On Fri, Apr 21, 2006 at 09:41:57AM +0200, Nick Piggin wrote:
> On Fri, Apr 21, 2006 at 12:29:38AM -0700, Andrew Morton wrote:
> >
> > When replacing calls to remap_pfn_rage() with calls to remap_valloc_range():
> >
> > - remap_pfn_range() sets VM_IO|VM_RESERVED|VM_PFNMAP on the user's vma.
> > remap_valloc_range() sets only VM_RESERVED.
>
> Yep, it doesn't use PFNMAPs (we can always user the underlying struct
> page), nor is it IO space. The only change that should be seen, as
> noted in patch 4/5, is that get_user_pages will work on all mappings
> now. I don't think there is a downside to this?
By "change that should be seen", I mean the only change that
userspace should see.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
