ReactOS  0.4.13-dev-479-gec9c8fd
reiserfs_fs_sb.h
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1 /* Copyright 1996-2000 Hans Reiser, see reiserfs/README for licensing
2  * and copyright details */
3 
4 #ifndef _LINUX_REISER_FS_SB
5 #define _LINUX_REISER_FS_SB
6 
7 #ifdef __KERNEL__
8 #include <linux/workqueue.h>
9 #include <linux/rwsem.h>
10 #endif
11 
12 typedef enum {
13  reiserfs_attrs_cleared = 0x00000001,
15 
16 /* struct reiserfs_super_block accessors/mutators
17  * since this is a disk structure, it will always be in
18  * little endian format. */
19 #define sb_block_count(sbp) (le32_to_cpu((sbp)->s_v1.s_block_count))
20 #define set_sb_block_count(sbp,v) ((sbp)->s_v1.s_block_count = cpu_to_le32(v))
21 #define sb_free_blocks(sbp) (le32_to_cpu((sbp)->s_v1.s_free_blocks))
22 #define set_sb_free_blocks(sbp,v) ((sbp)->s_v1.s_free_blocks = cpu_to_le32(v))
23 #define sb_root_block(sbp) (le32_to_cpu((sbp)->s_v1.s_root_block))
24 #define set_sb_root_block(sbp,v) ((sbp)->s_v1.s_root_block = cpu_to_le32(v))
25 
26 #define sb_jp_journal_1st_block(sbp) \
27  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_1st_block))
28 #define set_sb_jp_journal_1st_block(sbp,v) \
29  ((sbp)->s_v1.s_journal.jp_journal_1st_block = cpu_to_le32(v))
30 #define sb_jp_journal_dev(sbp) \
31  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_dev))
32 #define set_sb_jp_journal_dev(sbp,v) \
33  ((sbp)->s_v1.s_journal.jp_journal_dev = cpu_to_le32(v))
34 #define sb_jp_journal_size(sbp) \
35  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_size))
36 #define set_sb_jp_journal_size(sbp,v) \
37  ((sbp)->s_v1.s_journal.jp_journal_size = cpu_to_le32(v))
38 #define sb_jp_journal_trans_max(sbp) \
39  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_trans_max))
40 #define set_sb_jp_journal_trans_max(sbp,v) \
41  ((sbp)->s_v1.s_journal.jp_journal_trans_max = cpu_to_le32(v))
42 #define sb_jp_journal_magic(sbp) \
43  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_magic))
44 #define set_sb_jp_journal_magic(sbp,v) \
45  ((sbp)->s_v1.s_journal.jp_journal_magic = cpu_to_le32(v))
46 #define sb_jp_journal_max_batch(sbp) \
47  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_max_batch))
48 #define set_sb_jp_journal_max_batch(sbp,v) \
49  ((sbp)->s_v1.s_journal.jp_journal_max_batch = cpu_to_le32(v))
50 #define sb_jp_jourmal_max_commit_age(sbp) \
51  (le32_to_cpu((sbp)->s_v1.s_journal.jp_journal_max_commit_age))
52 #define set_sb_jp_journal_max_commit_age(sbp,v) \
53  ((sbp)->s_v1.s_journal.jp_journal_max_commit_age = cpu_to_le32(v))
54 
55 #define sb_blocksize(sbp) (le16_to_cpu((sbp)->s_v1.s_blocksize))
56 #define set_sb_blocksize(sbp,v) ((sbp)->s_v1.s_blocksize = cpu_to_le16(v))
57 #define sb_oid_maxsize(sbp) (le16_to_cpu((sbp)->s_v1.s_oid_maxsize))
58 #define set_sb_oid_maxsize(sbp,v) ((sbp)->s_v1.s_oid_maxsize = cpu_to_le16(v))
59 #define sb_oid_cursize(sbp) (le16_to_cpu((sbp)->s_v1.s_oid_cursize))
60 #define set_sb_oid_cursize(sbp,v) ((sbp)->s_v1.s_oid_cursize = cpu_to_le16(v))
61 #define sb_umount_state(sbp) (le16_to_cpu((sbp)->s_v1.s_umount_state))
62 #define set_sb_umount_state(sbp,v) ((sbp)->s_v1.s_umount_state = cpu_to_le16(v))
63 #define sb_fs_state(sbp) (le16_to_cpu((sbp)->s_v1.s_fs_state))
64 #define set_sb_fs_state(sbp,v) ((sbp)->s_v1.s_fs_state = cpu_to_le16(v))
65 #define sb_hash_function_code(sbp) \
66  (le32_to_cpu((sbp)->s_v1.s_hash_function_code))
67 #define set_sb_hash_function_code(sbp,v) \
68  ((sbp)->s_v1.s_hash_function_code = cpu_to_le32(v))
69 #define sb_tree_height(sbp) (le16_to_cpu((sbp)->s_v1.s_tree_height))
70 #define set_sb_tree_height(sbp,v) ((sbp)->s_v1.s_tree_height = cpu_to_le16(v))
71 #define sb_bmap_nr(sbp) (le16_to_cpu((sbp)->s_v1.s_bmap_nr))
72 #define set_sb_bmap_nr(sbp,v) ((sbp)->s_v1.s_bmap_nr = cpu_to_le16(v))
73 #define sb_version(sbp) (le16_to_cpu((sbp)->s_v1.s_version))
74 #define set_sb_version(sbp,v) ((sbp)->s_v1.s_version = cpu_to_le16(v))
75 
76 #define sb_reserved_for_journal(sbp) \
77  (le16_to_cpu((sbp)->s_v1.s_reserved_for_journal))
78 #define set_sb_reserved_for_journal(sbp,v) \
79  ((sbp)->s_v1.s_reserved_for_journal = cpu_to_le16(v))
80 
81 /* LOGGING -- */
82 
83 /* These all interelate for performance.
84 **
85 ** If the journal block count is smaller than n transactions, you lose speed.
86 ** I don't know what n is yet, I'm guessing 8-16.
87 **
88 ** typical transaction size depends on the application, how often fsync is
89 ** called, and how many metadata blocks you dirty in a 30 second period.
90 ** The more small files (<16k) you use, the larger your transactions will
91 ** be.
92 **
93 ** If your journal fills faster than dirty buffers get flushed to disk, it must flush them before allowing the journal
94 ** to wrap, which slows things down. If you need high speed meta data updates, the journal should be big enough
95 ** to prevent wrapping before dirty meta blocks get to disk.
96 **
97 ** If the batch max is smaller than the transaction max, you'll waste space at the end of the journal
98 ** because journal_end sets the next transaction to start at 0 if the next transaction has any chance of wrapping.
99 **
100 ** The large the batch max age, the better the speed, and the more meta data changes you'll lose after a crash.
101 **
102 */
103 
104 /* don't mess with these for a while */
105  /* we have a node size define somewhere in reiserfs_fs.h. -Hans */
106 #define JOURNAL_BLOCK_SIZE 4096 /* BUG gotta get rid of this */
107 #define JOURNAL_MAX_CNODE 1500 /* max cnodes to allocate. */
108 #define JOURNAL_HASH_SIZE 8192
109 #define JOURNAL_NUM_BITMAPS 5 /* number of copies of the bitmaps to have floating. Must be >= 2 */
110 
111 /* One of these for every block in every transaction
112 ** Each one is in two hash tables. First, a hash of the current transaction, and after journal_end, a
113 ** hash of all the in memory transactions.
114 ** next and prev are used by the current transaction (journal_hash).
115 ** hnext and hprev are used by journal_list_hash. If a block is in more than one transaction, the journal_list_hash
116 ** links it in multiple times. This allows flush_journal_list to remove just the cnode belonging
117 ** to a given transaction.
118 */
120  struct buffer_head *bh ; /* real buffer head */
121  struct super_block *sb ; /* dev of real buffer head */
122  __u32 blocknr ; /* block number of real buffer head, == 0 when buffer on disk */
123  long state ;
124  struct reiserfs_journal_list *jlist ; /* journal list this cnode lives in */
125  struct reiserfs_journal_cnode *next ; /* next in transaction list */
126  struct reiserfs_journal_cnode *prev ; /* prev in transaction list */
127  struct reiserfs_journal_cnode *hprev ; /* prev in hash list */
128  struct reiserfs_journal_cnode *hnext ; /* next in hash list */
129 };
130 
132  int id ;
133  char *data ;
134  struct list_head list ;
135 } ;
136 
140 } ;
141 
142 /*
143 ** one of these for each transaction. The most important part here is the j_realblock.
144 ** this list of cnodes is used to hash all the blocks in all the commits, to mark all the
145 ** real buffer heads dirty once all the commits hit the disk,
146 ** and to make sure every real block in a transaction is on disk before allowing the log area
147 ** to be overwritten */
149  unsigned long j_start ;
150  unsigned long j_state;
151  unsigned long j_len ;
154  atomic_t j_older_commits_done ; /* all commits older than this on disk*/
156  unsigned long j_trans_id ;
159  struct buffer_head *j_commit_bh ; /* commit buffer head */
161  struct reiserfs_journal_cnode *j_freedlist ; /* list of buffers that were freed during this trans. free each of these on flush */
162  /* time ordered list of all active transactions */
164 
165  /* time ordered list of all transactions we haven't tried to flush yet */
167 
168  /* list of tail conversion targets in need of flush before commit */
170  /* list of data=ordered buffers in need of flush before commit */
173 } ;
174 
176  struct buffer_head ** j_ap_blocks ; /* journal blocks on disk */
177  struct reiserfs_journal_cnode *j_last ; /* newest journal block */
178  struct reiserfs_journal_cnode *j_first ; /* oldest journal block. start here for traverse */
179 
180  struct file *j_dev_file;
182  int j_1st_reserved_block; /* first block on s_dev of reserved area journal */
183 
184  long j_state ;
185  unsigned long j_trans_id ;
186  unsigned long j_mount_id ;
187  unsigned long j_start ; /* start of current waiting commit (index into j_ap_blocks) */
188  unsigned long j_len ; /* lenght of current waiting commit */
189  unsigned long j_len_alloc ; /* number of buffers requested by journal_begin() */
190  atomic_t j_wcount ; /* count of writers for current commit */
191  unsigned long j_bcount ; /* batch count. allows turning X transactions into 1 */
192  unsigned long j_first_unflushed_offset ; /* first unflushed transactions offset */
193  unsigned long j_last_flush_trans_id ; /* last fully flushed journal timestamp */
195 
196  time_t j_trans_start_time ; /* time this transaction started */
199  wait_queue_head_t j_join_wait ; /* wait for current transaction to finish before starting new one */
200  atomic_t j_jlock ; /* lock for j_join_wait */
201  int j_list_bitmap_index ; /* number of next list bitmap to use */
202  int j_must_wait ; /* no more journal begins allowed. MUST sleep on j_join_wait */
203  int j_next_full_flush ; /* next journal_end will flush all journal list */
204  int j_next_async_flush ; /* next journal_end will flush all async commits */
205 
206  int j_cnode_used ; /* number of cnodes on the used list */
207  int j_cnode_free ; /* number of cnodes on the free list */
208 
209  unsigned int j_trans_max ; /* max number of blocks in a transaction. */
210  unsigned int j_max_batch ; /* max number of blocks to batch into a trans */
211  unsigned int j_max_commit_age ; /* in seconds, how old can an async commit be */
212  unsigned int j_max_trans_age ; /* in seconds, how old can a transaction be */
213  unsigned int j_default_max_commit_age ; /* the default for the max commit age */
214 
216  struct reiserfs_journal_cnode *j_cnode_free_orig ; /* orig pointer returned from vmalloc */
217 
221 
222  int j_num_lists; /* total number of active transactions */
223  int j_num_work_lists; /* number that need attention from kreiserfsd */
224 
225  /* debugging to make sure things are flushed in order */
227 
228  /* debugging to make sure things are committed in order */
230 
233  spinlock_t j_dirty_buffers_lock ; /* protects j_dirty_buffers */
234 
235  /* list of all active transactions */
237  /* lists that haven't been touched by writeback attempts */
239 
240  struct reiserfs_list_bitmap j_list_bitmap[JOURNAL_NUM_BITMAPS] ; /* array of bitmaps to record the deleted blocks */
241  struct reiserfs_journal_cnode *j_hash_table[JOURNAL_HASH_SIZE] ; /* hash table for real buffer heads in current trans */
242  struct reiserfs_journal_cnode *j_list_hash_table[JOURNAL_HASH_SIZE] ; /* hash table for all the real buffer heads in all
243  the transactions */
244  struct list_head j_prealloc_list; /* list of inodes which have preallocated blocks */
246  unsigned long j_max_trans_size ;
247  unsigned long j_max_batch_size ;
248 
249  int j_errno;
250 
251  /* when flushing ordered buffers, throttle new ordered writers */
252  struct work_struct j_work;
254 };
255 
257  J_WRITERS_BLOCKED = 1, /* set when new writers not allowed */
258  J_WRITERS_QUEUED, /* set when log is full due to too many writers */
259  J_ABORTED, /* set when log is aborted */
260 };
261 
262 
263 #define JOURNAL_DESC_MAGIC "ReIsErLB" /* ick. magic string to find desc blocks in the journal */
264 
265 typedef __u32 (*hashf_t) (const signed char *, int);
266 
268 {
269  // FIXME: Won't work with block sizes > 8K
272  struct buffer_head *bh; /* the actual bitmap */
273 };
274 
275 struct proc_dir_entry;
276 
277 #if defined( CONFIG_PROC_FS ) && defined( CONFIG_REISERFS_PROC_INFO )
278 typedef unsigned long int stat_cnt_t;
279 typedef struct reiserfs_proc_info_data
280 {
282  int exiting;
283  int max_hash_collisions;
284 
285  stat_cnt_t breads;
286  stat_cnt_t bread_miss;
287  stat_cnt_t search_by_key;
288  stat_cnt_t search_by_key_fs_changed;
289  stat_cnt_t search_by_key_restarted;
290 
291  stat_cnt_t insert_item_restarted;
292  stat_cnt_t paste_into_item_restarted;
293  stat_cnt_t cut_from_item_restarted;
294  stat_cnt_t delete_solid_item_restarted;
295  stat_cnt_t delete_item_restarted;
296 
297  stat_cnt_t leaked_oid;
298  stat_cnt_t leaves_removable;
299 
300  /* balances per level. Use explicit 5 as MAX_HEIGHT is not visible yet. */
301  stat_cnt_t balance_at[ 5 ]; /* XXX */
302  /* sbk == search_by_key */
303  stat_cnt_t sbk_read_at[ 5 ]; /* XXX */
304  stat_cnt_t sbk_fs_changed[ 5 ];
305  stat_cnt_t sbk_restarted[ 5 ];
306  stat_cnt_t items_at[ 5 ]; /* XXX */
307  stat_cnt_t free_at[ 5 ]; /* XXX */
308  stat_cnt_t can_node_be_removed[ 5 ]; /* XXX */
309  long int lnum[ 5 ]; /* XXX */
310  long int rnum[ 5 ]; /* XXX */
311  long int lbytes[ 5 ]; /* XXX */
312  long int rbytes[ 5 ]; /* XXX */
313  stat_cnt_t get_neighbors[ 5 ];
314  stat_cnt_t get_neighbors_restart[ 5 ];
315  stat_cnt_t need_l_neighbor[ 5 ];
316  stat_cnt_t need_r_neighbor[ 5 ];
317 
318  stat_cnt_t free_block;
319  struct __scan_bitmap_stats {
320  stat_cnt_t call;
321  stat_cnt_t wait;
322  stat_cnt_t bmap;
323  stat_cnt_t retry;
324  stat_cnt_t in_journal_hint;
325  stat_cnt_t in_journal_nohint;
326  stat_cnt_t stolen;
327  } scan_bitmap;
328  struct __journal_stats {
329  stat_cnt_t in_journal;
330  stat_cnt_t in_journal_bitmap;
331  stat_cnt_t in_journal_reusable;
332  stat_cnt_t lock_journal;
333  stat_cnt_t lock_journal_wait;
334  stat_cnt_t journal_being;
335  stat_cnt_t journal_relock_writers;
336  stat_cnt_t journal_relock_wcount;
337  stat_cnt_t mark_dirty;
338  stat_cnt_t mark_dirty_already;
339  stat_cnt_t mark_dirty_notjournal;
340  stat_cnt_t restore_prepared;
341  stat_cnt_t prepare;
342  stat_cnt_t prepare_retry;
343  } journal;
345 #else
348 #endif
349 
350 /* reiserfs union of in-core super block data */
352 {
353  struct buffer_head * s_sbh; /* Buffer containing the super block */
354  /* both the comment and the choice of
355  name are unclear for s_rs -Hans */
356  struct reiserfs_super_block * s_rs; /* Pointer to the super block in the buffer */
358  struct reiserfs_journal *s_journal ; /* pointer to journal information */
359  unsigned short s_mount_state; /* reiserfs state (valid, invalid) */
360 
361  /* Comment? -Hans */
363  hashf_t s_hash_function; /* pointer to function which is used
364  to sort names in directory. Set on
365  mount */
366  unsigned long s_mount_opt; /* reiserfs's mount options are set
367  here (currently - NOTAIL, NOLOG,
368  REPLAYONLY) */
369 
370  struct { /* This is a structure that describes block allocator options */
371  unsigned long bits; /* Bitfield for enable/disable kind of options */
372  unsigned long large_file_size; /* size started from which we consider file to be a large one(in blocks) */
373  int border; /* percentage of disk, border takes */
374  int preallocmin; /* Minimal file size (in blocks) starting from which we do preallocations */
375  int preallocsize; /* Number of blocks we try to prealloc when file
376  reaches preallocmin size (in blocks) or
377  prealloc_list is empty. */
378  } s_alloc_options;
379 
380  /* Comment? -Hans */
382  /* To be obsoleted soon by per buffer seals.. -Hans */
383  atomic_t s_generation_counter; // increased by one every time the
384  // tree gets re-balanced
385  unsigned long s_properties; /* File system properties. Currently holds
386  on-disk FS format */
387 
388  /* session statistics */
396  int s_bmaps;
400  /* set up when it's ok for reiserfs_read_inode2() to read from
401  disk inode with nlink==0. Currently this is only used during
402  finish_unfinished() processing at mount time */
405  struct proc_dir_entry *procdir;
406  int reserved_blocks; /* amount of blocks reserved for further allocations */
407  spinlock_t bitmap_lock; /* this lock on now only used to protect reserved_blocks variable */
408  struct dentry *priv_root; /* root of /.reiserfs_priv */
409  struct dentry *xattr_root; /* root of /.reiserfs_priv/.xa */
410  struct rw_semaphore xattr_dir_sem;
411 
412  int j_errno;
413 #ifdef CONFIG_QUOTA
414  char *s_qf_names[MAXQUOTAS];
415  int s_jquota_fmt;
416 #endif
417 };
418 
419 /* Definitions of reiserfs on-disk properties: */
420 #define REISERFS_3_5 0
421 #define REISERFS_3_6 1
422 
424 /* Mount options */
425  REISERFS_LARGETAIL, /* large tails will be created in a session */
426  REISERFS_SMALLTAIL, /* small (for files less than block size) tails will be created in a session */
427  REPLAYONLY, /* replay journal and return 0. Use by fsck */
428  REISERFS_CONVERT, /* -o conv: causes conversion of old
429  format super block to the new
430  format. If not specified - old
431  partition will be dealt with in a
432  manner of 3.5.x */
433 
434 /* -o hash={tea, rupasov, r5, detect} is meant for properly mounting
435 ** reiserfs disks from 3.5.19 or earlier. 99% of the time, this option
436 ** is not required. If the normal autodection code can't determine which
437 ** hash to use (because both hases had the same value for a file)
438 ** use this option to force a specific hash. It won't allow you to override
439 ** the existing hash on the FS, so if you have a tea hash disk, and mount
440 ** with -o hash=rupasov, the mount will fail.
441 */
442  FORCE_TEA_HASH, /* try to force tea hash on mount */
443  FORCE_RUPASOV_HASH, /* try to force rupasov hash on mount */
444  FORCE_R5_HASH, /* try to force rupasov hash on mount */
445  FORCE_HASH_DETECT, /* try to detect hash function on mount */
446 
450 
451 /* used for testing experimental features, makes benchmarking new
452  features with and without more convenient, should never be used by
453  users in any code shipped to users (ideally) */
454 
464 
465  /* Actions on error */
469 
475 };
476 
477 #define reiserfs_r5_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_R5_HASH))
478 #define reiserfs_rupasov_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_RUPASOV_HASH))
479 #define reiserfs_tea_hash(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_TEA_HASH))
480 #define reiserfs_hash_detect(s) (REISERFS_SB(s)->s_mount_opt & (1 << FORCE_HASH_DETECT))
481 #define reiserfs_no_border(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_NO_BORDER))
482 #define reiserfs_no_unhashed_relocation(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_NO_UNHASHED_RELOCATION))
483 #define reiserfs_hashed_relocation(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_HASHED_RELOCATION))
484 #define reiserfs_test4(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TEST4))
485 
486 #define have_large_tails(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_LARGETAIL))
487 #define have_small_tails(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_SMALLTAIL))
488 #define replay_only(s) (REISERFS_SB(s)->s_mount_opt & (1 << REPLAYONLY))
489 #define reiserfs_attrs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ATTRS))
490 #define old_format_only(s) (REISERFS_SB(s)->s_properties & (1 << REISERFS_3_5))
491 #define convert_reiserfs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_CONVERT))
492 #define reiserfs_data_log(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_LOG))
493 #define reiserfs_data_ordered(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_ORDERED))
494 #define reiserfs_data_writeback(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK))
495 #define reiserfs_xattrs(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS))
496 #define reiserfs_xattrs_user(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS_USER))
497 #define reiserfs_posixacl(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_POSIXACL))
498 #define reiserfs_xattrs_optional(s) (reiserfs_xattrs_user(s) || reiserfs_posixacl(s))
499 #define reiserfs_barrier_none(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_BARRIER_NONE))
500 #define reiserfs_barrier_flush(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_BARRIER_FLUSH))
501 
502 #define reiserfs_error_panic(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ERROR_PANIC))
503 #define reiserfs_error_ro(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_ERROR_RO))
504 
505 void reiserfs_file_buffer (struct buffer_head * bh, int list);
506 extern struct file_system_type reiserfs_fs_type;
507 int reiserfs_resize(struct super_block *, unsigned long) ;
508 
509 #define CARRY_ON 0
510 #define SCHEDULE_OCCURRED 1
511 
512 
513 #define SB_BUFFER_WITH_SB(s) (REISERFS_SB(s)->s_sbh)
514 #define SB_JOURNAL(s) (REISERFS_SB(s)->s_journal)
515 #define SB_JOURNAL_1st_RESERVED_BLOCK(s) (SB_JOURNAL(s)->j_1st_reserved_block)
516 #define SB_JOURNAL_LEN_FREE(s) (SB_JOURNAL(s)->j_journal_len_free)
517 #define SB_AP_BITMAP(s) (REISERFS_SB(s)->s_ap_bitmap)
518 
519 #define SB_DISK_JOURNAL_HEAD(s) (SB_JOURNAL(s)->j_header_bh->)
520 
521 /* A safe version of the "bdevname", which returns the "s_id" field of
522  * a superblock or else "Null superblock" if the super block is NULL.
523  */
524 static inline char *reiserfs_bdevname(struct super_block *s)
525 {
526  return (s == NULL) ? "Null superblock" : s -> s_id;
527 }
528 
529 #define reiserfs_is_journal_aborted(journal) (unlikely (__reiserfs_is_journal_aborted (journal)))
530 static inline int __reiserfs_is_journal_aborted (struct reiserfs_journal *journal)
531 {
532  return test_bit (J_ABORTED, &journal->j_state);
533 }
534 
535 #endif /* _LINUX_REISER_FS_SB */
struct reiserfs_journal * s_journal
struct reiserfs_journal_cnode * j_cnode_free_list
#define JOURNAL_HASH_SIZE
struct file_system_type reiserfs_fs_type
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
struct list_head j_working_list
rwlock_t lock
Definition: tcpcore.h:1163
__u32(* hashf_t)(const signed char *, int)
reiserfs_super_block_flags
reiserfs_proc_info_data_t s_proc_info_data
struct reiserfs_journal_cnode * j_freedlist
struct work_struct j_work
reiserfs_mount_options
unsigned long j_trans_id
Definition: fs.h:64
unsigned long s_properties
struct reiserfs_journal_list * journal_list
struct file * j_dev_file
unsigned long large_file_size
wait_queue_head_t j_join_wait
struct reiserfs_bitmap_node ** bitmaps
unsigned long j_first_unflushed_offset
struct list_head j_journal_list
struct buffer_head ** j_ap_blocks
unsigned int j_default_max_commit_age
struct semaphore j_lock
struct buffer_head * bh
Definition: list.h:15
struct semaphore j_commit_lock
unsigned long j_max_batch_size
unsigned long j_max_trans_size
struct list_head j_working_list
static int __reiserfs_is_journal_aborted(struct reiserfs_journal *journal)
#define JOURNAL_NUM_BITMAPS
unsigned long j_trans_id
struct list_head j_bitmap_nodes
journal_state_bits
smooth NULL
Definition: ftsmooth.c:416
spinlock_t bitmap_lock
struct reiserfs_sb_info::@751 s_alloc_options
Definition: fs.h:117
struct reiserfs_super_block * s_rs
static int test_bit(int nr, volatile const unsigned long *addr)
Definition: module.h:381
static char * reiserfs_bdevname(struct super_block *s)
struct reiserfs_journal_cnode * hprev
unsigned long j_len
unsigned long j_start
HANDLE semaphore
Definition: loader.c:2140
int search_by_key(struct super_block *, const struct cpu_key *, struct path *, int)
unsigned short __u16
Definition: compat.h:89
unsigned long bits
struct block_device * j_dev_bd
struct list_head j_tail_bh_list
struct list_head j_bh_list
struct semaphore j_flush_sem
unsigned int __u32
Definition: compat.h:90
struct reiserfs_journal_cnode * j_list_hash_table[JOURNAL_HASH_SIZE]
struct reiserfs_journal_cnode * hnext
struct reiserfs_journal_cnode * prev
struct buffer_head * j_header_bh
unsigned int j_max_batch
struct reiserfs_bitmap_info * s_ap_bitmap
struct reiserfs_journal_cnode * j_first
ULONGLONG bmap(struct inode *i, ULONGLONG b)
Definition: linux.c:934
struct reiserfs_journal_list * jlist
unsigned int j_max_trans_age
GLdouble s
Definition: gl.h:2039
Definition: _list.h:228
struct dentry * priv_root
wait_queue_head_t s_wait
struct rw_semaphore xattr_dir_sem
unsigned long j_mount_id
struct reiserfs_journal_list * j_current_jl
void(* end_io_handler)(struct buffer_head *, int)
unsigned long j_len_alloc
struct buffer_head * s_sbh
struct proc_dir_entry * procdir
unsigned long j_last_flush_trans_id
int prepare
Definition: msacm.c:1362
unsigned long j_bcount
struct reiserfs_journal_cnode * j_realblock
struct reiserfs_journal_cnode * next
struct super_block * sb
int reiserfs_resize(struct super_block *, unsigned long)
struct buffer_head * j_commit_bh
__kernel_time_t time_t
Definition: linux.h:252
struct list_head j_prealloc_list
struct list_head j_list
atomic_t s_generation_counter
unsigned int j_trans_max
struct list_head j_dirty_buffers
atomic_t j_async_throttle
struct reiserfs_list_bitmap j_list_bitmap[JOURNAL_NUM_BITMAPS]
unsigned int j_max_commit_age
struct reiserfs_journal_cnode * j_last
struct reiserfs_journal_cnode * j_cnode_free_orig
unsigned long s_mount_opt
struct reiserfs_proc_info_data reiserfs_proc_info_data_t
unsigned short s_mount_state
spinlock_t j_dirty_buffers_lock
struct dentry * xattr_root
struct reiserfs_journal_cnode * j_hash_table[JOURNAL_HASH_SIZE]
struct reiserfs_list_bitmap * j_list_bitmap
void reiserfs_file_buffer(struct buffer_head *bh, int list)
struct buffer_head * bh
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
Definition: fci.c:126