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| author |   Evan Green <evgreen@chromium.org> | 2018-07-02 16:03:46 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2018-07-03 07:52:34 -0600 |
| commit | 9fea4b395260175de4016b42982f45a3e6e03d0b (patch) | |
| tree | 86b14931b2b87dc81674906c117409536a27c9e1 /drivers/block/loop.c | |
| parent | drbd: fix access after free (diff) | |
| download | linux-dev-9fea4b395260175de4016b42982f45a3e6e03d0b.tar.xz linux-dev-9fea4b395260175de4016b42982f45a3e6e03d0b.zip | |
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.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
| -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 21e6d1b3b393..258355c5a93a 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1612,6 +1612,7 @@ 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: |