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SubjectRe: BLKRRPART ioctl
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russell@coker.com.au said:
> What exactly do you mean by "start rather than either end"? The
> start is one end...

Your proposal: We disallow the reload if either end of a live partition moves.
Mine: s/either end/the start/


> Also if we change the start of an active partition then we must also
> call the file system code on that partition and tell it to change it's
> offset for everything (significant change). For the end to change we
> just need an IOCTL to advise of the new size.

That's complex. I wouldn't be inclined to let you change the start of an
active partition.

Changing the _finish_, however, shouldn't be too much of a problem. You leave
it up to the user to make sure they resize the filesystem appropriately. So
there's no extra code in the kernel. Just one fewer check for the ioctl.




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