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    SubjectRe: [RFC] generic IO write clustering

    On Sat, 20 Jan 2001, Christoph Hellwig wrote:

    > On Sat, Jan 20, 2001 at 02:00:24PM -0200, Marcelo Tosatti wrote:
    > > > True. But you have to go through ext2_get_branch (under the big kernel
    > > > lock) - if we can do only one logical->physical block translations,
    > > > why doing it multiple times?
    > >
    > > You dont. If the metadata is cached and uptodate there is no need to call
    > > get_block().
    > Ups. You are right for the stock tree - I was only looking at my kio tree,
    > where it can't be cached due to the lack of buffer-cache usage...

    Must be fixed.

    We need a higher level abstraction which can hold this (and other)

    Take a look at SGI's pagebuf page_buf_t.

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