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SubjectRe: Buffer and Page cache coherent? was: Strange IDE performance change in 2.6.1-rc1 (again)
Mike Fedyk <> wrote:
> So in what way is the buffer cache coherent with the pagecache?

There is no "buffer cache" in Linux. There is a pagecache for /etc/passwd
and there is a pagecache for /dev/hda1. They are treated pretty much
identically. The kernel attaches buffer_heads to those pagecache pages
when needed - generally when it wants to deal with individual disk blocks.

> Any progress on that pagecache coherent block relocation patch you had for
> ext3? :)

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