That's great news :)

Sebastien

On Mon, 2019-08-19 at 17:04 +0100, Stefan Hajnoczi wrote:

I am delighted to announce the release of virtio-fs v0.3, a shared file system that lets virtual machines access a directory tree on the host. This release is based on QEMU 4.1.0 and Linux 5.3-rc3.

For more information about virtio-fs: https://virtio-fs.gitlab.io/

This is a development release aimed at early adopters of virtio- fs. Work is being done to upstream the code into Linux and QEMU. We expect to stop publishing virtio-fs releases once the code has been merged by these upstream projects.

Where to get it:

https://gitlab.com/virtio-fs/linux/-/tags/virtio-fs-v0.3 https://gitlab.com/virtio-fs/qemu/-/tags/virtio-fs-v0.3

Changes:

• Please note that the mount syntax has changed to:

  # mount -t virtio_fs myfs /mnt -o ...

  The old syntax was "mount -t virtio_fs none /mnt -o tag=myfs,...".

• virtiofsd --fd=FDNUM takes a listen socket file descriptor

number. File descriptor passing is an alternative way to manage the vhost-user UNIX domain socket. The parent process no longer needs to wait for virtiofsd to create the listen socket before spawning the VM.

• virtiofsd --syslog logs to syslog(2) instead of stderr. Useful

for unifying logging and when the virtiofsd process is not being supervised.

• virtiofsd --thread-pool-size=NUM sets the maximum number of worker

threads for FUSE request processing. This can be used to control the host queue depth. The default is 64.

• Performance improvements and bug fixes.

Note for Kata Containers: the new kernel is not compatible with existing Kata Containers releases due to the mount syntax change. To try it out, please apply the following kata-runtime patch:

https://gitlab.com/virtio-fs/runtime/commit/a2e44de817e438c02a495cf258039774...

Kata Containers patches for virtio-fs v0.3 are under development and will be submitted to Kata soon.

Thanks to the following people for contributing code and to many more for helping the virtio-fs effort:

Dr. David Alan Gilbert dgilbert@redhat.com Eric Ren renzhen@linux.alibaba.com Eryu Guan eguan@linux.alibaba.com Ganesh Maharaj Mahalingam ganesh.mahalingam@intel.com Jiufei Xue jiufei.xue@linux.alibaba.com Liu Bo bo.liu@linux.alibaba.com Masayoshi Mizuma m.mizuma@jp.fujitsu.com Miklos Szeredi mszeredi@redhat.com Peng Tao tao.peng@linux.alibaba.com piaojun piaojun@huawei.com Sebastien Boeuf sebastien.boeuf@intel.com Stefan Hajnoczi stefanha@redhat.com Vivek Goyal vgoyal@redhat.com Xiaoguang Wang xiaoguang.wang@linux.alibaba.com _______________________________________________ kata-dev mailing list kata-dev@lists.katacontainers.io http://lists.katacontainers.io/cgi-bin/mailman/listinfo/kata-dev

Thanks all the contributors, looking forward to having a product virtio-fs deployment shortly.

On Aug 20, 2019, at 12:04 AM, Stefan Hajnoczi stefanha@redhat.com wrote:

I am delighted to announce the release of virtio-fs v0.3, a shared file system that lets virtual machines access a directory tree on the host. This release is based on QEMU 4.1.0 and Linux 5.3-rc3.

For more information about virtio-fs: https://virtio-fs.gitlab.io/

This is a development release aimed at early adopters of virtio-fs. Work is being done to upstream the code into Linux and QEMU. We expect to stop publishing virtio-fs releases once the code has been merged by these upstream projects.

Where to get it:

https://gitlab.com/virtio-fs/linux/-/tags/virtio-fs-v0.3 https://gitlab.com/virtio-fs/qemu/-/tags/virtio-fs-v0.3

Changes:

• Please note that the mount syntax has changed to:

  # mount -t virtio_fs myfs /mnt -o ...

  The old syntax was "mount -t virtio_fs none /mnt -o tag=myfs,...".

• virtiofsd --fd=FDNUM takes a listen socket file descriptor number. File descriptor passing is an alternative way to manage the vhost-user UNIX domain socket. The parent process no longer needs to wait for virtiofsd to create the listen socket before spawning the VM.

• virtiofsd --syslog logs to syslog(2) instead of stderr. Useful for unifying logging and when the virtiofsd process is not being supervised.

• virtiofsd --thread-pool-size=NUM sets the maximum number of worker threads for FUSE request processing. This can be used to control the host queue depth. The default is 64.

• Performance improvements and bug fixes.

Note for Kata Containers: the new kernel is not compatible with existing Kata Containers releases due to the mount syntax change. To try it out, please apply the following kata-runtime patch:

https://gitlab.com/virtio-fs/runtime/commit/a2e44de817e438c02a495cf258039774...

Kata Containers patches for virtio-fs v0.3 are under development and will be submitted to Kata soon.

Thanks to the following people for contributing code and to many more for helping the virtio-fs effort:

Dr. David Alan Gilbert dgilbert@redhat.com Eric Ren renzhen@linux.alibaba.com Eryu Guan eguan@linux.alibaba.com Ganesh Maharaj Mahalingam ganesh.mahalingam@intel.com Jiufei Xue jiufei.xue@linux.alibaba.com Liu Bo bo.liu@linux.alibaba.com Masayoshi Mizuma m.mizuma@jp.fujitsu.com Miklos Szeredi mszeredi@redhat.com Peng Tao tao.peng@linux.alibaba.com piaojun piaojun@huawei.com Sebastien Boeuf sebastien.boeuf@intel.com Stefan Hajnoczi stefanha@redhat.com Vivek Goyal vgoyal@redhat.com Xiaoguang Wang xiaoguang.wang@linux.alibaba.com _______________________________________________ kata-dev mailing list kata-dev@lists.katacontainers.io http://lists.katacontainers.io/cgi-bin/mailman/listinfo/kata-dev