On Mon, Oct 21, 2019 at 11:58:02AM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" <dgilb...@redhat.com> > > Hi, > This is the 1st set for the virtiofsd - a daemon > that implements the user space side of virtiofs. > > The kernel and qemu device parts recently went in, > so the daemon is the only thing missing to have a working > set. > > This set is the absolute minimal base set of patches; > it's not yet safe to use (from security or correctness); > > I'll follow up with ~3 more series in the next few days > with: > > a) Security patches that add sandboxing and checking > compared with normal fuse - that makes it safe. > b) Performance improvements including threading > c) Other fixes, including correctness. > > but, this is a good start and gets things rolling. > > The set pulls in a big chunk of the upstream libfuse library > (unmodified so that it's easy to check it really is upstream), > chops all the stuff out we don't need and then adds the > new transport we need. > > For new files I've formatted the code according to qemu > standards; for files that are from upstream libfuse > I've kept with their standards for ease of future updating.
Thinking of future updates, have you given any thought to automating them? Something along the lines of update-linux-headers maybe? > We can't just link with libfuse, since we have to make ABI incompatible > changes for the new transport. > > Running this daemon is typically done with: > > ./virtiofsd -o vhost_user_socket=/path/socket -o source=/path/to/fs > > connected to a qemu that's then started with: > -chardev socket,id=char0,path=/path/socket -device > vhost-user-fs-pci,queue-size=1024,chardev=char0,tag=myfs > > and then in the guest mount with: > mount -t virtiofs myfs /mnt > > Our development branch is: > https://gitlab.com/virtio-fs/qemu/tree/virtio-fs-dev > > Dave > > > Dr. David Alan Gilbert (22): > virtiofsd: Pull in upstream headers > virtiofsd: Pull in kernel's fuse.h > virtiofsd: Add auxiliary .c's > virtiofsd: Add fuse_lowlevel.c > virtiofsd: Add passthrough_ll > virtiofsd: Trim down imported files > virtiofsd: Fix fuse_daemonize ignored return values > virtiofsd: Fix common header and define for QEMU builds > virtiofsd: fuse: Make iov_length usable outside fuse_lowlevel.c > virtiofsd: Add options for virtio > virtiofsd: Open vhost connection instead of mounting > virtiofsd: Start wiring up vhost-user > virtiofsd: Add main virtio loop > virtiofsd: get/set features callbacks > virtiofsd: Start queue threads > virtiofsd: Poll kick_fd for queue > virtiofsd: Start reading commands from queue > virtiofsd: Send replies to messages > virtiofsd: Keep track of replies > virtiofsd: Add Makefile wiring for virtiofsd contrib > virtiofsd: Fast path for virtio read > virtiofs: Add maintainers entry > > Stefan Hajnoczi (7): > virtiofsd: remove mountpoint dummy argument > virtiofsd: remove unused notify reply support > virtiofsd: add -o source=PATH to help output > virtiofsd: add --fd=FDNUM fd passing option > virtiofsd: make -f (foreground) the default > virtiofsd: add vhost-user.json file > virtiofsd: add --print-capabilities option > > Vivek Goyal (1): > virtiofsd: Make fsync work even if only inode is passed in > > .gitignore | 1 + > MAINTAINERS | 8 + > Makefile | 9 + > Makefile.objs | 1 + > contrib/virtiofsd/50-qemu-virtiofsd.json.in | 5 + > contrib/virtiofsd/Makefile.objs | 10 + > contrib/virtiofsd/buffer.c | 318 +++ > contrib/virtiofsd/fuse.h | 1268 ++++++++++ > contrib/virtiofsd/fuse_common.h | 823 +++++++ > contrib/virtiofsd/fuse_i.h | 131 ++ > contrib/virtiofsd/fuse_kernel.h | 858 +++++++ > contrib/virtiofsd/fuse_log.c | 40 + > contrib/virtiofsd/fuse_log.h | 82 + > contrib/virtiofsd/fuse_loop_mt.c | 54 + > contrib/virtiofsd/fuse_lowlevel.c | 2302 +++++++++++++++++++ > contrib/virtiofsd/fuse_lowlevel.h | 2024 ++++++++++++++++ > contrib/virtiofsd/fuse_misc.h | 59 + > contrib/virtiofsd/fuse_opt.c | 422 ++++ > contrib/virtiofsd/fuse_opt.h | 271 +++ > contrib/virtiofsd/fuse_signals.c | 90 + > contrib/virtiofsd/fuse_virtio.c | 717 ++++++ > contrib/virtiofsd/fuse_virtio.h | 33 + > contrib/virtiofsd/helper.c | 300 +++ > contrib/virtiofsd/passthrough_helpers.h | 76 + > contrib/virtiofsd/passthrough_ll.c | 1341 +++++++++++ > docs/interop/vhost-user.json | 4 +- > 26 files changed, 11246 insertions(+), 1 deletion(-) > create mode 100644 contrib/virtiofsd/50-qemu-virtiofsd.json.in > create mode 100644 contrib/virtiofsd/Makefile.objs > create mode 100644 contrib/virtiofsd/buffer.c > create mode 100644 contrib/virtiofsd/fuse.h > create mode 100644 contrib/virtiofsd/fuse_common.h > create mode 100644 contrib/virtiofsd/fuse_i.h > create mode 100644 contrib/virtiofsd/fuse_kernel.h > create mode 100644 contrib/virtiofsd/fuse_log.c > create mode 100644 contrib/virtiofsd/fuse_log.h > create mode 100644 contrib/virtiofsd/fuse_loop_mt.c > create mode 100644 contrib/virtiofsd/fuse_lowlevel.c > create mode 100644 contrib/virtiofsd/fuse_lowlevel.h > create mode 100644 contrib/virtiofsd/fuse_misc.h > create mode 100644 contrib/virtiofsd/fuse_opt.c > create mode 100644 contrib/virtiofsd/fuse_opt.h > create mode 100644 contrib/virtiofsd/fuse_signals.c > create mode 100644 contrib/virtiofsd/fuse_virtio.c > create mode 100644 contrib/virtiofsd/fuse_virtio.h > create mode 100644 contrib/virtiofsd/helper.c > create mode 100644 contrib/virtiofsd/passthrough_helpers.h > create mode 100644 contrib/virtiofsd/passthrough_ll.c > > -- > 2.23.0
