Re: [Qemu-devel] [PATCH v8 01/11] userfault: add pid into uffd_msg & update UFFD_FEATURE_*

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Alexey Perevalov (a.perevalov@samsung.com) wrote:
> This commit duplicates header of "userfaultfd: provide pid in userfault msg"
> into linux kernel.
> 
> Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com>

OK, so this isn't yet merged into Linus' tree from what I can tell;
we need to wait until it gets merged, and then run the
scripts/update-linux-headers.sh

Dave

> ---
>  linux-headers/linux/userfaultfd.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/linux-headers/linux/userfaultfd.h b/linux-headers/linux/userfaultfd.h
> index 9701772..eda028c 100644
> --- a/linux-headers/linux/userfaultfd.h
> +++ b/linux-headers/linux/userfaultfd.h
> @@ -78,6 +78,9 @@ struct uffd_msg {
>  		struct {
>  			__u64	flags;
>  			__u64	address;
> +			union {
> +				__u32   ptid;
> +			} feat;
>  		} pagefault;
>  
>  		struct {
> @@ -161,6 +164,7 @@ struct uffdio_api {
>  #define UFFD_FEATURE_MISSING_HUGETLBFS		(1<<4)
>  #define UFFD_FEATURE_MISSING_SHMEM		(1<<5)
>  #define UFFD_FEATURE_EVENT_UNMAP		(1<<6)
> +#define UFFD_FEATURE_THREAD_ID			(1<<7)
>  	__u64 features;
>  
>  	__u64 ioctls;
> -- 
> 1.9.1
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK