Reorganize data elements to reduce struct sizes

	 * out in so that future reads from that region will get

	 * zero's.

	 */

	struct page			*w_pages[OCFS2_MAX_CTXT_PAGES];

	unsigned int			w_num_pages;

	struct page			*w_pages[OCFS2_MAX_CTXT_PAGES];

	struct page			*w_target_page;

	/*

	/* These fields are protected by ip_lock */

	spinlock_t			ip_lock;

	u32				ip_open_count;

	u32				ip_clusters;

	struct list_head		ip_io_markers;

	u32				ip_clusters;

	u16				ip_dyn_features;

	struct mutex			ip_io_mutex;

	u32				ip_flags; /* see below */

	u32				ip_attr; /* inode attributes */

	u16				ip_dyn_features;

	/* protected by recovery_lock. */

	struct inode			*ip_next_orphan;

	u32				ip_dir_start_lookup;

	struct ocfs2_caching_info	ip_metadata_cache;

	struct ocfs2_extent_map		ip_extent_map;

	struct inode			vfs_inode;

	struct jbd2_inode		ip_jinode;

	u32				ip_dir_start_lookup;

	/* Only valid if the inode is the dir. */

	u32				ip_last_used_slot;

	u64				ip_last_used_group;

	struct buffer_head        *j_bh;      /* Journal disk inode block */

	atomic_t                  j_num_trans; /* Number of transactions

					        * currently in the system. */

	spinlock_t                j_lock;

	unsigned long             j_trans_id;

	struct rw_semaphore       j_trans_barrier;

	wait_queue_head_t         j_checkpointed;

	spinlock_t                j_lock;

	/* both fields protected by j_lock*/

	struct list_head          j_la_cleanups;

	struct work_struct        j_recovery_work;

};

struct ocfs2_lock_res {

	void                    *l_priv;

	struct ocfs2_lock_res_ops *l_ops;

	spinlock_t               l_lock;

	struct list_head         l_blocked_list;

	struct list_head         l_mask_waiters;

	enum ocfs2_lock_type     l_type;

	unsigned long		 l_flags;

	char                     l_name[OCFS2_LOCK_ID_MAX_LEN];

	int                      l_level;

	unsigned int             l_ro_holders;

	unsigned int             l_ex_holders;

	struct ocfs2_dlm_lksb    l_lksb;

	unsigned char            l_level;

	/* Data packed - type enum ocfs2_lock_type */

	unsigned char            l_type;

	/* used from AST/BAST funcs. */

	enum ocfs2_ast_action    l_action;

	enum ocfs2_unlock_action l_unlock_action;

	int                      l_requested;

	int                      l_blocking;

	/* Data packed - enum type ocfs2_ast_action */

	unsigned char            l_action;

	/* Data packed - enum type ocfs2_unlock_action */

	unsigned char            l_unlock_action;

	unsigned char            l_requested;

	unsigned char            l_blocking;

	unsigned int             l_pending_gen;

	spinlock_t               l_lock;

	struct ocfs2_dlm_lksb    l_lksb;

	wait_queue_head_t        l_event;

	struct list_head         l_debug_list;

	struct rb_node rf_node;

	u64 rf_blkno;

	u32 rf_generation;

	struct kref rf_getcnt;

	struct rw_semaphore rf_sem;

	struct ocfs2_lock_res rf_lockres;

	struct kref rf_getcnt;

	int rf_removed;

	/* the following 4 fields are used by caching_info. */

	struct ocfs2_caching_info rf_ci;

	spinlock_t rf_lock;

	struct ocfs2_caching_info rf_ci;

	struct mutex rf_io_mutex;

	struct super_block *rf_sb;

};