Re: [Qemu-stable] [PATCH QEMU 1.0.1] virtio-9p-handle: define AT_EMPTY_PATH if needed

[Stefan Weil]

Am 21.06.2012 18:30, schrieb Stefano Stabellini:
> Hi all,
> I am proposing the appended patch for QEMU 1.0 stable, it fixes
> QEMU compilation on Ubuntu.
> Upstream a different solution was taken (see
> http://marc.info/?l=qemu-devel&m=133904755610143, that resulted in
> commit acc55ba8b1519bda27be19fad50b65d2b0c7d26d), but it is not
> applicable to QEMU 1.0.x.
>
> - Stefano
>    

Hi Stefano,

the upstream solution applies to QEMU 1.0.
You need these two patches:

http://patchwork.ozlabs.org/patch/131980/
http://patchwork.ozlabs.org/patch/163469/

They are available in QEMU git with these commits:
75cafad74d8df3f8ea188ed355127b91c9903290
acc55ba8b1519bda27be19fad50b65d2b0c7d26d

Regards,

Stefan


> ---
>
> From: Serge Hallyn<address@hidden>
>
> If AT_EMPTY_PATH is not in one of the included files, go ahead and
> define it.  qemu won't compile on ubuntu for me without this.
>
> Signed-off-by: Serge Hallyn<address@hidden>
>
> diff --git a/hw/9pfs/virtio-9p-handle.c b/hw/9pfs/virtio-9p-handle.c
> index f96d17a..e403a84 100644
> --- a/hw/9pfs/virtio-9p-handle.c
> +++ b/hw/9pfs/virtio-9p-handle.c
> @@ -39,6 +39,15 @@
>   #ifndef BTRFS_SUPER_MAGIC
>   #define BTRFS_SUPER_MAGIC 0x9123683E
>   #endif
> +#ifndef AT_REMOVEDIR
> +#define AT_REMOVEDIR    0x200
> +#endif
> +#ifndef AT_EMPTY_PATH
> +#define AT_EMPTY_PATH   0x1000  /* Allow empty relative pathname */
> +#endif
> +#ifndef O_PATH
> +#define O_PATH    010000000
> +#endif
>
>   struct handle_data {
>       int mountfd;
>