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    SubjectRe: [PATCH] [ARM] force dcache flush if dcache_dirty bit set
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    From: Russell King - ARM Linux <linux@arm.linux.org.uk>
    Date: Mon, 12 Oct 2009 11:00:23 +0100

    > The problem which has been identified is that when flush_dcache_page() is
    > called, there is a mapping, and so the page is marked for lazy flushing.
    > However, by the time update_mmu_cache() gets called, the mapping has gone
    > and so update_mmu_cache() does nothing.

    Now I understand, thanks.

    Ok, I'll remove the mapping check from the sparc64 flush_dcache()
    function, seems the right thing to do.



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