Finally, it's official on inter.it.
Born: 29.06.1990 (age: 24).
Height: 1.82 m (6 ft 0 in)
Position: Defensive midfielder.
The guy is pretty young but experienced, playing 186 league games already, and 22 times in the French national tea, after playing in all u21 categories in France.
Welcome M'Vila, hope you do well to replace Cambi!