project on btrfs

[dasgenie]

I am new to linux and doing a small project on btrfs . I want to know that
1. how can i change the source code and see the change , i.e output.
2. from where i can get more information on BTRFS .

[ssam]

these may help get you started

compiling kernels on ubuntu:
https://help.ubuntu.com/community/Kernel/Compile

various links to get started with kernel programming:
http://kernelnewbies.org/KernelHacking