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    SubjectRe: [PATCH 10/13: eCryptfs] Mmap operations
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    On Thu, 2006-05-04 at 22:43 +0100, David Howells wrote:
    > > When writing CacheFiles, I noticed that ext3 would occasionally unlock a page
    > > that had neither PG_uptodate nor PG_error set, and so I had to force another
    > > readpage() on it.

    On Fri, 2006-05-05 at 10:22 -0500, Dave Kleikamp wrote:
    > I understand this comes from the FiST package. In that code, there is a
    > comment in one of these functions explaining the second read. It would
    > be nice to have that comment in here too:
    >
    > /*
    > * call readpage() again if we returned from wait_on_page with a
    > * page that's not up-to-date; that can happen when a partial
    > * page has a few buffers which are ok, but not the whole
    > * page.
    > */
    >
    > I'm a bit surprised that this could happen.

    Me too. How do we know we don't end up the same way for the second read?

    Pekka

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