Messages in this thread | | | Date | Tue, 4 Apr 2006 08:21:33 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [patch 2/3] mm: speculative get_page |
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On Tue, 4 Apr 2006, Nick Piggin wrote:
> + /* > + * PageNoNewRefs is set in order to prevent new references to the > + * page (eg. before it gets removed from pagecache). Wait until it > + * becomes clear (and checks below will ensure we still have the > + * correct one). > + */ > + while (unlikely(PageNoNewRefs(page))) > + cpu_relax();
That part looks suspiciously like we need some sort of lock here. - 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/
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