Linux kernel mirror (for testing)
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linux
1# SPDX-License-Identifier: GPL-2.0-only
2config FUSE_FS
3 tristate "FUSE (Filesystem in Userspace) support"
4 select FS_POSIX_ACL
5 select FS_IOMAP
6 help
7 With FUSE it is possible to implement a fully functional filesystem
8 in a userspace program.
9
10 There's also a companion library: libfuse2. This library is available
11 from the FUSE homepage:
12 <https://github.com/libfuse/>
13 although chances are your distribution already has that library
14 installed if you've installed the "fuse" package itself.
15
16 See <file:Documentation/filesystems/fuse/fuse.rst> for more information.
17 See <file:Documentation/Changes> for needed library/utility version.
18
19 If you want to develop a userspace FS, or if you want to use
20 a filesystem based on FUSE, answer Y or M.
21
22config CUSE
23 tristate "Character device in Userspace support"
24 depends on FUSE_FS
25 help
26 This FUSE extension allows character devices to be
27 implemented in userspace.
28
29 If you want to develop or use a userspace character device
30 based on CUSE, answer Y or M.
31
32config VIRTIO_FS
33 tristate "Virtio Filesystem"
34 depends on FUSE_FS
35 select VIRTIO
36 help
37 The Virtio Filesystem allows guests to mount file systems from the
38 host.
39
40 If you want to share files between guests or with the host, answer Y
41 or M.
42
43config FUSE_DAX
44 bool "Virtio Filesystem Direct Host Memory Access support"
45 default y
46 select INTERVAL_TREE
47 depends on VIRTIO_FS
48 depends on FS_DAX
49 depends on DAX
50 help
51 This allows bypassing guest page cache and allows mapping host page
52 cache directly in guest address space.
53
54 If you want to allow mounting a Virtio Filesystem with the "dax"
55 option, answer Y.
56
57config FUSE_PASSTHROUGH
58 bool "FUSE passthrough operations support"
59 default y
60 depends on FUSE_FS
61 select FS_STACK
62 help
63 This allows bypassing FUSE server by mapping specific FUSE operations
64 to be performed directly on a backing file.
65
66 If you want to allow passthrough operations, answer Y.
67
68config FUSE_IO_URING
69 bool "FUSE communication over io-uring"
70 default y
71 depends on FUSE_FS
72 depends on IO_URING
73 help
74 This allows sending FUSE requests over the io-uring interface and
75 also adds request core affinity.
76
77 If you want to allow fuse server/client communication through io-uring,
78 answer Y