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    SubjectRe: [PATCH] introduce get_mm_hiwater_xxx(), fix taskstats->hiwater_xxx accounting
    * Oleg Nesterov <> [2008-12-07 18:28:45]:


    > No. When the task does unmap, vm does update_hiwater_vm() "internally",
    > it does not need the help from do_exit(). And do_exit() can't help,
    > it is to late to calculate the maximum, ->total_vm was already decreased.
    > do_exit() itself does not affect rss/vm. Until we call exit_mmap(),
    > but at this point ->mm is dead, nobody can look at it, its ->mm_users
    > is zero.

    OK, I think that makes sense, since free would have cleaned up the
    memory before entering the exit system call.



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