Message ID | 20180314213625.119211-1-sonnyrao@chromium.org |
---|---|
State | Changes Requested, archived |
Delegated to: | David Miller |
Headers | show |
Series | [v2] vhost: add vsock compat ioctl | expand |
On Wed, Mar 14, 2018 at 02:36:25PM -0700, Sonny Rao wrote: > This will allow usage of vsock from 32-bit binaries on a 64-bit > kernel. > > Signed-off-by: Sonny Rao <sonnyrao@chromium.org> > --- > drivers/vhost/vsock.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 0d14e2ff19f16..ee0c385d9fe54 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -699,12 +699,23 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned int ioctl, } } +#ifdef CONFIG_COMPAT +static long vhost_vsock_dev_compat_ioctl(struct file *f, unsigned int ioctl, + unsigned long arg) +{ + return vhost_vsock_dev_ioctl(f, ioctl, (unsigned long)compat_ptr(arg)); +} +#endif + static const struct file_operations vhost_vsock_fops = { .owner = THIS_MODULE, .open = vhost_vsock_dev_open, .release = vhost_vsock_dev_release, .llseek = noop_llseek, .unlocked_ioctl = vhost_vsock_dev_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = vhost_vsock_dev_compat_ioctl, +#endif }; static struct miscdevice vhost_vsock_misc = {
This will allow usage of vsock from 32-bit binaries on a 64-bit kernel. Signed-off-by: Sonny Rao <sonnyrao@chromium.org> --- drivers/vhost/vsock.c | 11 +++++++++++ 1 file changed, 11 insertions(+)