EVENTFD_CTX_FILEGET(9)            Events based on file descripto           EVENTFD_CTX_FILEGET(9)



NAME
       eventfd_ctx_fileget - Acquires a reference to the internal eventfd context.

SYNOPSIS
       struct eventfd_ctx * eventfd_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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    EVENTFD_CTX_FILEGET(9)