Re: [Qemu-devel] [PATCH 14/15] postcopy: Check for userfault+hugepage feature

[Juan Quintela]

"Dr. David Alan Gilbert (git)" <address@hidden> wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
>
> We need extra Linux kernel support (~4.9) to support userfaults
> on hugetlbfs; check for them.
>
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>

Reviewed-by: Juan Quintela <address@hidden>


>  migration/postcopy-ram.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
> index 6b30b43..d12dd7f 100644
> --- a/migration/postcopy-ram.c
> +++ b/migration/postcopy-ram.c
> @@ -81,6 +81,17 @@ static bool ufd_version_check(int ufd)
>          return false;
>      }
>  
> +    if (getpagesize() != ram_pagesize_summary()) {

I am pretty sure that I don't like ram_pagesize_summary() name.  I have
already forgot what I mean O:-)