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    SubjectRe: [rfc patch 3/4] splice: remove confirm from pipe_buf_operations
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    > > > 
    > > > Let's start with page_cache_pipe_buf_confirm(). How should we deal
    > > > with finding an invalidated page (!PageUptodate(page) &&
    > > > !page->mapping)?
    > >
    > > I suspect we just have to use it. After all, it was valid when the read
    > > was done. The fact that it got invalidated later is kind of immaterial.
    >
    > Right. But what if it's invalidated *before* becoming uptodate (if
    > you'd read my mail further, I discussed this).

    Please ignore, this can't happen of course due to page locking...

    Miklos


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