Re: [PATCH v10 02/17] file: Export receive_fd() to modules

[Yongji Xie <xieyongji@bytedance.com>]

On Tue, Aug 3, 2021 at 3:46 PM Jason Wang <jasowang@redhat.com> wrote:
>
>
> 在 2021/7/29 下午3:34, Xie Yongji 写道:
> > Export receive_fd() so that some modules can use
> > it to pass file descriptor between processes without
> > missing any security stuffs.
> >
> > Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
> > ---
> >   fs/file.c            | 6 ++++++
> >   include/linux/file.h | 7 +++----
> >   2 files changed, 9 insertions(+), 4 deletions(-)
> >
> > diff --git a/fs/file.c b/fs/file.c
> > index 86dc9956af32..210e540672aa 100644
> > --- a/fs/file.c
> > +++ b/fs/file.c
> > @@ -1134,6 +1134,12 @@ int receive_fd_replace(int new_fd, struct file *file, unsigned int o_flags)
> >       return new_fd;
> >   }
> >
> > +int receive_fd(struct file *file, unsigned int o_flags)
> > +{
> > +     return __receive_fd(file, NULL, o_flags);
>
>
> Any reason that receive_fd_user() can live in the file.h?
>

Since no modules use it.

Thanks,
Yongji