Re: [Qemu-devel] [PATCH] block: prevent multiwrite_merge from creating too large iovecs

[Anthony Liguori]

On 01/26/2010 03:21 AM, Christoph Hellwig wrote:
> On Wed, Jan 20, 2010 at 12:37:51PM +0100, Kevin Wolf wrote:
>    
> > To underline that it's a backend/platform dependent thing: Your patch
> > breaks the mingw build for me.
> >      
> Actually that's because mingw is the usual piece of crap and doesn't
> actually have any of the vector support you can expect from a normal
> Unix system.
>
> I can either throw in an #ifdef IOV_MAX around the check or fake one up
> for mingw.  Does any of the maintainers have a preference for either
> variant?
>    

grep for CONFIG_IOVEC in qemu-common.h and add a #define IOV_MAX.

mingw doesn't have iovec so we introduce a compat version.

Regards,

Anthony Liguori