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FUSEFS
FUSE (Filesystem in USErspace) implements a file system that is serviced by a userspace program.
History
The FUSE module has been worked on by several people:
- CsabaHenk, for Google Summer of Code 2007 (“fuse4bsd”) - start of the port, unstable code
- IlyaPutsikau, for Google Summer of Code 2011 - continued the port by rebasing from macfuse, unfinished project (SOC2011IlyaPutsikau)
- AttilioRao and GeorgeNevilleNeil finished Ilya's GSoC project and imported it into the base system in 2012.
- AlanSomers overhauled the driver and added a test suite in 2019, sponsored by the FreeBSD Foundation.
Status
As of 31-July-2019, the module implements version 7.23 of the FUSE protocol, with a few unimplemented features:
- FUSE_IOCTL
- BATCH_FORGET
- flock(2) (implemented in-kernel, so it doesn't work for networked file systems)
- posix_fallocate(2)
- FUSE_AUTO_INVAL_DATA
- FUSE_READDIRPLUS
- poll(2) (works for pipes and sockets, but not for regular files)
- FUSE_ASYNC_DIO
- FUSE_NO_OPEN_SUPPORT
Links
- libfuse GitHub repository –Library used by many, but not all, FUSE file systems