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    SubjectRe: [patch 3/7] mm: make page writeback obey cpuset constraints
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    On Tue, 2008-10-28 at 09:08 -0700, David Rientjes wrote:

    > + is_subset = cpuset_populate_dirty_limits(dl, &dirtyable_memory,
    > + &nr_mapped, nodes);
    > + if (!is_subset) {
    > + dl->nr_dirty = global_page_state(NR_FILE_DIRTY);
    > + dl->nr_unstable = global_page_state(NR_UNSTABLE_NFS);
    > + dl->nr_writeback = global_page_state(NR_WRITEBACK);
    > + dirtyable_memory = determine_dirtyable_memory();
    > + nr_mapped = global_page_state(NR_FILE_MAPPED) +
    > + global_page_state(NR_ANON_PAGES);
    > + } else
    > + dirtyable_memory -= highmem_dirtyable_memory(nodes,
    > + dirtyable_memory);

    Why not fold that all into cpuset_populate_dirty_limits() ?



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