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    SubjectRe: [PATCH v9 08/61] page cache: Use xa_lock
    On Tue, Mar 13, 2018 at 06:25:46AM -0700, Matthew Wilcox wrote:
    > From: Matthew Wilcox <mawilcox@microsoft.com>
    >
    > Remove the address_space ->tree_lock and use the xa_lock newly added to
    > the radix_tree_root. Rename the address_space ->page_tree to ->i_pages,
    > since we don't really care that it's a tree.
    >
    > Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
    > Acked-by: Jeff Layton <jlayton@redhat.com>

    Man my eyes started to glaze over about halfway through this one

    Reviewed-by: Josef Bacik <jbacik@fb.com>

    Thanks,

    Josef

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