xref: /openbmc/linux/fs/reiserfs/procfs.c (revision d5cb9783536a41df9f9cba5b0a1d78047ed787f7)
1 /* -*- linux-c -*- */
2 
3 /* fs/reiserfs/procfs.c */
4 
5 /*
6  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
7  */
8 
9 /* proc info support a la one created by Sizif@Botik.RU for PGC */
10 
11 /* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
12 
13 #include <linux/config.h>
14 #include <linux/module.h>
15 #include <linux/time.h>
16 #include <linux/seq_file.h>
17 #include <asm/uaccess.h>
18 #include <linux/reiserfs_fs.h>
19 #include <linux/reiserfs_fs_sb.h>
20 #include <linux/smp_lock.h>
21 #include <linux/init.h>
22 #include <linux/proc_fs.h>
23 
24 #if defined( REISERFS_PROC_INFO )
25 
26 /*
27  * LOCKING:
28  *
29  * We rely on new Alexander Viro's super-block locking.
30  *
31  */
32 
33 static int show_version(struct seq_file *m, struct super_block *sb)
34 {
35 	char *format;
36 
37 	if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
38 		format = "3.6";
39 	} else if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5)) {
40 		format = "3.5";
41 	} else {
42 		format = "unknown";
43 	}
44 
45 	seq_printf(m, "%s format\twith checks %s\n", format,
46 #if defined( CONFIG_REISERFS_CHECK )
47 		   "on"
48 #else
49 		   "off"
50 #endif
51 	    );
52 	return 0;
53 }
54 
55 int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
56 				    int count, int *eof, void *data)
57 {
58 	*start = buffer;
59 	*eof = 1;
60 	return 0;
61 }
62 
63 #define SF( x ) ( r -> x )
64 #define SFP( x ) SF( s_proc_info_data.x )
65 #define SFPL( x ) SFP( x[ level ] )
66 #define SFPF( x ) SFP( scan_bitmap.x )
67 #define SFPJ( x ) SFP( journal.x )
68 
69 #define D2C( x ) le16_to_cpu( x )
70 #define D4C( x ) le32_to_cpu( x )
71 #define DF( x ) D2C( rs -> s_v1.x )
72 #define DFL( x ) D4C( rs -> s_v1.x )
73 
74 #define objectid_map( s, rs ) (old_format_only (s) ?				\
75                          (__le32 *)((struct reiserfs_super_block_v1 *)rs + 1) :	\
76 			 (__le32 *)(rs + 1))
77 #define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
78 
79 #define DJF( x ) le32_to_cpu( rs -> x )
80 #define DJV( x ) le32_to_cpu( s_v1 -> x )
81 #define DJP( x ) le32_to_cpu( jp -> x )
82 #define JF( x ) ( r -> s_journal -> x )
83 
84 static int show_super(struct seq_file *m, struct super_block *sb)
85 {
86 	struct reiserfs_sb_info *r = REISERFS_SB(sb);
87 
88 	seq_printf(m, "state: \t%s\n"
89 		   "mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
90 		   "gen. counter: \t%i\n"
91 		   "s_kmallocs: \t%i\n"
92 		   "s_disk_reads: \t%i\n"
93 		   "s_disk_writes: \t%i\n"
94 		   "s_fix_nodes: \t%i\n"
95 		   "s_do_balance: \t%i\n"
96 		   "s_unneeded_left_neighbor: \t%i\n"
97 		   "s_good_search_by_key_reada: \t%i\n"
98 		   "s_bmaps: \t%i\n"
99 		   "s_bmaps_without_search: \t%i\n"
100 		   "s_direct2indirect: \t%i\n"
101 		   "s_indirect2direct: \t%i\n"
102 		   "\n"
103 		   "max_hash_collisions: \t%i\n"
104 		   "breads: \t%lu\n"
105 		   "bread_misses: \t%lu\n"
106 		   "search_by_key: \t%lu\n"
107 		   "search_by_key_fs_changed: \t%lu\n"
108 		   "search_by_key_restarted: \t%lu\n"
109 		   "insert_item_restarted: \t%lu\n"
110 		   "paste_into_item_restarted: \t%lu\n"
111 		   "cut_from_item_restarted: \t%lu\n"
112 		   "delete_solid_item_restarted: \t%lu\n"
113 		   "delete_item_restarted: \t%lu\n"
114 		   "leaked_oid: \t%lu\n"
115 		   "leaves_removable: \t%lu\n",
116 		   SF(s_mount_state) == REISERFS_VALID_FS ?
117 		   "REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
118 		   reiserfs_r5_hash(sb) ? "FORCE_R5 " : "",
119 		   reiserfs_rupasov_hash(sb) ? "FORCE_RUPASOV " : "",
120 		   reiserfs_tea_hash(sb) ? "FORCE_TEA " : "",
121 		   reiserfs_hash_detect(sb) ? "DETECT_HASH " : "",
122 		   reiserfs_no_border(sb) ? "NO_BORDER " : "BORDER ",
123 		   reiserfs_no_unhashed_relocation(sb) ?
124 		   "NO_UNHASHED_RELOCATION " : "",
125 		   reiserfs_hashed_relocation(sb) ? "UNHASHED_RELOCATION " : "",
126 		   reiserfs_test4(sb) ? "TEST4 " : "",
127 		   have_large_tails(sb) ? "TAILS " : have_small_tails(sb) ?
128 		   "SMALL_TAILS " : "NO_TAILS ",
129 		   replay_only(sb) ? "REPLAY_ONLY " : "",
130 		   convert_reiserfs(sb) ? "CONV " : "",
131 		   atomic_read(&r->s_generation_counter), SF(s_kmallocs),
132 		   SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
133 		   SF(s_do_balance), SF(s_unneeded_left_neighbor),
134 		   SF(s_good_search_by_key_reada), SF(s_bmaps),
135 		   SF(s_bmaps_without_search), SF(s_direct2indirect),
136 		   SF(s_indirect2direct), SFP(max_hash_collisions), SFP(breads),
137 		   SFP(bread_miss), SFP(search_by_key),
138 		   SFP(search_by_key_fs_changed), SFP(search_by_key_restarted),
139 		   SFP(insert_item_restarted), SFP(paste_into_item_restarted),
140 		   SFP(cut_from_item_restarted),
141 		   SFP(delete_solid_item_restarted), SFP(delete_item_restarted),
142 		   SFP(leaked_oid), SFP(leaves_removable));
143 
144 	return 0;
145 }
146 
147 static int show_per_level(struct seq_file *m, struct super_block *sb)
148 {
149 	struct reiserfs_sb_info *r = REISERFS_SB(sb);
150 	int level;
151 
152 	seq_printf(m, "level\t"
153 		   "     balances"
154 		   " [sbk:  reads"
155 		   "   fs_changed"
156 		   "   restarted]"
157 		   "   free space"
158 		   "        items"
159 		   "   can_remove"
160 		   "         lnum"
161 		   "         rnum"
162 		   "       lbytes"
163 		   "       rbytes"
164 		   "     get_neig"
165 		   " get_neig_res" "  need_l_neig" "  need_r_neig" "\n");
166 
167 	for (level = 0; level < MAX_HEIGHT; ++level) {
168 		seq_printf(m, "%i\t"
169 			   " %12lu"
170 			   " %12lu"
171 			   " %12lu"
172 			   " %12lu"
173 			   " %12lu"
174 			   " %12lu"
175 			   " %12lu"
176 			   " %12li"
177 			   " %12li"
178 			   " %12li"
179 			   " %12li"
180 			   " %12lu"
181 			   " %12lu"
182 			   " %12lu"
183 			   " %12lu"
184 			   "\n",
185 			   level,
186 			   SFPL(balance_at),
187 			   SFPL(sbk_read_at),
188 			   SFPL(sbk_fs_changed),
189 			   SFPL(sbk_restarted),
190 			   SFPL(free_at),
191 			   SFPL(items_at),
192 			   SFPL(can_node_be_removed),
193 			   SFPL(lnum),
194 			   SFPL(rnum),
195 			   SFPL(lbytes),
196 			   SFPL(rbytes),
197 			   SFPL(get_neighbors),
198 			   SFPL(get_neighbors_restart),
199 			   SFPL(need_l_neighbor), SFPL(need_r_neighbor)
200 		    );
201 	}
202 	return 0;
203 }
204 
205 static int show_bitmap(struct seq_file *m, struct super_block *sb)
206 {
207 	struct reiserfs_sb_info *r = REISERFS_SB(sb);
208 
209 	seq_printf(m, "free_block: %lu\n"
210 		   "  scan_bitmap:"
211 		   "          wait"
212 		   "          bmap"
213 		   "         retry"
214 		   "        stolen"
215 		   "  journal_hint"
216 		   "journal_nohint"
217 		   "\n"
218 		   " %14lu"
219 		   " %14lu"
220 		   " %14lu"
221 		   " %14lu"
222 		   " %14lu"
223 		   " %14lu"
224 		   " %14lu"
225 		   "\n",
226 		   SFP(free_block),
227 		   SFPF(call),
228 		   SFPF(wait),
229 		   SFPF(bmap),
230 		   SFPF(retry),
231 		   SFPF(stolen),
232 		   SFPF(in_journal_hint), SFPF(in_journal_nohint));
233 
234 	return 0;
235 }
236 
237 static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
238 {
239 	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
240 	struct reiserfs_super_block *rs = sb_info->s_rs;
241 	int hash_code = DFL(s_hash_function_code);
242 	__u32 flags = DJF(s_flags);
243 
244 	seq_printf(m, "block_count: \t%i\n"
245 		   "free_blocks: \t%i\n"
246 		   "root_block: \t%i\n"
247 		   "blocksize: \t%i\n"
248 		   "oid_maxsize: \t%i\n"
249 		   "oid_cursize: \t%i\n"
250 		   "umount_state: \t%i\n"
251 		   "magic: \t%10.10s\n"
252 		   "fs_state: \t%i\n"
253 		   "hash: \t%s\n"
254 		   "tree_height: \t%i\n"
255 		   "bmap_nr: \t%i\n"
256 		   "version: \t%i\n"
257 		   "flags: \t%x[%s]\n"
258 		   "reserved_for_journal: \t%i\n",
259 		   DFL(s_block_count),
260 		   DFL(s_free_blocks),
261 		   DFL(s_root_block),
262 		   DF(s_blocksize),
263 		   DF(s_oid_maxsize),
264 		   DF(s_oid_cursize),
265 		   DF(s_umount_state),
266 		   rs->s_v1.s_magic,
267 		   DF(s_fs_state),
268 		   hash_code == TEA_HASH ? "tea" :
269 		   (hash_code == YURA_HASH) ? "rupasov" :
270 		   (hash_code == R5_HASH) ? "r5" :
271 		   (hash_code == UNSET_HASH) ? "unset" : "unknown",
272 		   DF(s_tree_height),
273 		   DF(s_bmap_nr),
274 		   DF(s_version), flags, (flags & reiserfs_attrs_cleared)
275 		   ? "attrs_cleared" : "", DF(s_reserved_for_journal));
276 
277 	return 0;
278 }
279 
280 static int show_oidmap(struct seq_file *m, struct super_block *sb)
281 {
282 	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
283 	struct reiserfs_super_block *rs = sb_info->s_rs;
284 	unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
285 	unsigned long total_used = 0;
286 	int i;
287 
288 	for (i = 0; i < mapsize; ++i) {
289 		__u32 right;
290 
291 		right = (i == mapsize - 1) ? MAX_KEY_OBJECTID : MAP(i + 1);
292 		seq_printf(m, "%s: [ %x .. %x )\n",
293 			   (i & 1) ? "free" : "used", MAP(i), right);
294 		if (!(i & 1)) {
295 			total_used += right - MAP(i);
296 		}
297 	}
298 #if defined( REISERFS_USE_OIDMAPF )
299 	if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
300 		loff_t size = sb_info->oidmap.mapf->f_dentry->d_inode->i_size;
301 		total_used += size / sizeof(reiserfs_oidinterval_d_t);
302 	}
303 #endif
304 	seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n",
305 		   mapsize,
306 		   mapsize, le16_to_cpu(rs->s_v1.s_oid_maxsize), total_used);
307 	return 0;
308 }
309 
310 static int show_journal(struct seq_file *m, struct super_block *sb)
311 {
312 	struct reiserfs_sb_info *r = REISERFS_SB(sb);
313 	struct reiserfs_super_block *rs = r->s_rs;
314 	struct journal_params *jp = &rs->s_v1.s_journal;
315 	char b[BDEVNAME_SIZE];
316 
317 	seq_printf(m,		/* on-disk fields */
318 		   "jp_journal_1st_block: \t%i\n"
319 		   "jp_journal_dev: \t%s[%x]\n"
320 		   "jp_journal_size: \t%i\n"
321 		   "jp_journal_trans_max: \t%i\n"
322 		   "jp_journal_magic: \t%i\n"
323 		   "jp_journal_max_batch: \t%i\n"
324 		   "jp_journal_max_commit_age: \t%i\n"
325 		   "jp_journal_max_trans_age: \t%i\n"
326 		   /* incore fields */
327 		   "j_1st_reserved_block: \t%i\n"
328 		   "j_state: \t%li\n"
329 		   "j_trans_id: \t%lu\n"
330 		   "j_mount_id: \t%lu\n"
331 		   "j_start: \t%lu\n"
332 		   "j_len: \t%lu\n"
333 		   "j_len_alloc: \t%lu\n"
334 		   "j_wcount: \t%i\n"
335 		   "j_bcount: \t%lu\n"
336 		   "j_first_unflushed_offset: \t%lu\n"
337 		   "j_last_flush_trans_id: \t%lu\n"
338 		   "j_trans_start_time: \t%li\n"
339 		   "j_list_bitmap_index: \t%i\n"
340 		   "j_must_wait: \t%i\n"
341 		   "j_next_full_flush: \t%i\n"
342 		   "j_next_async_flush: \t%i\n"
343 		   "j_cnode_used: \t%i\n" "j_cnode_free: \t%i\n" "\n"
344 		   /* reiserfs_proc_info_data_t.journal fields */
345 		   "in_journal: \t%12lu\n"
346 		   "in_journal_bitmap: \t%12lu\n"
347 		   "in_journal_reusable: \t%12lu\n"
348 		   "lock_journal: \t%12lu\n"
349 		   "lock_journal_wait: \t%12lu\n"
350 		   "journal_begin: \t%12lu\n"
351 		   "journal_relock_writers: \t%12lu\n"
352 		   "journal_relock_wcount: \t%12lu\n"
353 		   "mark_dirty: \t%12lu\n"
354 		   "mark_dirty_already: \t%12lu\n"
355 		   "mark_dirty_notjournal: \t%12lu\n"
356 		   "restore_prepared: \t%12lu\n"
357 		   "prepare: \t%12lu\n"
358 		   "prepare_retry: \t%12lu\n",
359 		   DJP(jp_journal_1st_block),
360 		   bdevname(SB_JOURNAL(sb)->j_dev_bd, b),
361 		   DJP(jp_journal_dev),
362 		   DJP(jp_journal_size),
363 		   DJP(jp_journal_trans_max),
364 		   DJP(jp_journal_magic),
365 		   DJP(jp_journal_max_batch),
366 		   SB_JOURNAL(sb)->j_max_commit_age,
367 		   DJP(jp_journal_max_trans_age),
368 		   JF(j_1st_reserved_block),
369 		   JF(j_state),
370 		   JF(j_trans_id),
371 		   JF(j_mount_id),
372 		   JF(j_start),
373 		   JF(j_len),
374 		   JF(j_len_alloc),
375 		   atomic_read(&r->s_journal->j_wcount),
376 		   JF(j_bcount),
377 		   JF(j_first_unflushed_offset),
378 		   JF(j_last_flush_trans_id),
379 		   JF(j_trans_start_time),
380 		   JF(j_list_bitmap_index),
381 		   JF(j_must_wait),
382 		   JF(j_next_full_flush),
383 		   JF(j_next_async_flush),
384 		   JF(j_cnode_used),
385 		   JF(j_cnode_free),
386 		   SFPJ(in_journal),
387 		   SFPJ(in_journal_bitmap),
388 		   SFPJ(in_journal_reusable),
389 		   SFPJ(lock_journal),
390 		   SFPJ(lock_journal_wait),
391 		   SFPJ(journal_being),
392 		   SFPJ(journal_relock_writers),
393 		   SFPJ(journal_relock_wcount),
394 		   SFPJ(mark_dirty),
395 		   SFPJ(mark_dirty_already),
396 		   SFPJ(mark_dirty_notjournal),
397 		   SFPJ(restore_prepared), SFPJ(prepare), SFPJ(prepare_retry)
398 	    );
399 	return 0;
400 }
401 
402 /* iterator */
403 static int test_sb(struct super_block *sb, void *data)
404 {
405 	return data == sb;
406 }
407 
408 static int set_sb(struct super_block *sb, void *data)
409 {
410 	return -ENOENT;
411 }
412 
413 static void *r_start(struct seq_file *m, loff_t * pos)
414 {
415 	struct proc_dir_entry *de = m->private;
416 	struct super_block *s = de->parent->data;
417 	loff_t l = *pos;
418 
419 	if (l)
420 		return NULL;
421 
422 	if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, s)))
423 		return NULL;
424 
425 	up_write(&s->s_umount);
426 
427 	if (de->deleted) {
428 		deactivate_super(s);
429 		return NULL;
430 	}
431 
432 	return s;
433 }
434 
435 static void *r_next(struct seq_file *m, void *v, loff_t * pos)
436 {
437 	++*pos;
438 	if (v)
439 		deactivate_super(v);
440 	return NULL;
441 }
442 
443 static void r_stop(struct seq_file *m, void *v)
444 {
445 	if (v)
446 		deactivate_super(v);
447 }
448 
449 static int r_show(struct seq_file *m, void *v)
450 {
451 	struct proc_dir_entry *de = m->private;
452 	int (*show) (struct seq_file *, struct super_block *) = de->data;
453 	return show(m, v);
454 }
455 
456 static struct seq_operations r_ops = {
457 	.start = r_start,
458 	.next = r_next,
459 	.stop = r_stop,
460 	.show = r_show,
461 };
462 
463 static int r_open(struct inode *inode, struct file *file)
464 {
465 	int ret = seq_open(file, &r_ops);
466 
467 	if (!ret) {
468 		struct seq_file *m = file->private_data;
469 		m->private = PDE(inode);
470 	}
471 	return ret;
472 }
473 
474 static struct file_operations r_file_operations = {
475 	.open = r_open,
476 	.read = seq_read,
477 	.llseek = seq_lseek,
478 	.release = seq_release,
479 };
480 
481 static struct proc_dir_entry *proc_info_root = NULL;
482 static const char proc_info_root_name[] = "fs/reiserfs";
483 
484 static void add_file(struct super_block *sb, char *name,
485 		     int (*func) (struct seq_file *, struct super_block *))
486 {
487 	struct proc_dir_entry *de;
488 	de = create_proc_entry(name, 0, REISERFS_SB(sb)->procdir);
489 	if (de) {
490 		de->data = func;
491 		de->proc_fops = &r_file_operations;
492 	}
493 }
494 
495 int reiserfs_proc_info_init(struct super_block *sb)
496 {
497 	spin_lock_init(&__PINFO(sb).lock);
498 	REISERFS_SB(sb)->procdir =
499 	    proc_mkdir(reiserfs_bdevname(sb), proc_info_root);
500 	if (REISERFS_SB(sb)->procdir) {
501 		REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
502 		REISERFS_SB(sb)->procdir->data = sb;
503 		add_file(sb, "version", show_version);
504 		add_file(sb, "super", show_super);
505 		add_file(sb, "per-level", show_per_level);
506 		add_file(sb, "bitmap", show_bitmap);
507 		add_file(sb, "on-disk-super", show_on_disk_super);
508 		add_file(sb, "oidmap", show_oidmap);
509 		add_file(sb, "journal", show_journal);
510 		return 0;
511 	}
512 	reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
513 			 proc_info_root_name, reiserfs_bdevname(sb));
514 	return 1;
515 }
516 
517 int reiserfs_proc_info_done(struct super_block *sb)
518 {
519 	struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
520 	if (de) {
521 		remove_proc_entry("journal", de);
522 		remove_proc_entry("oidmap", de);
523 		remove_proc_entry("on-disk-super", de);
524 		remove_proc_entry("bitmap", de);
525 		remove_proc_entry("per-level", de);
526 		remove_proc_entry("super", de);
527 		remove_proc_entry("version", de);
528 	}
529 	spin_lock(&__PINFO(sb).lock);
530 	__PINFO(sb).exiting = 1;
531 	spin_unlock(&__PINFO(sb).lock);
532 	if (proc_info_root) {
533 		remove_proc_entry(reiserfs_bdevname(sb), proc_info_root);
534 		REISERFS_SB(sb)->procdir = NULL;
535 	}
536 	return 0;
537 }
538 
539 struct proc_dir_entry *reiserfs_proc_register_global(char *name,
540 						     read_proc_t * func)
541 {
542 	return (proc_info_root) ? create_proc_read_entry(name, 0,
543 							 proc_info_root,
544 							 func, NULL) : NULL;
545 }
546 
547 void reiserfs_proc_unregister_global(const char *name)
548 {
549 	remove_proc_entry(name, proc_info_root);
550 }
551 
552 int reiserfs_proc_info_global_init(void)
553 {
554 	if (proc_info_root == NULL) {
555 		proc_info_root = proc_mkdir(proc_info_root_name, NULL);
556 		if (proc_info_root) {
557 			proc_info_root->owner = THIS_MODULE;
558 		} else {
559 			reiserfs_warning(NULL,
560 					 "reiserfs: cannot create /proc/%s",
561 					 proc_info_root_name);
562 			return 1;
563 		}
564 	}
565 	return 0;
566 }
567 
568 int reiserfs_proc_info_global_done(void)
569 {
570 	if (proc_info_root != NULL) {
571 		proc_info_root = NULL;
572 		remove_proc_entry(proc_info_root_name, NULL);
573 	}
574 	return 0;
575 }
576 
577 /* REISERFS_PROC_INFO */
578 #else
579 
580 int reiserfs_proc_info_init(struct super_block *sb)
581 {
582 	return 0;
583 }
584 int reiserfs_proc_info_done(struct super_block *sb)
585 {
586 	return 0;
587 }
588 
589 struct proc_dir_entry *reiserfs_proc_register_global(char *name,
590 						     read_proc_t * func)
591 {
592 	return NULL;
593 }
594 
595 void reiserfs_proc_unregister_global(const char *name)
596 {;
597 }
598 
599 int reiserfs_proc_info_global_init(void)
600 {
601 	return 0;
602 }
603 int reiserfs_proc_info_global_done(void)
604 {
605 	return 0;
606 }
607 
608 int reiserfs_global_version_in_proc(char *buffer, char **start,
609 				    off_t offset,
610 				    int count, int *eof, void *data)
611 {
612 	return 0;
613 }
614 
615 /* REISERFS_PROC_INFO */
616 #endif
617 
618 /*
619  * $Log: procfs.c,v $
620  * Revision 1.1.8.2  2001/07/15 17:08:42  god
621  *  . use get_super() in procfs.c
622  *  . remove remove_save_link() from reiserfs_do_truncate()
623  *
624  * I accept terms and conditions stated in the Legal Agreement
625  * (available at http://www.namesys.com/legalese.html)
626  *
627  * Revision 1.1.8.1  2001/07/11 16:48:50  god
628  * proc info support
629  *
630  * I accept terms and conditions stated in the Legal Agreement
631  * (available at http://www.namesys.com/legalese.html)
632  *
633  */
634 
635 /*
636  * Make Linus happy.
637  * Local variables:
638  * c-indentation-style: "K&R"
639  * mode-name: "LC"
640  * c-basic-offset: 8
641  * tab-width: 8
642  * End:
643  */
644