On Mon, Feb 20, 2017 at 03:39:59PM +0100, Greg Kurz wrote:
> This patch opens the shared folder and caches the file descriptor, so that
> it can be used to do symlink-safe path walk.
> 
> Signed-off-by: Greg Kurz <groug@kaod.org>
> ---
>  hw/9pfs/9p-local.c |   30 ++++++++++++++++++++++++++++--
>  1 file changed, 28 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c
> index c2239bfafce4..8aee7f2516ed 100644
> --- a/hw/9pfs/9p-local.c
> +++ b/hw/9pfs/9p-local.c
> @@ -14,6 +14,7 @@
>  #include "qemu/osdep.h"
>  #include "9p.h"
>  #include "9p-xattr.h"
> +#include "9p-util.h"
>  #include "fsdev/qemu-fsdev.h"   /* local_ops */
>  #include <arpa/inet.h>
>  #include <pwd.h>
> @@ -43,6 +44,10 @@
>  #define BTRFS_SUPER_MAGIC 0x9123683E
>  #endif
>  
> +struct local_data {

QEMU coding style would requires:

  typedef struct {
      int mountfd;
  } LocalData;

Otherwise:

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>