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| author | Amir Goldstein <amir73il@gmail.com> | 2024-02-09 16:57:17 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2024-02-23 17:36:32 +0100 |
| commit | 7dc4e97a4f9a55bae6ed6ab3f96c92921259d59f (patch) | |
| tree | 2232613c737e5709577dc4790ac884cb8d1a3891 /fs/fuse/Kconfig | |
| parent | aed918310ea2542059eeab6c74defca95c30f77b (diff) | |
| download | linux-stable-7dc4e97a4f9a55bae6ed6ab3f96c92921259d59f.tar.gz linux-stable-7dc4e97a4f9a55bae6ed6ab3f96c92921259d59f.tar.bz2 linux-stable-7dc4e97a4f9a55bae6ed6ab3f96c92921259d59f.zip | |
fuse: introduce FUSE_PASSTHROUGH capability
FUSE_PASSTHROUGH capability to passthrough FUSE operations to backing
files will be made available with kernel config CONFIG_FUSE_PASSTHROUGH.
When requesting FUSE_PASSTHROUGH, userspace needs to specify the
max_stack_depth that is allowed for FUSE on top of backing files.
Introduce the flag FOPEN_PASSTHROUGH and backing_id to fuse_open_out
argument that can be used when replying to OPEN request, to setup
passthrough of io operations on the fuse inode to a backing file.
Introduce a refcounted fuse_backing object that will be used to
associate an open backing file with a fuse inode.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/Kconfig')
| -rw-r--r-- | fs/fuse/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig index 038ed0b9aaa5..8674dbfbe59d 100644 --- a/fs/fuse/Kconfig +++ b/fs/fuse/Kconfig @@ -52,3 +52,14 @@ config FUSE_DAX 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. |