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    SubjectRe: [PATCH] proc 1/6: implement support for automounts in task directories
    Alexey Dobriyan <> writes:

    > I don't have a lot of opinion on this bug. I checked patchset to fix known
    > reproducer, timeout is obviously taken out of air and not nice.

    As for timeout. The logic is that mark_mounts_for_expiry is just an
    aging mechanism, and if something is actually in use it is not aged out.

    In the general case the call to proc_shrink_automounts in
    kernel/exit.c will clean up everything. It is possible but unlikely
    in practice that someone will pin a lot of process directories open
    then stop pinning them, and after that point nothing will remain open,
    so we close that hole.

    I set timeout huge because it should never be needed in real life.

    That said I'm up for taking this as a starting point and generalizing
    the mechanisms in fs/namespace.c. So I don't need a timeout at all,
    but that is an orthogonal discussion.


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      Last update: 2009-03-31 01:13    [W:0.022 / U:8.588 seconds]
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