/* Copyright 1996-2000 Hans Reiser, see reiserfs/README for licensing
   * and copyright details */
  
  #ifndef _LINUX_REISER_FS_SB
  #define _LINUX_REISER_FS_SB
  
  #ifdef __KERNEL__
  #include <linux/workqueue.h>
  #include <linux/rwsem.h>

  #include <linux/mutex.h>
  #include <linux/sched.h>

  #endif
  
  typedef enum {

  	reiserfs_attrs_cleared = 0x00000001,

  } reiserfs_super_block_flags;
  
  /* struct reiserfs_super_block accessors/mutators

   * since this is a disk structure, it will always be in

   * little endian format. */
  #define sb_block_count(sbp)         (le32_to_cpu((sbp)->s_v1.s_block_count))
  #define set_sb_block_count(sbp,v)   ((sbp)->s_v1.s_block_count = cpu_to_le32(v))
  #define sb_free_blocks(sbp)         (le32_to_cpu((sbp)->s_v1.s_free_blocks))
  #define set_sb_free_blocks(sbp,v)   ((sbp)->s_v1.s_free_blocks = cpu_to_le32(v))
  #define sb_root_block(sbp)          (le32_to_cpu((sbp)->s_v1.s_root_block))
  #define set_sb_root_block(sbp,v)    ((sbp)->s_v1.s_root_block = cpu_to_le32(v))
  
  #define sb_jp_journal_1st_block(sbp)  \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_1st_block))
  #define set_sb_jp_journal_1st_block(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_1st_block = cpu_to_le32(v))
  #define sb_jp_journal_dev(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_dev))
  #define set_sb_jp_journal_dev(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_dev = cpu_to_le32(v))
  #define sb_jp_journal_size(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_size))
  #define set_sb_jp_journal_size(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_size = cpu_to_le32(v))
  #define sb_jp_journal_trans_max(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_trans_max))
  #define set_sb_jp_journal_trans_max(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_trans_max = cpu_to_le32(v))
  #define sb_jp_journal_magic(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_magic))
  #define set_sb_jp_journal_magic(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_magic = cpu_to_le32(v))
  #define sb_jp_journal_max_batch(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_max_batch))
  #define set_sb_jp_journal_max_batch(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_max_batch = cpu_to_le32(v))
  #define sb_jp_jourmal_max_commit_age(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_max_commit_age))
  #define set_sb_jp_journal_max_commit_age(sbp,v) \
                ((sbp)->s_v1.s_journal.jp_journal_max_commit_age = cpu_to_le32(v))
  
  #define sb_blocksize(sbp)          (le16_to_cpu((sbp)->s_v1.s_blocksize))
  #define set_sb_blocksize(sbp,v)    ((sbp)->s_v1.s_blocksize = cpu_to_le16(v))
  #define sb_oid_maxsize(sbp)        (le16_to_cpu((sbp)->s_v1.s_oid_maxsize))
  #define set_sb_oid_maxsize(sbp,v)  ((sbp)->s_v1.s_oid_maxsize = cpu_to_le16(v))
  #define sb_oid_cursize(sbp)        (le16_to_cpu((sbp)->s_v1.s_oid_cursize))
  #define set_sb_oid_cursize(sbp,v)  ((sbp)->s_v1.s_oid_cursize = cpu_to_le16(v))
  #define sb_umount_state(sbp)       (le16_to_cpu((sbp)->s_v1.s_umount_state))
  #define set_sb_umount_state(sbp,v) ((sbp)->s_v1.s_umount_state = cpu_to_le16(v))
  #define sb_fs_state(sbp)           (le16_to_cpu((sbp)->s_v1.s_fs_state))

  #define set_sb_fs_state(sbp,v)     ((sbp)->s_v1.s_fs_state = cpu_to_le16(v))

  #define sb_hash_function_code(sbp) \
                (le32_to_cpu((sbp)->s_v1.s_hash_function_code))
  #define set_sb_hash_function_code(sbp,v) \
                ((sbp)->s_v1.s_hash_function_code = cpu_to_le32(v))
  #define sb_tree_height(sbp)        (le16_to_cpu((sbp)->s_v1.s_tree_height))
  #define set_sb_tree_height(sbp,v)  ((sbp)->s_v1.s_tree_height = cpu_to_le16(v))
  #define sb_bmap_nr(sbp)            (le16_to_cpu((sbp)->s_v1.s_bmap_nr))
  #define set_sb_bmap_nr(sbp,v)      ((sbp)->s_v1.s_bmap_nr = cpu_to_le16(v))
  #define sb_version(sbp)            (le16_to_cpu((sbp)->s_v1.s_version))
  #define set_sb_version(sbp,v)      ((sbp)->s_v1.s_version = cpu_to_le16(v))

  #define sb_mnt_count(sbp)	   (le16_to_cpu((sbp)->s_mnt_count))
  #define set_sb_mnt_count(sbp, v)   ((sbp)->s_mnt_count = cpu_to_le16(v))

  #define sb_reserved_for_journal(sbp) \
                (le16_to_cpu((sbp)->s_v1.s_reserved_for_journal))
  #define set_sb_reserved_for_journal(sbp,v) \
                ((sbp)->s_v1.s_reserved_for_journal = cpu_to_le16(v))
  
  /* LOGGING -- */

  /* These all interelate for performance.

  **

  ** If the journal block count is smaller than n transactions, you lose speed.

  ** I don't know what n is yet, I'm guessing 8-16.
  **
  ** typical transaction size depends on the application, how often fsync is

  ** called, and how many metadata blocks you dirty in a 30 second period.

  ** The more small files (<16k) you use, the larger your transactions will
  ** be.

  **

  ** If your journal fills faster than dirty buffers get flushed to disk, it must flush them before allowing the journal
  ** to wrap, which slows things down.  If you need high speed meta data updates, the journal should be big enough
  ** to prevent wrapping before dirty meta blocks get to disk.
  **
  ** If the batch max is smaller than the transaction max, you'll waste space at the end of the journal
  ** because journal_end sets the next transaction to start at 0 if the next transaction has any chance of wrapping.
  **
  ** The large the batch max age, the better the speed, and the more meta data changes you'll lose after a crash.
  **
  */
  
  /* don't mess with these for a while */
  				/* we have a node size define somewhere in reiserfs_fs.h. -Hans */

  #define JOURNAL_BLOCK_SIZE  4096	/* BUG gotta get rid of this */
  #define JOURNAL_MAX_CNODE   1500	/* max cnodes to allocate. */
  #define JOURNAL_HASH_SIZE 8192
  #define JOURNAL_NUM_BITMAPS 5	/* number of copies of the bitmaps to have floating.  Must be >= 2 */

  
  /* One of these for every block in every transaction
  ** Each one is in two hash tables.  First, a hash of the current transaction, and after journal_end, a
  ** hash of all the in memory transactions.
  ** next and prev are used by the current transaction (journal_hash).
  ** hnext and hprev are used by journal_list_hash.  If a block is in more than one transaction, the journal_list_hash
  ** links it in multiple times.  This allows flush_journal_list to remove just the cnode belonging
  ** to a given transaction.
  */
  struct reiserfs_journal_cnode {

  	struct buffer_head *bh;	/* real buffer head */
  	struct super_block *sb;	/* dev of real buffer head */
  	__u32 blocknr;		/* block number of real buffer head, == 0 when buffer on disk */

  	unsigned long state;

  	struct reiserfs_journal_list *jlist;	/* journal list this cnode lives in */
  	struct reiserfs_journal_cnode *next;	/* next in transaction list */
  	struct reiserfs_journal_cnode *prev;	/* prev in transaction list */
  	struct reiserfs_journal_cnode *hprev;	/* prev in hash list */
  	struct reiserfs_journal_cnode *hnext;	/* next in hash list */

  };
  
  struct reiserfs_bitmap_node {

  	int id;
  	char *data;
  	struct list_head list;
  };

  
  struct reiserfs_list_bitmap {

  	struct reiserfs_journal_list *journal_list;
  	struct reiserfs_bitmap_node **bitmaps;
  };

  
  /*
  ** one of these for each transaction.  The most important part here is the j_realblock.
  ** this list of cnodes is used to hash all the blocks in all the commits, to mark all the
  ** real buffer heads dirty once all the commits hit the disk,
  ** and to make sure every real block in a transaction is on disk before allowing the log area
  ** to be overwritten */
  struct reiserfs_journal_list {

  	unsigned long j_start;
  	unsigned long j_state;
  	unsigned long j_len;
  	atomic_t j_nonzerolen;
  	atomic_t j_commit_left;
  	atomic_t j_older_commits_done;	/* all commits older than this on disk */

  	struct mutex j_commit_mutex;

  	unsigned int j_trans_id;

  	time_t j_timestamp;
  	struct reiserfs_list_bitmap *j_list_bitmap;
  	struct buffer_head *j_commit_bh;	/* commit buffer head */
  	struct reiserfs_journal_cnode *j_realblock;
  	struct reiserfs_journal_cnode *j_freedlist;	/* list of buffers that were freed during this trans.  free each of these on flush */
  	/* time ordered list of all active transactions */
  	struct list_head j_list;
  
  	/* time ordered list of all transactions we haven't tried to flush yet */
  	struct list_head j_working_list;
  
  	/* list of tail conversion targets in need of flush before commit */
  	struct list_head j_tail_bh_list;
  	/* list of data=ordered buffers in need of flush before commit */
  	struct list_head j_bh_list;
  	int j_refcount;
  };

  
  struct reiserfs_journal {

  	struct buffer_head **j_ap_blocks;	/* journal blocks on disk */
  	struct reiserfs_journal_cnode *j_last;	/* newest journal block */
  	struct reiserfs_journal_cnode *j_first;	/*  oldest journal block.  start here for traverse */

  	struct block_device *j_dev_bd;

  	fmode_t j_dev_mode;

  	int j_1st_reserved_block;	/* first block on s_dev of reserved area journal */

  	unsigned long j_state;

  	unsigned int j_trans_id;

  	unsigned long j_mount_id;
  	unsigned long j_start;	/* start of current waiting commit (index into j_ap_blocks) */

  	unsigned long j_len;	/* length of current waiting commit */

  	unsigned long j_len_alloc;	/* number of buffers requested by journal_begin() */
  	atomic_t j_wcount;	/* count of writers for current commit */
  	unsigned long j_bcount;	/* batch count. allows turning X transactions into 1 */
  	unsigned long j_first_unflushed_offset;	/* first unflushed transactions offset */

  	unsigned j_last_flush_trans_id;	/* last fully flushed journal timestamp */

  	struct buffer_head *j_header_bh;
  
  	time_t j_trans_start_time;	/* time this transaction started */

  	struct mutex j_mutex;

  	struct mutex j_flush_mutex;

  	wait_queue_head_t j_join_wait;	/* wait for current transaction to finish before starting new one */
  	atomic_t j_jlock;	/* lock for j_join_wait */
  	int j_list_bitmap_index;	/* number of next list bitmap to use */
  	int j_must_wait;	/* no more journal begins allowed. MUST sleep on j_join_wait */
  	int j_next_full_flush;	/* next journal_end will flush all journal list */
  	int j_next_async_flush;	/* next journal_end will flush all async commits */
  
  	int j_cnode_used;	/* number of cnodes on the used list */
  	int j_cnode_free;	/* number of cnodes on the free list */
  
  	unsigned int j_trans_max;	/* max number of blocks in a transaction.  */
  	unsigned int j_max_batch;	/* max number of blocks to batch into a trans */
  	unsigned int j_max_commit_age;	/* in seconds, how old can an async commit be */
  	unsigned int j_max_trans_age;	/* in seconds, how old can a transaction be */
  	unsigned int j_default_max_commit_age;	/* the default for the max commit age */
  
  	struct reiserfs_journal_cnode *j_cnode_free_list;
  	struct reiserfs_journal_cnode *j_cnode_free_orig;	/* orig pointer returned from vmalloc */
  
  	struct reiserfs_journal_list *j_current_jl;
  	int j_free_bitmap_nodes;
  	int j_used_bitmap_nodes;
  
  	int j_num_lists;	/* total number of active transactions */
  	int j_num_work_lists;	/* number that need attention from kreiserfsd */
  
  	/* debugging to make sure things are flushed in order */

  	unsigned int j_last_flush_id;

  
  	/* debugging to make sure things are committed in order */

  	unsigned int j_last_commit_id;

  
  	struct list_head j_bitmap_nodes;
  	struct list_head j_dirty_buffers;
  	spinlock_t j_dirty_buffers_lock;	/* protects j_dirty_buffers */
  
  	/* list of all active transactions */
  	struct list_head j_journal_list;
  	/* lists that haven't been touched by writeback attempts */
  	struct list_head j_working_list;
  
  	struct reiserfs_list_bitmap j_list_bitmap[JOURNAL_NUM_BITMAPS];	/* array of bitmaps to record the deleted blocks */
  	struct reiserfs_journal_cnode *j_hash_table[JOURNAL_HASH_SIZE];	/* hash table for real buffer heads in current trans */

  	struct reiserfs_journal_cnode *j_list_hash_table[JOURNAL_HASH_SIZE];	/* hash table for all the real buffer heads in all

  										   the transactions */
  	struct list_head j_prealloc_list;	/* list of inodes which have preallocated blocks */
  	int j_persistent_trans;
  	unsigned long j_max_trans_size;
  	unsigned long j_max_batch_size;
  
  	int j_errno;
  
  	/* when flushing ordered buffers, throttle new ordered writers */

  	struct delayed_work j_work;
  	struct super_block *j_work_sb;

  	atomic_t j_async_throttle;

  };
  
  enum journal_state_bits {

  	J_WRITERS_BLOCKED = 1,	/* set when new writers not allowed */
  	J_WRITERS_QUEUED,	/* set when log is full due to too many writers */
  	J_ABORTED,		/* set when log is aborted */

  };

  #define JOURNAL_DESC_MAGIC "ReIsErLB"	/* ick.  magic string to find desc blocks in the journal */

  typedef __u32(*hashf_t) (const signed char *, int);

  struct reiserfs_bitmap_info {

  	__u32 free_count;

  };
  
  struct proc_dir_entry;
  
  #if defined( CONFIG_PROC_FS ) && defined( CONFIG_REISERFS_PROC_INFO )
  typedef unsigned long int stat_cnt_t;

  typedef struct reiserfs_proc_info_data {
  	spinlock_t lock;
  	int exiting;
  	int max_hash_collisions;
  
  	stat_cnt_t breads;
  	stat_cnt_t bread_miss;
  	stat_cnt_t search_by_key;
  	stat_cnt_t search_by_key_fs_changed;
  	stat_cnt_t search_by_key_restarted;
  
  	stat_cnt_t insert_item_restarted;
  	stat_cnt_t paste_into_item_restarted;
  	stat_cnt_t cut_from_item_restarted;
  	stat_cnt_t delete_solid_item_restarted;
  	stat_cnt_t delete_item_restarted;
  
  	stat_cnt_t leaked_oid;
  	stat_cnt_t leaves_removable;
  
  	/* balances per level. Use explicit 5 as MAX_HEIGHT is not visible yet. */
  	stat_cnt_t balance_at[5];	/* XXX */
  	/* sbk == search_by_key */
  	stat_cnt_t sbk_read_at[5];	/* XXX */
  	stat_cnt_t sbk_fs_changed[5];
  	stat_cnt_t sbk_restarted[5];
  	stat_cnt_t items_at[5];	/* XXX */
  	stat_cnt_t free_at[5];	/* XXX */
  	stat_cnt_t can_node_be_removed[5];	/* XXX */
  	long int lnum[5];	/* XXX */
  	long int rnum[5];	/* XXX */
  	long int lbytes[5];	/* XXX */
  	long int rbytes[5];	/* XXX */
  	stat_cnt_t get_neighbors[5];
  	stat_cnt_t get_neighbors_restart[5];
  	stat_cnt_t need_l_neighbor[5];
  	stat_cnt_t need_r_neighbor[5];
  
  	stat_cnt_t free_block;
  	struct __scan_bitmap_stats {
  		stat_cnt_t call;
  		stat_cnt_t wait;
  		stat_cnt_t bmap;
  		stat_cnt_t retry;
  		stat_cnt_t in_journal_hint;
  		stat_cnt_t in_journal_nohint;
  		stat_cnt_t stolen;
  	} scan_bitmap;
  	struct __journal_stats {
  		stat_cnt_t in_journal;
  		stat_cnt_t in_journal_bitmap;
  		stat_cnt_t in_journal_reusable;
  		stat_cnt_t lock_journal;
  		stat_cnt_t lock_journal_wait;
  		stat_cnt_t journal_being;
  		stat_cnt_t journal_relock_writers;
  		stat_cnt_t journal_relock_wcount;
  		stat_cnt_t mark_dirty;
  		stat_cnt_t mark_dirty_already;
  		stat_cnt_t mark_dirty_notjournal;
  		stat_cnt_t restore_prepared;
  		stat_cnt_t prepare;
  		stat_cnt_t prepare_retry;
  	} journal;

  } reiserfs_proc_info_data_t;
  #else

  typedef struct reiserfs_proc_info_data {
  } reiserfs_proc_info_data_t;

  #endif
  
  /* reiserfs union of in-core super block data */

  struct reiserfs_sb_info {
  	struct buffer_head *s_sbh;	/* Buffer containing the super block */
  	/* both the comment and the choice of
  	   name are unclear for s_rs -Hans */
  	struct reiserfs_super_block *s_rs;	/* Pointer to the super block in the buffer */
  	struct reiserfs_bitmap_info *s_ap_bitmap;
  	struct reiserfs_journal *s_journal;	/* pointer to journal information */
  	unsigned short s_mount_state;	/* reiserfs state (valid, invalid) */

  	/* Serialize writers access, replace the old bkl */
  	struct mutex lock;
  	/* Owner of the lock (can be recursive) */
  	struct task_struct *lock_owner;
  	/* Depth of the lock, start from -1 like the bkl */
  	int lock_depth;

  	/* Comment? -Hans */
  	void (*end_io_handler) (struct buffer_head *, int);
  	hashf_t s_hash_function;	/* pointer to function which is used
  					   to sort names in directory. Set on
  					   mount */
  	unsigned long s_mount_opt;	/* reiserfs's mount options are set
  					   here (currently - NOTAIL, NOLOG,
  					   REPLAYONLY) */
  
  	struct {		/* This is a structure that describes block allocator options */
  		unsigned long bits;	/* Bitfield for enable/disable kind of options */
  		unsigned long large_file_size;	/* size started from which we consider file to be a large one(in blocks) */
  		int border;	/* percentage of disk, border takes */
  		int preallocmin;	/* Minimal file size (in blocks) starting from which we do preallocations */
  		int preallocsize;	/* Number of blocks we try to prealloc when file
  					   reaches preallocmin size (in blocks) or
  					   prealloc_list is empty. */
  	} s_alloc_options;
  
  	/* Comment? -Hans */
  	wait_queue_head_t s_wait;
  	/* To be obsoleted soon by per buffer seals.. -Hans */
  	atomic_t s_generation_counter;	// increased by one every time the
  	// tree gets re-balanced
  	unsigned long s_properties;	/* File system properties. Currently holds
  					   on-disk FS format */
  
  	/* session statistics */

  	int s_disk_reads;
  	int s_disk_writes;
  	int s_fix_nodes;
  	int s_do_balance;
  	int s_unneeded_left_neighbor;
  	int s_good_search_by_key_reada;
  	int s_bmaps;
  	int s_bmaps_without_search;
  	int s_direct2indirect;
  	int s_indirect2direct;

  	/* set up when it's ok for reiserfs_read_inode2() to read from
  	   disk inode with nlink==0. Currently this is only used during
  	   finish_unfinished() processing at mount time */

  	int s_is_unlinked_ok;
  	reiserfs_proc_info_data_t s_proc_info_data;
  	struct proc_dir_entry *procdir;
  	int reserved_blocks;	/* amount of blocks reserved for further allocations */
  	spinlock_t bitmap_lock;	/* this lock on now only used to protect reserved_blocks variable */
  	struct dentry *priv_root;	/* root of /.reiserfs_priv */

  	struct dentry *xattr_root;	/* root of /.reiserfs_priv/xattrs */

  	int j_errno;

  #ifdef CONFIG_QUOTA

  	char *s_qf_names[MAXQUOTAS];
  	int s_jquota_fmt;

  #endif

  #ifdef CONFIG_REISERFS_CHECK
  
  	struct tree_balance *cur_tb;	/*
  					 * Detects whether more than one
  					 * copy of tb exists per superblock
  					 * as a means of checking whether
  					 * do_balance is executing concurrently
  					 * against another tree reader/writer
  					 * on a same mount point.
  					 */
  #endif

  };
  
  /* Definitions of reiserfs on-disk properties: */
  #define REISERFS_3_5 0
  #define REISERFS_3_6 1

  #define REISERFS_OLD_FORMAT 2

  
  enum reiserfs_mount_options {
  /* Mount options */

  	REISERFS_LARGETAIL,	/* large tails will be created in a session */
  	REISERFS_SMALLTAIL,	/* small (for files less than block size) tails will be created in a session */
  	REPLAYONLY,		/* replay journal and return 0. Use by fsck */
  	REISERFS_CONVERT,	/* -o conv: causes conversion of old
  				   format super block to the new
  				   format. If not specified - old
  				   partition will be dealt with in a
  				   manner of 3.5.x */

  /* -o hash={tea, rupasov, r5, detect} is meant for properly mounting

  ** reiserfs disks from 3.5.19 or earlier.  99% of the time, this option
  ** is not required.  If the normal autodection code can't determine which

  ** hash to use (because both hashes had the same value for a file)

  ** use this option to force a specific hash.  It won't allow you to override
  ** the existing hash on the FS, so if you have a tea hash disk, and mount
  ** with -o hash=rupasov, the mount will fail.
  */

  	FORCE_TEA_HASH,		/* try to force tea hash on mount */
  	FORCE_RUPASOV_HASH,	/* try to force rupasov hash on mount */
  	FORCE_R5_HASH,		/* try to force rupasov hash on mount */
  	FORCE_HASH_DETECT,	/* try to detect hash function on mount */

  	REISERFS_DATA_LOG,
  	REISERFS_DATA_ORDERED,
  	REISERFS_DATA_WRITEBACK,

  
  /* used for testing experimental features, makes benchmarking new
     features with and without more convenient, should never be used by
     users in any code shipped to users (ideally) */

  	REISERFS_NO_BORDER,
  	REISERFS_NO_UNHASHED_RELOCATION,
  	REISERFS_HASHED_RELOCATION,
  	REISERFS_ATTRS,

  	REISERFS_XATTRS_USER,
  	REISERFS_POSIXACL,

  	REISERFS_EXPOSE_PRIVROOT,

  	REISERFS_BARRIER_NONE,
  	REISERFS_BARRIER_FLUSH,
  
  	/* Actions on error */
  	REISERFS_ERROR_PANIC,
  	REISERFS_ERROR_RO,
  	REISERFS_ERROR_CONTINUE,
  
  	REISERFS_QUOTA,		/* Some quota option specified */
  
  	REISERFS_TEST1,
  	REISERFS_TEST2,
  	REISERFS_TEST3,
  	REISERFS_TEST4,
  	REISERFS_UNSUPPORTED_OPT,

  };
  
  #define reiserfs_r5_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_R5_HASH))
  #define reiserfs_rupasov_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_RUPASOV_HASH))
  #define reiserfs_tea_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_TEA_HASH))
  #define reiserfs_hash_detect(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_HASH_DETECT))
  #define reiserfs_no_border(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_NO_BORDER))
  #define reiserfs_no_unhashed_relocation(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_NO_UNHASHED_RELOCATION))
  #define reiserfs_hashed_relocation(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_HASHED_RELOCATION))
  #define reiserfs_test4(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TEST4))
  
  #define have_large_tails(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_LARGETAIL))
  #define have_small_tails(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_SMALLTAIL))
  #define replay_only(s) (REISERFS_SB(s)->s_mount_opt & (1 << REPLAYONLY))
  #define reiserfs_attrs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ATTRS))
  #define old_format_only(s) (REISERFS_SB(s)->s_properties & (1 << REISERFS_3_5))
  #define convert_reiserfs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_CONVERT))
  #define reiserfs_data_log(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_LOG))
  #define reiserfs_data_ordered(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_ORDERED))
  #define reiserfs_data_writeback(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK))

  #define reiserfs_xattrs_user(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS_USER))
  #define reiserfs_posixacl(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_POSIXACL))

  #define reiserfs_expose_privroot(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_EXPOSE_PRIVROOT))

  #define reiserfs_xattrs_optional(s) (reiserfs_xattrs_user(s) || reiserfs_posixacl(s))
  #define reiserfs_barrier_none(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_BARRIER_NONE))
  #define reiserfs_barrier_flush(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_BARRIER_FLUSH))
  
  #define reiserfs_error_panic(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ERROR_PANIC))
  #define reiserfs_error_ro(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ERROR_RO))

  void reiserfs_file_buffer(struct buffer_head *bh, int list);

  extern struct file_system_type reiserfs_fs_type;

  int reiserfs_resize(struct super_block *, unsigned long);

  
  #define CARRY_ON                0
  #define SCHEDULE_OCCURRED       1

  #define SB_BUFFER_WITH_SB(s) (REISERFS_SB(s)->s_sbh)
  #define SB_JOURNAL(s) (REISERFS_SB(s)->s_journal)
  #define SB_JOURNAL_1st_RESERVED_BLOCK(s) (SB_JOURNAL(s)->j_1st_reserved_block)

  #define SB_JOURNAL_LEN_FREE(s) (SB_JOURNAL(s)->j_journal_len_free)

  #define SB_AP_BITMAP(s) (REISERFS_SB(s)->s_ap_bitmap)
  
  #define SB_DISK_JOURNAL_HEAD(s) (SB_JOURNAL(s)->j_header_bh->)
  
  /* A safe version of the "bdevname", which returns the "s_id" field of
   * a superblock or else "Null superblock" if the super block is NULL.
   */
  static inline char *reiserfs_bdevname(struct super_block *s)
  {

  	return (s == NULL) ? "Null superblock" : s->s_id;

  }
  
  #define reiserfs_is_journal_aborted(journal) (unlikely (__reiserfs_is_journal_aborted (journal)))

  static inline int __reiserfs_is_journal_aborted(struct reiserfs_journal
  						*journal)

  {

  	return test_bit(J_ABORTED, &journal->j_state);

  }

  #endif				/* _LINUX_REISER_FS_SB */