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SubjectRe: Buffer and page cache

> > - a bit to keep shrink_mmap away from the page.
>
> Yes, bumping the page count is the perfect way to do this.

exactly where would you bump up the page count ? in write() ?
what if there were several writes to the same page ? we can't keep bumping
it up. of course we could abuse the page count by setting a high bit, but
that's ugly.

ganesh

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