This is a different approach from the first attempt in f2c6df7dbf
("loop: support 4k physical blocksize"). Rather than extending
LOOP_{GET,SET}_STATUS, add a separate ioctl just for setting the block
size.
Bug: 117823094
Change-Id: I8e69b8839d7fee3be564cbfce1797ce108e1aa1e
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 89e4fdecb5)
Signed-off-by: Martijn Coenen <maco@android.com>
(cherry picked from commit 6edf1ad773206e5e1ec76b6b8492c83eecae031d)
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
3881718492