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- NFS exporting is supported in Linux kernels 2.6.27 or later.
-
- You need to add an fsid=NNN option to /etc/exports to make exporting a
- FUSE directory work.
-
- Filesystem support
- ------------------
-
- NFS exporting works to some extent on all fuse filesystems, but not
- perfectly. This is due to the stateless nature of the protocol, the
- server has no way of knowing whether the client is keeping a reference
- to a file or not, and hence that file may be removed from the server's
- cache. In that case there has to be a way to look up that object
- using the inode number, otherwise an ESTALE error will be returned.
-
- 1) low-level interface
-
- Filesystems need to implement special lookups for the names "." and
- "..". The former may be requested on any inode, including
- non-directories, while the latter is only requested for directories.
- Otherwise these special lookups should behave identically to ordinary
- lookups.
-
- 2) high-level interface
-
- Because the high-level interface is path based, it is not possible to
- delegate looking up by inode to the filesystem.
-
- To work around this, currently a "noforget" option is provided, which
- makes the library remember nodes forever. This will make the NFS
- server happy, but also results in an ever growing memory footprint for
- the filesystem. For this reason if the filesystem is large (or the
- memory is small), then this option is not recommended.
-