On Mon, Mar 15, 2021 at 5:08 PM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Mon, Mar 15, 2021 at 01:37:11PM +0800, Xie Yongji wrote: > > Export __receive_fd() so that some modules can use > > it to pass file descriptor between processes. > > I really don't think any non-core code should do that, especilly not > modular mere driver code. Do you see any issue? Now I think we're able to do that with the help of get_unused_fd_flags() and fd_install() in modules. But we may miss some security stuff in this way. So I try to export __receive_fd() and use it instead. Thanks, Yongji