Re: Buffer and Page cache coherent? was: Strange IDE performancechange in 2.6.1-rc1 (again)

[Andrew Morton]

Mike Fedyk <mfedyk@xxxxxxxxxxxxx> wrote:
>
> On Sat, Jan 03, 2004 at 02:40:03PM -0800, Andrew Morton wrote:
> > No effort was made to optimise buffered blockdev reads because it is not
> > very important and my main interest was in data coherency and filesystem
> > metadata consistency.
> 
> Does that mean that blockdev reads will populate the pagecache in 2.6?

They have since 2.4.10.  The pagecache is the only cacheing entity for file
(and blockdev) data.

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