[Q] Data partition got smaller in N4, I find 24 other partitions topic

Hello all,
I used to install install custom ROMs since i got my nexus 4, note I'm on the official lollipop update, but i noticed that the data partition size changed from 12.x to 5.7 GB which is too small.

I have root access, and found there are 25 positions including my data partition, is this normal?
How can i repartition and get my full size data?

Code:

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root@mako:/ # ls /dev/block/mmcblk0p
mmcblk0p1  mmcblk0p14  mmcblk0p19  mmcblk0p23  mmcblk0p5
mmcblk0p10  mmcblk0p15  mmcblk0p2  mmcblk0p24  mmcblk0p6
mmcblk0p11  mmcblk0p16  mmcblk0p20  mmcblk0p25  mmcblk0p7
mmcblk0p12  mmcblk0p17  mmcblk0p21  mmcblk0p3  mmcblk0p8
mmcblk0p13  mmcblk0p18  mmcblk0p22  mmcblk0p4  mmcblk0p9
root@mako:/ #

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