk IO errors and client timeout errors.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 90d71fd..f74638c 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -598,6 +598,8 @@ int nfs_init_server_rpcclient(struct nfs_server *server,
sizeof(server->client->cl_timeout_default));
server->client->cl_timeout = &server->client->cl_timeout_default;
server->client->cl_softrtry = 0;
+ if (server->flags & NFS_MOUNT_SOFTERR)
+ server->client->cl_softerr = 1;
if (server->flags & NFS_MOUNT_SOFT)
server->client->cl_softrtry = 1;