Last week we shared that Btrfs was getting ready for the mainline kernel and since then Chris Mason and other kernel hackers have committed several commits to the btrfs-unstable tree. There have been 21 commits to this new open-source file-system in the past four days.
This morning Linus Torvalds finally pulled Btrfs into the mainline kernel. This file-system can be built using the CONFIG_BTRFS_FS option. Besides the kernel module, there are also the Btrfs utilities that will also need to be fetched by interested users.
With this file-system that brings several advantages over EXT4 now landing in the Linux kernel plus kernel mode-setting and other features, the Linux 2.6.29 kernel is looking to be an interesting release. More on the Btrfs file-system can be read about on their project web-site.