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⇱ Clearing The Last ReiserFS Remnants: Documentation Cleanse Of The Defunct File-System - Phoronix


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Clearing The Last ReiserFS Remnants: Documentation Cleanse Of The Defunct File-System

Written by Michael Larabel in Linux Storage on 13 August 2025 at 08:18 AM EDT. 22 Comments
It was nearly one year ago in the Linux 6.13 kernel that the ReiserFS file-system was dropped from the mainline kernel after having been deprecated in 2022. That dropped 32.8k lines of code from the Linux kernel but some documentation remnants of ReiserFS were mistakenly left in but now in the process of dropping those remnants for the defunct file-system.

David Sterba of SUSE sent out the patch today after spotting some ReiserFS remnants within the Linux kernel documentation as well as some tooling. ReiserFS mentions are being removed from the Linux kernel documentation for no longer being relevant. The exception though is around the ReiserFS R5 hash function that is still used by some code within the kernel.

This patch on the Linux kernel mailing list continues clearing out those old ReiserFS references.

👁 ReiserFS documentation remnants


Meanwhile the out-of-tree Reiser4 file-system code or the Reiser5 evolution remain unmaintained and the development repository hasn't been touched now in three years. So with the remaining documentation references being cleared out, it looks like this era of Linux file-system pursuit by convicted murderer Hans Reiser is now over for good.

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.