how to view extended disque without rebooting the VM on Oracle VM 3.3.3

Hi,

we are runing OVM 3.3.3.

I have Linux partition where I extended /dev/xvda from 20gb to 120gb.

When I run fdisk -l this disk still 20gb.

I understand if I reboot I will see the new size, but how to do this without rebooting ?

[root@lxintfr08169 ~]# fdisk -l /dev/xvda

Disk /dev/xvda: 21.5 GB, 21474836480 bytes, 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x00087895

    Device Boot      Start         End      Blocks   Id  System

/dev/xvda1            2048     1030143      514048   83  Linux

/dev/xvda2         1030144     9418751     4194304   82  Linux swap / Solaris

/dev/xvda3         9418752    41943039    16262144   83  Linux