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Andrew Morton wrote: > On Wed, 30 May 2007 19:34:18 +0400 > Pavel Emelianov <xemul@openvz.org> wrote: > >> As described above, pages are charged to their first touchers. >> The first toucher is determined using pages' _mapcount >> manipulations in rmap calls. >> >> Page is charged in two stages: >> 1. preparation, in which the resource availability is checked. >> This stage may lead to page reclamation, thus it is performed >> in a "might-sleep" places; >> 2. the container assignment to page. This is done in an atomic >> code that handles races between multiple touchers. > > I suppose we need to think about what to do about higher-order pages, and > compound pages, and hugetlb memory. Yes, that needs to be done eventually. I feel that support can be added incrementally once we have a stable controller. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL - 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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