| # 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 |