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Subjectpage cache and buffer cache in 2.4.18 and up
Date
Hi,
Since the change in kernel 2.4, read and writes go both through the page and
buffer cache. Is the cached data held twice (i.e. uses twice the memory)? I
noticed that the struct page holds a pointer to a buffer-head list; does
that list contain actual data, or just pointers into the cached page data?

Thanks,
Amir.


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