diff options
| author | Evan Green <evgreen@chromium.org> | 2018-07-02 16:03:46 -0700 |
|---|---|---|
| committer | Martijn Coenen <maco@android.com> | 2018-10-22 08:55:10 +0200 |
| commit | c82807c7dd9f0125b3eaf6aefae31d63c260a60b (patch) | |
| tree | 347acc18189aaec5c249f57fcb09afd489ca2cde | |
| parent | 8567ea359cabc9805fb9fae457c0f8df3a2b9341 (diff) | |
UPSTREAM: loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl
This change adds LOOP_SET_BLOCK_SIZE as one of the supported ioctls
in lo_compat_ioctl. It only takes an unsigned long argument, and
in practice a 32-bit value works fine.
Bug: 117823094
Change-Id: I0061a082eb2632c47b7d66f35f2c909d33ff1653
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 9fea4b395260175de4016b42982f45a3e6e03d0b)
Signed-off-by: Martijn Coenen <maco@android.com>
| -rw-r--r-- | drivers/block/loop.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 3dc48abd22e8..7eac581912f0 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1581,6 +1581,7 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode, arg = (unsigned long) compat_ptr(arg); case LOOP_SET_FD: case LOOP_CHANGE_FD: + case LOOP_SET_BLOCK_SIZE: err = lo_ioctl(bdev, mode, cmd, arg); break; default: |