staging: lustre: obdclass: remove structure holes to reduce memory

	unsigned long	  rs_committed:1;/* the transaction was committed

					  * and the rs was dispatched

					  */

	atomic_t		rs_refcount;	/* number of users */

	/** Number of locks awaiting client ACK */

	int			rs_nlocks;

	/** Size of the state */

	int		    rs_size;

	/** opcode */

	struct ptlrpc_service_part *rs_svcpt;

	/** Lnet metadata handle for the reply */

	lnet_handle_md_t       rs_md_h;

	atomic_t	   rs_refcount;

	/** Context for the service thread */

	struct ptlrpc_svc_ctx *rs_svc_ctx;

	 */

	struct lustre_msg     *rs_msg;	  /* reply message */

	/** Number of locks awaiting client ACK */

	int		    rs_nlocks;

	/** Handles of locks awaiting client reply ACK */

	struct lustre_handle   rs_locks[RS_MAX_LOCKS];

	/** Lock modes of locks in \a rs_locks */

	__u32		lnb_page_offset;

	__u32		lnb_len;

	__u32		lnb_flags;

	int		lnb_rc;

	struct page	*lnb_page;

	void		*lnb_data;

	int		lnb_rc;

};

#define LUSTRE_FLD_NAME	 "fld"

struct obd_device {

	struct obd_type	*obd_type;

	__u32		   obd_magic;

	u32			 obd_magic; /* OBD_DEVICE_MAGIC */

	int			 obd_minor; /* device number: lctl dl */

	struct lu_device	*obd_lu_dev;

	/* common and UUID name of this device */

	char		    obd_name[MAX_OBD_NAME];

	struct obd_uuid		 obd_uuid;

	char			 obd_name[MAX_OBD_NAME];

	struct lu_device       *obd_lu_dev;

	int		     obd_minor;

	/* bitfield modification is protected by obd_dev_lock */

	unsigned long obd_attached:1,      /* finished attach */

		      obd_set_up:1,	/* finished setup */

	unsigned long obd_recovery_expired:1;

	/* uuid-export hash body */

	struct cfs_hash	     *obd_uuid_hash;

	atomic_t	    obd_refcount;

	wait_queue_head_t	     obd_refcount_waitq;

	struct list_head	      obd_exports;

	struct list_head	      obd_unlinked_exports;

	struct list_head	      obd_delayed_exports;

	atomic_t			obd_refcount;

	int		     obd_num_exports;

	spinlock_t		obd_nid_lock;

	struct ldlm_namespace  *obd_namespace;

	struct ptlrpc_client	obd_ldlm_client; /* XXX OST/MDS only */

	/* a spinlock is OK for what we do now, may need a semaphore later */

	spinlock_t		obd_dev_lock; /* protect OBD bitfield above */

	struct mutex		obd_dev_mutex;

	__u64			obd_last_committed;

	spinlock_t		obd_osfs_lock;

	struct obd_statfs	obd_osfs;       /* locked by obd_osfs_lock */

	__u64			obd_osfs_age;

	u64			obd_last_committed;

	struct mutex		obd_dev_mutex;

	struct lvfs_run_ctxt	obd_lvfs_ctxt;

	struct obd_llog_group	obd_olg;	/* default llog group */

	struct obd_device	*obd_observer;

		struct lov_obd lov;

		struct lmv_obd lmv;

	} u;

	/* Fields used by LProcFS */

	unsigned int	   obd_cntr_base;

	struct lprocfs_stats	*obd_stats;

	unsigned int		 obd_cntr_base;

	unsigned int	   md_cntr_base;

	struct lprocfs_stats	*md_stats;

	unsigned int		 md_cntr_base;

	struct dentry		*obd_debugfs_entry;

	struct dentry		*obd_svc_debugfs_entry;

	 * Ldlm pool part. Save last calculated SLV and Limit.

	 */

	rwlock_t		 obd_pool_lock;

	u64			 obd_pool_slv;

	int			 obd_pool_limit;

	__u64		  obd_pool_slv;

	int			 obd_conn_inprogress;

	/**

	 * A list of outstanding class_incref()'s against this obd. For

	 */

	struct lu_ref	  obd_reference;

	int		       obd_conn_inprogress;

	struct kobject		obd_kobj; /* sysfs object */

	struct completion	obd_kobj_unregister;

};