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    SubjectRe: [PATCH] [Request for inclusion] Filesystem in Userspace
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    On Tue, 2004-11-16 at 10:52 +0100, Miklos Szeredi wrote:
    > > yes but how do you know the entry is still on the list and valid ?
    >
    > Because, it's always kept on one of two lists: pending and processing.
    > The entry is valid valid because it's "owned" by the caller, it's
    > never freed inside request_send().
    >
    > > you dropped the lock. A normal code pattern is that you then HAVE
    > > to revalidate the assumptions which you guard by that lock.
    >
    > The lock guards the list not the list element which is being removed.

    Locking rules like that need to be clearly documented.

    --
    dwmw2

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