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    SubjectRe: unregistered changes to the user<->kernel API
    On Thu, Jun 14, 2001 at 10:32:49AM -0700, Richard Henderson wrote:
    > within glibc, and (2) making these accesses slower since they
    > will be considered O_DIRECT after the change.

    and then read/write will return -EINVAL which is life-threatening.
    O_DIRECT like rawio via /dev/raw imposes special buffer size and
    alignment (size multiple of softblocksize of the fs and softblocksize
    alignment, at max I can turn it down to hardblocksize without intensive
    changes and guaranteeing zerocopy [modulo bounce buffers on x86 of
    course]).

    So in short at least glibc would need to be replaced...

    Andrea
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