Messages in this thread |  | | | Date | Fri, 7 May 2010 14:49:37 +0900 | | From | KAMEZAWA Hiroyuki <> | | Subject | Re: [PATCH 1/2] mm,migration: Prevent rmap_walk_[anon|ksm] seeing the wrong VMA information |
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On Fri, 7 May 2010 08:52:19 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> On Thu, 6 May 2010 10:46:21 +0100 > Mel Gorman <mel@csn.ul.ie> wrote:
> > 5. It added a field to mm_struct. It's the smallest of concerns though. > > > > Do you think it's a better approach and should be revisited? > > > > > > If everyone think seqlock is simple, I think it should be. But it seems you all are > going ahead with anon_vma->lock approach. > (Basically, it's ok to me if it works. We may be able to make it better in later.) > > I'll check your V7. > > Thank you for answering.
plz forget about seq_counter. we may have to add "retry" path for avoiding dead lock. If so, using anon_vma->lock in proper manner seems sane.
Thanks, -Kame
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