1 files changed, 7 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 982b4527551d..9da4bd55eb30 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2184,6 +2184,13 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
                 err = _nfs4_do_setattr(inode, cred, fattr, sattr, state);
                 switch (err) {
                 case -NFS4ERR_OPENMODE:
+                        if (!(sattr->ia_valid & ATTR_SIZE)) {
+                                pr_warn_once("NFSv4: server %s is incorrectly "
+                                                "applying open mode checks to "
+                                                "a SETATTR that is not "
+                                                "changing file size.\n",
+                                                server->nfs_client->cl_hostname);
+                        }
                         if (state && !(state->state & FMODE_WRITE)) {
                                 err = -EBADF;
                                 if (sattr->ia_valid & ATTR_OPEN)