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    SubjectRe: [PATCH 05/18] [PATCH] BLOCK: Don't call block_sync_page() from AFS [try #4]
    Date
    Christoph Hellwig <hch@infradead.org> wrote:

    > AFS never sets a backing_dev_info on it's own and thus uses
    > &default_backing_dev_info which sets the unplug_io_fn to
    > default_unplug_io_fn. default_unplug_io_fn is a no-op, and thus
    > block_sync_page does nothing for AFS.

    I'm sure I used to require this for when there was a local cache on disk.
    Maybe things have changed, or maybe I'm misremembering.

    David
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