Hi, We want to be able to mount filesystems that just consist of one regular file via virtio-fs, i.e. no root directory, just a file as the root node. While that is possible via FUSE itself (through the 'rootmode' mount option, which is automatically set by the fusermount help program to match the mount point's inode mode), there is no virtio-fs option yet that would allow changing the rootmode from S_IFDIR to S_IFREG. To do that, this series introduces a new 'file' mount option that does precisely that. Alternatively, we could provide the same 'rootmode' option that FUSE has, but as laid out in patch 1's commit description, that option is a bit cumbersome for virtio-fs (in a way that it is not for FUSE), and its usefulness as a more general option is limited. Hanna Czenczek (2): virtio-fs: Add 'file' mount option virtio-fs: Document 'file' mount option fs/fuse/virtio_fs.c | 9 ++++++++- Documentation/filesystems/virtiofs.rst | 5 ++++- 2 files changed, 12 insertions(+), 2 deletions(-) -- 2.45.1
