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authorOlga Kornievskaia <olga.kornievskaia@gmail.com>2019-12-16 16:34:02 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-24 16:51:13 -0500
commitb24ee6c64ca785739b3ef8d95fd6becaad1bde39 (patch)
tree67f9ee7b75d21ad8bc6ffbce2a440af61eebda40 /fs/nfs/fs_context.c
parentf7b37b8b139860ed786bf8ce4358290c6053d94d (diff)
downloadlinux-b24ee6c64ca785739b3ef8d95fd6becaad1bde39.tar.bz2
NFS: allow deprecation of NFS UDP protocol
Add a kernel config CONFIG_NFS_DISABLE_UDP_SUPPORT to disallow NFS UDP mounts and enable it by default. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/fs_context.c')
-rw-r--r--fs/nfs/fs_context.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/fs_context.c b/fs/nfs/fs_context.c
index 0247dcb7b316..dfd95847f005 100644
--- a/fs/nfs/fs_context.c
+++ b/fs/nfs/fs_context.c
@@ -1215,6 +1215,10 @@ static int nfs_fs_context_validate(struct fs_context *fc)
}
} else {
nfs_set_mount_transport_protocol(ctx);
+#ifdef CONFIG_NFS_DISABLE_UDP_SUPPORT
+ if (ctx->nfs_server.protocol == XPRT_TRANSPORT_UDP)
+ goto out_invalid_transport_udp;
+#endif
if (ctx->nfs_server.protocol == XPRT_TRANSPORT_RDMA)
port = NFS_RDMA_PORT;
}