| # SPDX-License-Identifier: GPL-2.0-only |
| config FUSE_FS |
| tristate "FUSE (Filesystem in Userspace) support" |
| select FS_POSIX_ACL |
| 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.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_DRIVER |
| 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_BPF |
| bool "Adds BPF to fuse" |
| depends on FUSE_FS |
| depends on BPF |
| help |
| Extends FUSE by adding BPF to prefilter calls and potentially pass to a |
| backing file system |
