[SCSI] libfc: cache align struct fc_exch fields

 *	sequence allocation

 */

struct fc_exch {

	spinlock_t	    ex_lock;

	atomic_t	    ex_refcnt;

	enum fc_class	    class;

	struct fc_exch_mgr  *em;

	struct fc_exch_pool *pool;

	u32		    state;

	u16		    xid;

	struct list_head    ex_list;

	spinlock_t	    ex_lock;

	atomic_t	    ex_refcnt;

	struct delayed_work timeout_work;

	struct fc_lport	    *lp;

	u32		    esb_stat;

	u8		    state;

	u8		    fh_type;

	u8		    seq_id;

	u8		    encaps;

	u16		    xid;

	u16		    oxid;

	u16		    rxid;

	u32		    oid;

	u32		    sid;

	u32		    did;

	u32		    esb_stat;

	u32		    r_a_tov;

	u8		    seq_id;

	u8		    encaps;

	u32		    f_ctl;

	u8		    fh_type;

	enum fc_class	    class;

	struct fc_seq       seq;

	void		    (*resp)(struct fc_seq *, struct fc_frame *, void *);

	void		    *arg;

	void		    (*destructor)(struct fc_seq *, void *);

};

	struct delayed_work timeout_work;

} ____cacheline_aligned_in_smp;

#define	fc_seq_exch(sp) container_of(sp, struct fc_exch, seq)