On Mon, Feb 06, 2017 at 07:39:09PM -0500, Jeff Mahoney wrote:
> Commit 4c63c2454ef incorrectly assumed that returning -ENOIOCTLCMD would
> cause the native ioctl to be called. The ->compat_ioctl callback is
> expected to handle all ioctls, not just compat variants. As a result,
> when using 32-bit userspace on 64-bit kernels, everything except those
> three ioctls would return -ENOTTY.
>
> Fixes: 4c63c2454ef ("btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
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