Re: Re: [PATCH v5 01/11] file: Export __receive_fd() to modules

On Mon, Mar 15, 2021 at 5:08 PM Christoph Hellwig [off-list ref] wrote:

On Mon, Mar 15, 2021 at 01:37:11PM +0800, Xie Yongji wrote:

quoted

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