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    SubjectRe: [PATCH] cpuset: fix allocating page cache/slab object on the unallowed node when memory spread is set
    On Wednesday 21 January 2009 19:06:20 Miao Xie wrote:
    > The task still allocated the page caches on old node after modifying its
    > cpuset's mems when 'memory_spread_page' was set, it is caused by the old
    > mem_allowed_list of the task, the current kernel doesn't updates it unless
    > some function invokes cpuset_update_task_memory_state(), it is too late
    > sometimes. We must update the mem_allowed_list of the tasks in time.
    > Slab has the same problem.
    > We fixes the bug by updating tasks' mem_allowed_list and spread flag after
    > its cpuset's mems or spread flag is changed.

    Thank you, this is a much better way to handle the problem, and keeps
    those costly function calls out of fastpaths.

    I don't know the cpuset code well enough to review it right now, but
    the mm/ pieces thank you kindly for it :) Nice patch.

     \ /
      Last update: 2009-01-21 09:33    [W:0.023 / U:2.696 seconds]
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