# ARGS: <mount point> <remount options>
# eg.
# rmnt /mnt/hdd1 rw,noatime
#
# You don't have to go to the root of the mountpoint, just use:
#
# rmnt . rw
#
# anywhere in the mountpoint tree

function rmnt() {
  local mntp

  if [ $# -gt 1 ]; then
    mount $( df "${1}" --output=target | { read; read -r mntp; echo "${mntp}"; } ) -o remount,$2
  else
    echo "${FUNCNAME} <mount point> <remount options>"
  fi
}