Convert i_next field in struct inode to a LIST

[Matthew Dillon]

:Attached is a simple patch to convert i_next field of struct inode to a
:LIST.
:
:Kindly review and comment/commit.
:
:truely
:dheeraj
:--=-=-=
:Content-Disposition: attachment; filename=diff-inode.txt

    I don't think it needs to be a list, there aren't going to be more
    then a couple of entries in each hash chain (if that), and we need
    to keep that KKASSERT() intact as a safety check.

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>

:...
:-		ipp = INOHASH(ip->i_dev, ip->i_number);
:-		while ((iq = *ipp) != NULL) {
:-			if (ip == iq)
:-				break;
:-			ipp = &iq->i_next;
:-		}
:-		KKASSERT(ip == iq);
:-		*ipp = ip->i_next;
:-		ip->i_next = NULL;
: 		ip->i_flag &= ~IN_HASHED;
:+		LIST_REMOVE(ip, i_hash);
: 	}
: 	lwkt_reltoken(&ilock);
: }