On 2/21/25 19:13, Moinak Bhattacharyya wrote: > I don't have the modifications to libfuse. What tree are you using for > the uring modifications? I dont see any uring patches on the latest > master liburing. https://github.com/bsbernd/libfuse/tree/uring This is a development branch, goint to create a new branch out of that during the next days (now that I'm eventually almost through with libfuse-3.17). >>> It is possible, for example set FOPEN_PASSTHROUGH_FD to >>> interpret backing_id as backing_fd, but note that in the current >>> implementation of passthrough_hp, not every open does >>> fuse_passthrough_open(). >>> The non-first open of an inode uses a backing_id stashed in inode, >>> from the first open so we'd need different server logic depending on >>> the commands channel, which is not nice. > I wonder if we can just require URING registered FDs (using > IORING_REGISTER_FILES). I think io_uring does checks on the file > permissions when the FD is registered. Could you explain how fd registration into the ring would help here? Thanks, Bernd
