NFS/pNFS: Report EINVAL errors from connect() to the server

[ Upstream commit dd7d7ee3ba2a70d12d02defb478790cf57d5b87b ]

With IPv6, connect() can occasionally return EINVAL if a route is
unavailable. If this happens during I/O to a data server, we want to
report it using LAYOUTERROR as an inability to connect.

Fixes: dd52128afdde ("NFSv4.1/pnfs Ensure flexfiles reports all connection related errors")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 1ec79cc..5c69a6e 100644 (file)
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1235,6 +1235,7 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
                case -EPFNOSUPPORT:
                case -EPROTONOSUPPORT:
                case -EOPNOTSUPP:
+               case -EINVAL:
                case -ECONNREFUSED:
                case -ECONNRESET:
                case -EHOSTDOWN: