On Sun, Aug 27, 2023 at 09:28:28PM +0800, Hao Xu wrote: > +++ b/include/linux/file.h > @@ -81,6 +81,8 @@ static inline void fdput_pos(struct fd f) > fdput(f); > } > > +extern int file_pos_lock_nowait(struct file *file, bool nowait); No extern on function declarations.
