ptr = mmap(0, nbp*BIGSZ, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0) ;
if (ptr == (char *)-1)
ptr = mmap(0, nbp*BIGSZ, PROT_READ|PROT_WRITE, MAP_PRIVATE,
fd, 0);
mmap2(NULL, 4194304, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = -1 EINVAL
mmap2(NULL, 4194304, PROT_READ|PROT_WRITE, MAP_PRIVATE, 3, 0) = -1 EINVAL
I tried the two versions. MAP_SHARED and MAP_PRIVATE
From: "Benjamin LaHaise" <bcrl@redhat.com>
> On Thu, Nov 14, 2002 at 04:13:56PM +0100, dada1 wrote:
> > Thanks Christoph
> >
> > If I asked, this is because I tried the obvious and it doesnt work.
>
> It's a file. You need to use MAP_SHARED.
>
> -ben
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/