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- # SPDX-License-Identifier: GPL-2.0-only
- config FUSE_FS
- tristate "FUSE (Filesystem in Userspace) support"
- select FS_POSIX_ACL
- select FS_IOMAP
- help
- With FUSE it is possible to implement a fully functional filesystem
- in a userspace program.
- There's also a companion library: libfuse2. This library is available
- from the FUSE homepage:
- <https://github.com/libfuse/>
- although chances are your distribution already has that library
- installed if you've installed the "fuse" package itself.
- See <file:Documentation/filesystems/fuse/fuse.rst> for more information.
- See <file:Documentation/Changes> for needed library/utility version.
- If you want to develop a userspace FS, or if you want to use
- a filesystem based on FUSE, answer Y or M.
- config CUSE
- tristate "Character device in Userspace support"
- depends on FUSE_FS
- help
- This FUSE extension allows character devices to be
- implemented in userspace.
- If you want to develop or use a userspace character device
- based on CUSE, answer Y or M.
- config VIRTIO_FS
- tristate "Virtio Filesystem"
- depends on FUSE_FS
- select VIRTIO
- help
- The Virtio Filesystem allows guests to mount file systems from the
- host.
- If you want to share files between guests or with the host, answer Y
- or M.
- config FUSE_DAX
- bool "Virtio Filesystem Direct Host Memory Access support"
- default y
- select INTERVAL_TREE
- depends on VIRTIO_FS
- depends on FS_DAX
- depends on DAX
- help
- This allows bypassing guest page cache and allows mapping host page
- cache directly in guest address space.
- If you want to allow mounting a Virtio Filesystem with the "dax"
- option, answer Y.
- config FUSE_PASSTHROUGH
- bool "FUSE passthrough operations support"
- default y
- depends on FUSE_FS
- select FS_STACK
- help
- This allows bypassing FUSE server by mapping specific FUSE operations
- to be performed directly on a backing file.
- If you want to allow passthrough operations, answer Y.
- config FUSE_IO_URING
- bool "FUSE communication over io-uring"
- default y
- depends on FUSE_FS
- depends on IO_URING
- help
- This allows sending FUSE requests over the io-uring interface and
- also adds request core affinity.
- If you want to allow fuse server/client communication through io-uring,
- answer Y
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