Btrfs filesystem support

modulename: btrfs.ko

configname: CONFIG_BTRFS_FS

Linux Kernel Configuration
└─>File systems
└─>Btrfs filesystem support
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
Btrfs is a new filesystem with extents, writable snapshotting,
support for multiple devices and many more features.

Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET
FINALIZED. You should say N here unless you are interested in
testing Btrfs with non-critical data.

To compile this file system support as a module, choose M here. The
module will be called btrfs.

If unsure, say N.

source code: