Unmouting of the volume from service instance sometimes fails because
Windows clients tends to check the availability of shares even if not
mounted and the volume is in use then.
Fix finds out processes via smbstatus and kill them before unmounting.
Closes-Bug: 1703581
Change-Id: I2cbf959d7cb849d3ead1655b1a0932fd428a9e9f
Signed-off-by: Goutham Pacha Ravi <gouthampravi@gmail.com>
(cherry picked from commit 2c9fbc7505)
(cherry picked from commit 95d251e38b)
(cherry picked from commit b07c2484b6)
(cherry picked from commit a26b027b73)