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    SubjectRe: [PATCH] vfs: add d_prune dentry operation
    On Mon, Oct 10, 2011 at 09:19:43AM -0700, Sage Weil wrote:
    > Let me know if the below is clearer. The requirement is that ->d_prune be
    > called prior to unhashing (and then destroying) a victim dentry. I'm a
    > little worried about mixing that in with the lru helpers because it is
    > only indirectly related to whether the dentry is on the LRU, and that may
    > confuse people. A cleaned up opencoded patch is here:
    > and the updated dentry_lru_prune() wrapper version is below.

    Long term what I really want is a helper for doing more of the real
    removal in single place. This is one step towards it, and the series
    from Dave is another.

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