F2FS & XFS File-Systems Updated For Linux 4.5

Written by Michael Larabel in Linux Storage on 14 January 2016 at 08:36 AM EST. 3 Comments
The F2FS file-system pull request is quite exciting while the XFS churn for the Linux 4.5 merge window isn't as meaty.

With the XFS file-system updates for Linux 4.5 there is now better CRC validation during log recovery, log recovery fixes, DAX support fixes, an AGFL size calculation fix, code cleanups, project quota ENOSPC notification via netlink, and tracing/debug improvements. Details on the XFS changes for Linux 4.5 can be found via this pull request.

Of more excitement for end-users are the Flash-Friendly File-System updates for this next version of the Linux kernel. First off, F2FS in Linux 4.5 adds two new ioctls: one for executing online file defragmentation and the other to flush cached data. F2FS also has a speedup when shrinking extent cache entries, handling for if the super-block is broken, refactoring the dirty inode management code, reducing the global lock coverage, and detecting user's idle time. There are also some major bug fixes.

Details on the F2FS changes for Linux 4.5 can be found via this pull request.
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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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