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SubjectRe: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
> +#define iov_iter_extract_mode(iter, extract_flags) \
> + (user_backed_iter(iter) ? \
> + (iter->data_source == ITER_SOURCE) ? \
> + FOLL_GET : FOLL_PIN : 0)

The extract_flags argument is unused here.

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