Re: Buffer cache

[Tigran Aivazian]

On Fri, 11 Aug 2000, Kay Salzwedel wrote:
> I have a question concerning the buffer cache. Suppose I read data from
> a file into a local variable and change it. What happen whe I read it
> again? Does linux read from the file or from the buffer cache?

neither. From the page cache really, but _really_ you don't need to know.
All you need to know is that the filesystem and VM views of the object is
coherent with its "real" representation on the backing store.

Regards,
Tigran