Thinking about this adventurous locking some more: I think you are
misunderstanding what a seqlock is. It is *not* a spinlock.
The critical read section with the reading of a version before and after
allows you access to a certain version of memory how it is or was some
time ago (caching effect
On Wed, Apr 02, 2008 at 03:34:01PM -0700, Christoph Lameter wrote:
> Still two methods ...
Yes, the invalidate_page is called with the core VM holding a
reference on the page _after_ the tlb flush. The invalidate_end is
called after the page has been freed already and after the tlb
flush. They've
On Wed, 2 Apr 2008, Andrea Arcangeli wrote:
> + void (*invalidate_page)(struct mmu_notifier *mn,
> + struct mm_struct *mm,
> + unsigned long address);
> +
> + void (*invalidate_range_start)(struct mmu_notifier *mn,
> +
# HG changeset patch
# User Andrea Arcangeli <[EMAIL PROTECTED]>
# Date 1207158873 -7200
# Node ID a406c0cc686d0ca94a4d890d661cdfa48cfba09f
# Parent 249e077dc932a5322e04ac1d69326622ea4023b8
Core of mmu notifiers.
Signed-off-by: Andrea Arcangeli <[EMAIL PROTECTED]>
Signed-off-by: Nick Piggin <[EMA
