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    SubjectRe: [PATCH 5/6] vmscan: Write out ranges of pages contiguous to the inode where possible
    On Thu, Jun 10, 2010 at 11:10:45PM -0700, Andrew Morton wrote:
    > I did this, umm ~8 years ago and ended up reverting it because it was
    > complex and didn't seem to buy us anything. Of course, that was before
    > we broke the VM and started writing out lots of LRU pages. That code
    > was better than your code - it grabbed the address_space and did
    > writearound around the target page.

    > Or don't take a look - we shouldn't need to do any of this anyway.

    Doing nearly 100% of the writepage from the flusher threads would
    also be preferable from the filesystem point of view - getting I/O
    from one thread helps to make it more local and work around all the
    stupid I/O controller logic that tries to make our life difficult.

    Of course getting rid of ->writepage from the AOPs API one day would
    also be nice to simplify the filesystems code, but it's not that

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