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    SubjectRe: [PATCH v3 1/4] block: refactor iov_count_pages() from bio_{copy,map}_user_iov()
    On Thu, Apr 23, 2015 at 04:04:32PM -0700, Ming Lin wrote:
    > From: Kent Overstreet <kent.overstreet@gmail.com>
    >
    > Refactor the common part in bio_copy_user_iov() and
    > __bio_map_user_iov() to separate out iov_count_pages() into the general
    > iov_iter API, instead of open coding iov iterations as done previously.
    >
    > This commit should contain only literal replacements, without
    > functional changes.


    Weve already got a iov_iter_npages and iov_iter_alignment,
    the SG_IO code should probably be switched to those instead.


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