F2FS File-System Updates For Linux 4.3

Written by Michael Larabel in Linux Storage on 2 September 2015 at 04:02 PM EDT. 5 Comments
For those interested in F2FS as a Linux file-system to use on solid-state drives and other flash storage devices, here's the latest updates for it with Linux 4.3.

The Flash-Friendly File-System in Linux 4.2 gained per-file encryption support. With Linux 4.3 there isn't any breakthrough new user feature, but some nice underlying updates.

Jaegeuk Kim in the F2FS 4.3 pull request outlined the following highlights:
The major work includes fixing and enhancing the existing extent_cache feature, which has been well settling down so far and now it becomes a default mount option accordingly.

Also, this version newly registers a f2fs memory shrinker to reclaim several objects consumed by a couple of data structures in order to avoid memory pressures.

Another new feature is to add ioctl(F2FS_GARBAGE_COLLECT) which triggers a cleaning job explicitly by users.
Recently with F2FS I did a six-way file-system comparison as well as file-system tests on a USB flash/thumb drive.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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