Re: The INN/mmap bug

From: Alexander Viro (viro@math.psu.edu)
Date: Mon Sep 18 2000 - 15:11:12 EDT

  • Next message: Horst von Brand: "Re: Linux-2.4.0-test9-pre2"

    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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