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Btrfs Filesystem In Linux 3.6 Kernel Has Big Changes

Linux Kernel

Published on 26 July 2012 09:27 PM EDT
Written by Michael Larabel in Linux Kernel
24 Comments

The Btrfs file-system update for the Linux 3.6 kernel is "a large btrfs update" with new features introduced to this next-generation file-system.

Chris Mason sent in the Btrfs Linux 3.6 pull request on Thursday as part of two branches due to the number of changes as "this pull request is very large."

The two key features added for this next kernel release include:

Sub-Volume Quotas: This allows for full tracking of how many blocks are allocated to each sub-volume (and snapshots) with limits being allowed on a per-sub-volume basis. Chris mentions this could be used so a web-hosting company could give each user their own sub-volume while limiting the amount of space permitted. The user-space side of the Btrfs quota code is still being worked on for a new release soon.

Send/Receive Support: This feature was talked about on Phoronix earlier this month for details.

The pull request for the Btrfs file-system in the Linux 3.6 kernel can be seen at LKML.org.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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