On Sat, Nov 17, 2007 at 11:50:07AM +0100, Roel Kluin wrote:
> > + if (!pte_present(*pte))
> > + pte = NULL;
>
> shouldn't you check again for (pte == NULL)?
No, because if the page isn't mapped, handle_page_fault would have
returned non-zero, and we would have already returned.
This is leaving aside issues of whether the page could have been
unmapped by another CPU (which isn't an issue right now, and for which
I have a patch to fix anyway).
Jeff
--
Work email - jdike at linux dot intel dot com
-
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]
