Process for mod of a variable that follows some Stochastic Process

Assuming a variable $v$ follows some Stochastic Process as below –

$dv=mu v dt + sigma v dW_t, v in left( -infty, infty right) $

I want to get the process of $|v|$

How can I use the ito's lemma in this context given that the function $|v|$ is not smooth?