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[$] Famfs: a filesystem interface to shareable memory

Tuesday July 30, 2024. 11:28 PM , from LWN.net
At the 2024 Linux
Storage, Filesystem, Memory Management, and BPF Summit, John Groves led
a session on famfs, which is a filesystem he has developed that uses the
kernel's direct-access (DAX)
mechanism to access memory that is shareable between hosts. The discussion
was aimed at whether a different approach should be taken and, in
particular, whether FUSE should be used instead of implementing as an
in-kernel filesystem. As noted in the thread about his
proposal for an LSFMM+BPF session, and the mailing-list discussions on the first and second
version of his patch set, there is some skepticism that a new in-kernel
filesystem is warranted for the use case.
https://lwn.net/Articles/983105/

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