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    SubjectRe: [RFC PATCH 02/11] refcount: Implement inc/decrement-and-return functions
    Date
    Peter Zijlstra <peterz@infradead.org> wrote:

    > > unsigned int refcount_dec_return(refcount_t *r);
    > > unsigned int refcount_inc_return(refcount_t *r);
    > >
    >
    > I'm not immediately seeing how wanting 1 to mean unused leads to
    > requiring these two functions.

    Did you read the other other part of the description?

    Further, both functions can be used to accurately trace the refcount
    (refcount_inc() followed by refcount_read() can't be considered
    accurate).

    > If you'll remember, I did that for inode_count and only needed
    > dec_unless().

    I don't remember. inode_count? I can't find such a thing - did you mean
    i_count? I don't find anything matching "dec_unless.*i_count" either.

    David

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