address remarks for 5.3, 5.4

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
address remarks for 5.2*

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
drop customization of mpathsearch

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>