The problem is that off_t is a signed integer. Hence, we're
limited to 2**31 bytes. It might be possible to kludge in support
for 3GB using llseek, but I wouldn't guarantee that this would work
before meditating deeply on the VM layer --- in case there's
another 31-bit limit/assumption lurking somewhere else in the VM
layer.
page->offset needs to be fixed as well, if you have not
considered this already...
Later,
David S. Miller
davem@dm.cobaltmicro.com
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