driver or filesystem so that the contents can be read into the memory
allocated if mmap() chooses not to map the backing device directly. An
error will result if they don't. This is most likely to be encountered
with character device files, pipes, fifos and sockets.
driver or filesystem so that the contents can be read into the memory
allocated if mmap() chooses not to map the backing device directly. An
error will result if they don't. This is most likely to be encountered
with character device files, pipes, fifos and sockets.