diff options
| author | Omar Sandoval <osandov@fb.com> | 2017-08-24 00:03:43 -0700 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2018-12-10 22:31:33 +0530 |
| commit | 38817184921d147d3faddbf6980396163dd14689 (patch) | |
| tree | 29bfc5722b226396d0a4f86f9858dc20257ae564 /include | |
| parent | afe4c8d03bdf557f0e51f3a90c856f469040c5fa (diff) | |
UPSTREAM: loop: add ioctl for changing logical block size
This is a different approach from the first attempt in f2c6df7dbf9a
("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 89e4fdecb51cf5535867026274bc97de9480ade5)
Signed-off-by: Martijn Coenen <maco@android.com>
(cherry picked from commit 6edf1ad773206e5e1ec76b6b8492c83eecae031d)
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/loop.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/loop.h b/include/uapi/linux/loop.h index c8125ec1f4f2..23158dbe2424 100644 --- a/include/uapi/linux/loop.h +++ b/include/uapi/linux/loop.h @@ -88,6 +88,7 @@ struct loop_info64 { #define LOOP_CHANGE_FD 0x4C06 #define LOOP_SET_CAPACITY 0x4C07 #define LOOP_SET_DIRECT_IO 0x4C08 +#define LOOP_SET_BLOCK_SIZE 0x4C09 /* /dev/loop-control interface */ #define LOOP_CTL_ADD 0x4C80 |