[$] A new API for tree-in-dcache filesystems
Date:
Tue, 09 Jul 2024 21:17:35 +0000
Description:
There are a number of kernel filesystems that store their directory entries directly in the directory-entry cache (dcache) without having any permanent storage for those objects. It started out as a "neat hack" for ramfs ,
Al Viro said, at the start of his filesystem-track session at
the
2024 Linux Storage,
Filesystem, Memory Management, and BPF Summit . Unfortunately, as the use
of this technique has grown into other filesystems, there has been a lot of scope creep that has gotten out of control. He wanted to discuss some new infrastructure that he is working on to try to clean some of that up.
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Link to news story:
https://lwn.net/Articles/980558/
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