diff options
| author | Omar Sandoval <osandov@fb.com> | 2017-08-24 00:03:43 -0700 |
|---|---|---|
| committer | Alistair Delva <adelva@google.com> | 2020-05-02 16:31:15 +0000 |
| commit | 6b9a1ab9e65edfd1cea1d76ef7ed8de247f4c338 (patch) | |
| tree | 34b3d3ce7b6adbf118b26f2a6a1f3af53787e5d1 /include/uapi/linux | |
| parent | 7c6a40d297548f4afe4049d337433e3cb9c04a8d (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.
Change-Id: I8d847f9f33263de9840c5e236a9f0fb7caf1edb4
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>
Diffstat (limited to 'include/uapi/linux')
| -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 |