Hi, Here are the patches to support notification queue and blocking posix locks. One of the biggest change since las time has been creation of custom thread pool for handling locking requests. Thanks to Ioannis for doing most of the work on custom thread pool.
I have posted corresponding kernel changes here. https://lore.kernel.org/linux-fsdevel/20210930143850.1188628-1-vgo...@redhat.com/T/#mb2d0fbfdb580ef33b6e812d0acbd16333b11f2cf Any feedback is welcome. Thanks Vivek Vivek Goyal (13): virtio_fs.h: Add notification queue feature bit virtiofsd: fuse.h header file changes for lock notification virtiofsd: Remove unused virtio_fs_config definition virtiofsd: Add a helper to send element on virtqueue virtiofsd: Add a helper to stop all queues vhost-user-fs: Use helpers to create/cleanup virtqueue virtiofsd: Release file locks using F_UNLCK virtiofsd: Create a notification queue virtiofsd: Specify size of notification buffer using config space virtiofsd: Custom threadpool for remote blocking posix locks requests virtiofsd: Shutdown notification queue in the end virtiofsd: Implement blocking posix locks virtiofsd, seccomp: Add clock_nanosleep() to allow list hw/virtio/vhost-user-fs-pci.c | 4 +- hw/virtio/vhost-user-fs.c | 158 ++++++++-- include/hw/virtio/vhost-user-fs.h | 4 + include/standard-headers/linux/fuse.h | 11 +- include/standard-headers/linux/virtio_fs.h | 5 + tools/virtiofsd/fuse_i.h | 1 + tools/virtiofsd/fuse_lowlevel.c | 37 ++- tools/virtiofsd/fuse_lowlevel.h | 26 ++ tools/virtiofsd/fuse_virtio.c | 339 +++++++++++++++++---- tools/virtiofsd/meson.build | 1 + tools/virtiofsd/passthrough_ll.c | 91 +++++- tools/virtiofsd/passthrough_seccomp.c | 2 + tools/virtiofsd/tpool.c | 331 ++++++++++++++++++++ tools/virtiofsd/tpool.h | 18 ++ 14 files changed, 915 insertions(+), 113 deletions(-) create mode 100644 tools/virtiofsd/tpool.c create mode 100644 tools/virtiofsd/tpool.h -- 2.31.1
