null: make *impl_ private
authorTomohiro Kusumi <tkusumi@tuxera.com>
Mon, 15 Jan 2018 19:52:11 +0000 (21:52 +0200)
committerJens Axboe <axboe@kernel.dk>
Tue, 16 Jan 2018 15:32:37 +0000 (08:32 -0700)
commit7caf10f1b7c6e52280603c4fb45ffc41f60190b9
tree667b3483005f9ca5f535dc24dcccf292688d2ad2
parent7746976c9230e7b3349ad27136b0cd8784f0c405
null: make *impl_ private

This can/should be private, given struct is default public in C++.
The null ioengine only needs access to new'd NullData which
encapsulates malloc'd null_data *impl_.

Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
engines/null.c