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    SubjectRe: 2.6.12-rc2-mm3
    Andrew Morton wrote:
    >
    > Oleg Nesterov <oleg@tv-sign.ru> wrote:
    > >
    > > ...
    > > Before this timer patch del_timer(pending_timer) worked as
    > > a memory barrier for the caller, now it does not.
    > >
    >
    > I wonder if we should still do this? It would seem to be a safer approach.
    >
    > (This barrier stuff continues to give me the creeps. Imagine being
    > dependent upon accidental barriers in the add/del/mod_timer code. Ugh).

    I can't judge. But if we added barriers now, it would be
    very hard to remove them later. And I think it's not good
    to have these barriers "just in case".

    Oleg.
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