Yes, LVM totally abuses kdev_t (assumes = dev_t in user space).
Changing kdev_t should force this to be cleaned up.
> The second one is the use of a special constant B_FREE
> as device value to indicate that the buffer is free.
> I'll look at this tomorrow but perhaps someone knows:
> must the constant B_FREE (used only in fs/buffer.c) be nonzero?
> If so, then we probably need a bitfield to indicate "free".
> Otherwise we can use 0 ("no device") as value.
Isn't a device = 0 used for NFS root?
Cheers, Andreas
--
Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto,
\ would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert
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