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SubjectRe: The INN/mmap bug


On Mon, 18 Sep 2000, Alexander Viro wrote:

> Except that the only reason why check for page being uptodate is correct
> is that for such pages we are guaranteed that buffer ring will not be
> dropped when page contatins data newer than on disk.

Ugh. Translation:

The only reason why the simple check for page being uptodate is enough to
avoid killing data with bogus rereads is that for pages that are NOT
uptodate we are guaranteed that buffer ring will not be dropped when data
in page is newer than on disk.

Sorry.

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