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    SubjectRe: VFS 64-bit clean
    Hi All,

    On Tue, Feb 24, 1998 at 10:08:55AM +0100, Pavel Machek wrote:

    > > For example, just to take the simplest example: when people say that
    > > they want 64 bit support, do they mean:
    > >
    > > * support for sparse files greater than 2GB?
    > > * support for files which contain greater than 2**42 bytes of
    > > data
    >
    > This one would be sufficient.
    >
    > > * support for large files that can be mmap'ed, or just read?
    >
    > Reading is enough. Usually, noone tries to mmap such files. (I know,
    > it gets a bit messy...)

    I mmap() large files all the time under Digital Unix, so people do do
    such things.

    One thing I want to add to this discussion is that I think it is important
    for Linux to support as much 64 bit capability on 64 bit hardware as
    possible. Providing 64 bit capability on 32 bit hardware is a more
    difficult, and can be expected to take longer. However, it makes
    Linux look bad when Linux/Alpha or Linux/Ultrasparc can't deal with
    files larger than 2G.

    Just my $0.02,

    Jim

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    Jim Nance Avant! Corporation
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