MFC: r264845
Remove an unnecessary level of indirection for an argument.
This simplifies the code and should avoid the clang sparc
port from generating an abort() call.
MFC: r264888
The PR reported that the old NFS server did not set uio_td == NULL
for the VOP_READ() call. This patch fixes both the old and new
server for this case.
MFC: r265252
The new draft specification for NFSv4.0 specifies that a server
should either accept owner and owner_group strings that are just
the digits of the uid/gid or return NFS4ERR_BADOWNER.
This patch adds a sysctl vfs.nfsd.enable_stringtouid, which can
be set to enable the server w.r.t. accepting numeric string. It
also ensures that NFS4ERR_BADOWNER is returned if numeric uid/gid
strings are not enabled. This fixes the server for recent Linux
nfs4 clients that use numeric uid/gid strings by default.