nfs: reject changes to resvport and sharecache during remount
Commit c8e47028 made it possible to change resvport/noresvport and sharecache/nosharecache via a remount operation, neither of which should be allowed. Signed-off-by:Scott Mayhew <smayhew@redhat.com> Fixes: c8e47028 (nfs: Apply NFS_MOUNT_CMP_FLAGMASK to nfs_compare_remount_data) Cc: stable@vger.kernel.org # 3.16+ Signed-off-by:
Trond Myklebust <trond.myklebust@primarydata.com>
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