Name
eventfd_ctx_fileget — 
     Acquires a reference to the internal eventfd context.
 
Synopsis
| struct eventfd_ctx * fsfunceventfd_ctx_fileget ( | struct file * file ); | 
 
Arguments
- file
- 
     [in] Eventfd file pointer.
     
Description
   Returns a pointer to the internal eventfd context, otherwise the error
pointer
   
   -EINVAL   : The fd file descriptor is not an eventfd file.