From dc32bb678e103afbcfa4d814489af0566307f528 Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Wed, 14 Mar 2018 14:36:25 -0700 Subject: vhost: add vsock compat ioctl This will allow usage of vsock from 32-bit binaries on a 64-bit kernel. Signed-off-by: Sonny Rao Reviewed-by: Stefan Hajnoczi Signed-off-by: Michael S. Tsirkin --- drivers/vhost/vsock.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 0d14e2ff19f1..ee0c385d9fe5 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 = { -- cgit v1.2.3