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ext4: use transaction reservation for extent conversion in ext4_end_io
[linux-2.6.git] / fs / cifs / cifs_debug.c
blobd59748346020f9302be6a5cf66730b9190f0af9d
1 /*
2 * fs/cifs_debug.c
3 *
4 * Copyright (C) International Business Machines Corp., 2000,2005
5 *
6 * Modified by Steve French (sfrench@us.ibm.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
16 * the GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22 #include <linux/fs.h>
23 #include <linux/string.h>
24 #include <linux/ctype.h>
25 #include <linux/module.h>
26 #include <linux/proc_fs.h>
27 #include <asm/uaccess.h>
28 #include "cifspdu.h"
29 #include "cifsglob.h"
30 #include "cifsproto.h"
31 #include "cifs_debug.h"
32 #include "cifsfs.h"
33
34 void
35 cifs_dump_mem(char *label, void *data, int length)
36 {
37 int i, j;
38 int *intptr = data;
39 char *charptr = data;
40 char buf[10], line[80];
41
42 printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n",
43 label, length, data);
44 for (i = 0; i < length; i += 16) {
45 line[0] = 0;
46 for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
47 sprintf(buf, " %08x", intptr[i / 4 + j]);
48 strcat(line, buf);
49 }
50 buf[0] = ' ';
51 buf[2] = 0;
52 for (j = 0; (j < 16) && (i + j < length); j++) {
53 buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
54 strcat(line, buf);
55 }
56 printk(KERN_DEBUG "%s\n", line);
57 }
58 }
59
60 #ifdef CONFIG_CIFS_DEBUG
61 void cifs_vfs_err(const char *fmt, ...)
62 {
63 struct va_format vaf;
64 va_list args;
65
66 va_start(args, fmt);
67
68 vaf.fmt = fmt;
69 vaf.va = &args;
70
71 printk(KERN_ERR "CIFS VFS: %pV", &vaf);
72
73 va_end(args);
74 }
75 #endif
76
77 void cifs_dump_detail(void *buf)
78 {
79 #ifdef CONFIG_CIFS_DEBUG2
80 struct smb_hdr *smb = (struct smb_hdr *)buf;
81
82 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d\n",
83 smb->Command, smb->Status.CifsError,
84 smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
85 cifs_dbg(VFS, "smb buf %p len %u\n", smb, smbCalcSize(smb));
86 #endif /* CONFIG_CIFS_DEBUG2 */
87 }
88
89 void cifs_dump_mids(struct TCP_Server_Info *server)
90 {
91 #ifdef CONFIG_CIFS_DEBUG2
92 struct list_head *tmp;
93 struct mid_q_entry *mid_entry;
94
95 if (server == NULL)
96 return;
97
98 cifs_dbg(VFS, "Dump pending requests:\n");
99 spin_lock(&GlobalMid_Lock);
100 list_for_each(tmp, &server->pending_mid_q) {
101 mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
102 cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n",
103 mid_entry->mid_state,
104 le16_to_cpu(mid_entry->command),
105 mid_entry->pid,
106 mid_entry->callback_data,
107 mid_entry->mid);
108 #ifdef CONFIG_CIFS_STATS2
109 cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n",
110 mid_entry->large_buf,
111 mid_entry->resp_buf,
112 mid_entry->when_received,
113 jiffies);
114 #endif /* STATS2 */
115 cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n",
116 mid_entry->multiRsp, mid_entry->multiEnd);
117 if (mid_entry->resp_buf) {
118 cifs_dump_detail(mid_entry->resp_buf);
119 cifs_dump_mem("existing buf: ",
120 mid_entry->resp_buf, 62);
121 }
122 }
123 spin_unlock(&GlobalMid_Lock);
124 #endif /* CONFIG_CIFS_DEBUG2 */
125 }
126
127 #ifdef CONFIG_PROC_FS
128 static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
129 {
130 struct list_head *tmp1, *tmp2, *tmp3;
131 struct mid_q_entry *mid_entry;
132 struct TCP_Server_Info *server;
133 struct cifs_ses *ses;
134 struct cifs_tcon *tcon;
135 int i, j;
136 __u32 dev_type;
137
138 seq_puts(m,
139 "Display Internal CIFS Data Structures for Debugging\n"
140 "---------------------------------------------------\n");
141 seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
142 seq_printf(m, "Features:");
143 #ifdef CONFIG_CIFS_DFS_UPCALL
144 seq_printf(m, " dfs");
145 #endif
146 #ifdef CONFIG_CIFS_FSCACHE
147 seq_printf(m, " fscache");
148 #endif
149 #ifdef CONFIG_CIFS_WEAK_PW_HASH
150 seq_printf(m, " lanman");
151 #endif
152 #ifdef CONFIG_CIFS_POSIX
153 seq_printf(m, " posix");
154 #endif
155 #ifdef CONFIG_CIFS_UPCALL
156 seq_printf(m, " spnego");
157 #endif
158 #ifdef CONFIG_CIFS_XATTR
159 seq_printf(m, " xattr");
160 #endif
161 #ifdef CONFIG_CIFS_ACL
162 seq_printf(m, " acl");
163 #endif
164 seq_putc(m, '\n');
165 seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
166 seq_printf(m, "Servers:");
167
168 i = 0;
169 spin_lock(&cifs_tcp_ses_lock);
170 list_for_each(tmp1, &cifs_tcp_ses_list) {
171 server = list_entry(tmp1, struct TCP_Server_Info,
172 tcp_ses_list);
173 i++;
174 list_for_each(tmp2, &server->smb_ses_list) {
175 ses = list_entry(tmp2, struct cifs_ses,
176 smb_ses_list);
177 if ((ses->serverDomain == NULL) ||
178 (ses->serverOS == NULL) ||
179 (ses->serverNOS == NULL)) {
180 seq_printf(m, "\n%d) entry for %s not fully "
181 "displayed\n\t", i, ses->serverName);
182 } else {
183 seq_printf(m,
184 "\n%d) Name: %s Domain: %s Uses: %d OS:"
185 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
186 " session status: %d\t",
187 i, ses->serverName, ses->serverDomain,
188 ses->ses_count, ses->serverOS, ses->serverNOS,
189 ses->capabilities, ses->status);
190 }
191 seq_printf(m, "TCP status: %d\n\tLocal Users To "
192 "Server: %d SecMode: 0x%x Req On Wire: %d",
193 server->tcpStatus, server->srv_count,
194 server->sec_mode, in_flight(server));
195
196 #ifdef CONFIG_CIFS_STATS2
197 seq_printf(m, " In Send: %d In MaxReq Wait: %d",
198 atomic_read(&server->in_send),
199 atomic_read(&server->num_waiters));
200 #endif
201
202 seq_puts(m, "\n\tShares:");
203 j = 0;
204 list_for_each(tmp3, &ses->tcon_list) {
205 tcon = list_entry(tmp3, struct cifs_tcon,
206 tcon_list);
207 ++j;
208 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
209 seq_printf(m, "\n\t%d) %s Mounts: %d ", j,
210 tcon->treeName, tcon->tc_count);
211 if (tcon->nativeFileSystem) {
212 seq_printf(m, "Type: %s ",
213 tcon->nativeFileSystem);
214 }
215 seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x"
216 "\nPathComponentMax: %d Status: 0x%d",
217 le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
218 le32_to_cpu(tcon->fsAttrInfo.Attributes),
219 le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
220 tcon->tidStatus);
221 if (dev_type == FILE_DEVICE_DISK)
222 seq_puts(m, " type: DISK ");
223 else if (dev_type == FILE_DEVICE_CD_ROM)
224 seq_puts(m, " type: CDROM ");
225 else
226 seq_printf(m, " type: %d ", dev_type);
227
228 if (tcon->need_reconnect)
229 seq_puts(m, "\tDISCONNECTED ");
230 seq_putc(m, '\n');
231 }
232
233 seq_puts(m, "\n\tMIDs:\n");
234
235 spin_lock(&GlobalMid_Lock);
236 list_for_each(tmp3, &server->pending_mid_q) {
237 mid_entry = list_entry(tmp3, struct mid_q_entry,
238 qhead);
239 seq_printf(m, "\tState: %d com: %d pid:"
240 " %d cbdata: %p mid %llu\n",
241 mid_entry->mid_state,
242 le16_to_cpu(mid_entry->command),
243 mid_entry->pid,
244 mid_entry->callback_data,
245 mid_entry->mid);
246 }
247 spin_unlock(&GlobalMid_Lock);
248 }
249 }
250 spin_unlock(&cifs_tcp_ses_lock);
251 seq_putc(m, '\n');
252
253 /* BB add code to dump additional info such as TCP session info now */
254 return 0;
255 }
256
257 static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
258 {
259 return single_open(file, cifs_debug_data_proc_show, NULL);
260 }
261
262 static const struct file_operations cifs_debug_data_proc_fops = {
263 .owner = THIS_MODULE,
264 .open = cifs_debug_data_proc_open,
265 .read = seq_read,
266 .llseek = seq_lseek,
267 .release = single_release,
268 };
269
270 #ifdef CONFIG_CIFS_STATS
271 static ssize_t cifs_stats_proc_write(struct file *file,
272 const char __user *buffer, size_t count, loff_t *ppos)
273 {
274 char c;
275 int rc;
276 struct list_head *tmp1, *tmp2, *tmp3;
277 struct TCP_Server_Info *server;
278 struct cifs_ses *ses;
279 struct cifs_tcon *tcon;
280
281 rc = get_user(c, buffer);
282 if (rc)
283 return rc;
284
285 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
286 #ifdef CONFIG_CIFS_STATS2
287 atomic_set(&totBufAllocCount, 0);
288 atomic_set(&totSmBufAllocCount, 0);
289 #endif /* CONFIG_CIFS_STATS2 */
290 spin_lock(&cifs_tcp_ses_lock);
291 list_for_each(tmp1, &cifs_tcp_ses_list) {
292 server = list_entry(tmp1, struct TCP_Server_Info,
293 tcp_ses_list);
294 list_for_each(tmp2, &server->smb_ses_list) {
295 ses = list_entry(tmp2, struct cifs_ses,
296 smb_ses_list);
297 list_for_each(tmp3, &ses->tcon_list) {
298 tcon = list_entry(tmp3,
299 struct cifs_tcon,
300 tcon_list);
301 atomic_set(&tcon->num_smbs_sent, 0);
302 if (server->ops->clear_stats)
303 server->ops->clear_stats(tcon);
304 }
305 }
306 }
307 spin_unlock(&cifs_tcp_ses_lock);
308 }
309
310 return count;
311 }
312
313 static int cifs_stats_proc_show(struct seq_file *m, void *v)
314 {
315 int i;
316 struct list_head *tmp1, *tmp2, *tmp3;
317 struct TCP_Server_Info *server;
318 struct cifs_ses *ses;
319 struct cifs_tcon *tcon;
320
321 seq_printf(m,
322 "Resources in use\nCIFS Session: %d\n",
323 sesInfoAllocCount.counter);
324 seq_printf(m, "Share (unique mount targets): %d\n",
325 tconInfoAllocCount.counter);
326 seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
327 bufAllocCount.counter,
328 cifs_min_rcv + tcpSesAllocCount.counter);
329 seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
330 smBufAllocCount.counter, cifs_min_small);
331 #ifdef CONFIG_CIFS_STATS2
332 seq_printf(m, "Total Large %d Small %d Allocations\n",
333 atomic_read(&totBufAllocCount),
334 atomic_read(&totSmBufAllocCount));
335 #endif /* CONFIG_CIFS_STATS2 */
336
337 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
338 seq_printf(m,
339 "\n%d session %d share reconnects\n",
340 tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
341
342 seq_printf(m,
343 "Total vfs operations: %d maximum at one time: %d\n",
344 GlobalCurrentXid, GlobalMaxActiveXid);
345
346 i = 0;
347 spin_lock(&cifs_tcp_ses_lock);
348 list_for_each(tmp1, &cifs_tcp_ses_list) {
349 server = list_entry(tmp1, struct TCP_Server_Info,
350 tcp_ses_list);
351 list_for_each(tmp2, &server->smb_ses_list) {
352 ses = list_entry(tmp2, struct cifs_ses,
353 smb_ses_list);
354 list_for_each(tmp3, &ses->tcon_list) {
355 tcon = list_entry(tmp3,
356 struct cifs_tcon,
357 tcon_list);
358 i++;
359 seq_printf(m, "\n%d) %s", i, tcon->treeName);
360 if (tcon->need_reconnect)
361 seq_puts(m, "\tDISCONNECTED ");
362 seq_printf(m, "\nSMBs: %d",
363 atomic_read(&tcon->num_smbs_sent));
364 if (server->ops->print_stats)
365 server->ops->print_stats(m, tcon);
366 }
367 }
368 }
369 spin_unlock(&cifs_tcp_ses_lock);
370
371 seq_putc(m, '\n');
372 return 0;
373 }
374
375 static int cifs_stats_proc_open(struct inode *inode, struct file *file)
376 {
377 return single_open(file, cifs_stats_proc_show, NULL);
378 }
379
380 static const struct file_operations cifs_stats_proc_fops = {
381 .owner = THIS_MODULE,
382 .open = cifs_stats_proc_open,
383 .read = seq_read,
384 .llseek = seq_lseek,
385 .release = single_release,
386 .write = cifs_stats_proc_write,
387 };
388 #endif /* STATS */
389
390 static struct proc_dir_entry *proc_fs_cifs;
391 static const struct file_operations cifsFYI_proc_fops;
392 static const struct file_operations cifs_lookup_cache_proc_fops;
393 static const struct file_operations traceSMB_proc_fops;
394 static const struct file_operations cifs_security_flags_proc_fops;
395 static const struct file_operations cifs_linux_ext_proc_fops;
396
397 void
398 cifs_proc_init(void)
399 {
400 proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
401 if (proc_fs_cifs == NULL)
402 return;
403
404 proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
405
406 #ifdef CONFIG_CIFS_STATS
407 proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
408 #endif /* STATS */
409 proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
410 proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
411 proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
412 &cifs_linux_ext_proc_fops);
413 proc_create("SecurityFlags", 0, proc_fs_cifs,
414 &cifs_security_flags_proc_fops);
415 proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
416 &cifs_lookup_cache_proc_fops);
417 }
418
419 void
420 cifs_proc_clean(void)
421 {
422 if (proc_fs_cifs == NULL)
423 return;
424
425 remove_proc_entry("DebugData", proc_fs_cifs);
426 remove_proc_entry("cifsFYI", proc_fs_cifs);
427 remove_proc_entry("traceSMB", proc_fs_cifs);
428 #ifdef CONFIG_CIFS_STATS
429 remove_proc_entry("Stats", proc_fs_cifs);
430 #endif
431 remove_proc_entry("SecurityFlags", proc_fs_cifs);
432 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
433 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
434 remove_proc_entry("fs/cifs", NULL);
435 }
436
437 static int cifsFYI_proc_show(struct seq_file *m, void *v)
438 {
439 seq_printf(m, "%d\n", cifsFYI);
440 return 0;
441 }
442
443 static int cifsFYI_proc_open(struct inode *inode, struct file *file)
444 {
445 return single_open(file, cifsFYI_proc_show, NULL);
446 }
447
448 static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
449 size_t count, loff_t *ppos)
450 {
451 char c;
452 int rc;
453
454 rc = get_user(c, buffer);
455 if (rc)
456 return rc;
457 if (c == '0' || c == 'n' || c == 'N')
458 cifsFYI = 0;
459 else if (c == '1' || c == 'y' || c == 'Y')
460 cifsFYI = 1;
461 else if ((c > '1') && (c <= '9'))
462 cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
463
464 return count;
465 }
466
467 static const struct file_operations cifsFYI_proc_fops = {
468 .owner = THIS_MODULE,
469 .open = cifsFYI_proc_open,
470 .read = seq_read,
471 .llseek = seq_lseek,
472 .release = single_release,
473 .write = cifsFYI_proc_write,
474 };
475
476 static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
477 {
478 seq_printf(m, "%d\n", linuxExtEnabled);
479 return 0;
480 }
481
482 static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
483 {
484 return single_open(file, cifs_linux_ext_proc_show, NULL);
485 }
486
487 static ssize_t cifs_linux_ext_proc_write(struct file *file,
488 const char __user *buffer, size_t count, loff_t *ppos)
489 {
490 char c;
491 int rc;
492
493 rc = get_user(c, buffer);
494 if (rc)
495 return rc;
496 if (c == '0' || c == 'n' || c == 'N')
497 linuxExtEnabled = 0;
498 else if (c == '1' || c == 'y' || c == 'Y')
499 linuxExtEnabled = 1;
500
501 return count;
502 }
503
504 static const struct file_operations cifs_linux_ext_proc_fops = {
505 .owner = THIS_MODULE,
506 .open = cifs_linux_ext_proc_open,
507 .read = seq_read,
508 .llseek = seq_lseek,
509 .release = single_release,
510 .write = cifs_linux_ext_proc_write,
511 };
512
513 static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
514 {
515 seq_printf(m, "%d\n", lookupCacheEnabled);
516 return 0;
517 }
518
519 static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
520 {
521 return single_open(file, cifs_lookup_cache_proc_show, NULL);
522 }
523
524 static ssize_t cifs_lookup_cache_proc_write(struct file *file,
525 const char __user *buffer, size_t count, loff_t *ppos)
526 {
527 char c;
528 int rc;
529
530 rc = get_user(c, buffer);
531 if (rc)
532 return rc;
533 if (c == '0' || c == 'n' || c == 'N')
534 lookupCacheEnabled = 0;
535 else if (c == '1' || c == 'y' || c == 'Y')
536 lookupCacheEnabled = 1;
537
538 return count;
539 }
540
541 static const struct file_operations cifs_lookup_cache_proc_fops = {
542 .owner = THIS_MODULE,
543 .open = cifs_lookup_cache_proc_open,
544 .read = seq_read,
545 .llseek = seq_lseek,
546 .release = single_release,
547 .write = cifs_lookup_cache_proc_write,
548 };
549
550 static int traceSMB_proc_show(struct seq_file *m, void *v)
551 {
552 seq_printf(m, "%d\n", traceSMB);
553 return 0;
554 }
555
556 static int traceSMB_proc_open(struct inode *inode, struct file *file)
557 {
558 return single_open(file, traceSMB_proc_show, NULL);
559 }
560
561 static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
562 size_t count, loff_t *ppos)
563 {
564 char c;
565 int rc;
566
567 rc = get_user(c, buffer);
568 if (rc)
569 return rc;
570 if (c == '0' || c == 'n' || c == 'N')
571 traceSMB = 0;
572 else if (c == '1' || c == 'y' || c == 'Y')
573 traceSMB = 1;
574
575 return count;
576 }
577
578 static const struct file_operations traceSMB_proc_fops = {
579 .owner = THIS_MODULE,
580 .open = traceSMB_proc_open,
581 .read = seq_read,
582 .llseek = seq_lseek,
583 .release = single_release,
584 .write = traceSMB_proc_write,
585 };
586
587 static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
588 {
589 seq_printf(m, "0x%x\n", global_secflags);
590 return 0;
591 }
592
593 static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
594 {
595 return single_open(file, cifs_security_flags_proc_show, NULL);
596 }
597
598 static ssize_t cifs_security_flags_proc_write(struct file *file,
599 const char __user *buffer, size_t count, loff_t *ppos)
600 {
601 unsigned int flags;
602 char flags_string[12];
603 char c;
604
605 if ((count < 1) || (count > 11))
606 return -EINVAL;
607
608 memset(flags_string, 0, 12);
609
610 if (copy_from_user(flags_string, buffer, count))
611 return -EFAULT;
612
613 if (count < 3) {
614 /* single char or single char followed by null */
615 c = flags_string[0];
616 if (c == '0' || c == 'n' || c == 'N') {
617 global_secflags = CIFSSEC_DEF; /* default */
618 return count;
619 } else if (c == '1' || c == 'y' || c == 'Y') {
620 global_secflags = CIFSSEC_MAX;
621 return count;
622 } else if (!isdigit(c)) {
623 cifs_dbg(VFS, "invalid flag %c\n", c);
624 return -EINVAL;
625 }
626 }
627 /* else we have a number */
628
629 flags = simple_strtoul(flags_string, NULL, 0);
630
631 cifs_dbg(FYI, "sec flags 0x%x\n", flags);
632
633 if (flags <= 0) {
634 cifs_dbg(VFS, "invalid security flags %s\n", flags_string);
635 return -EINVAL;
636 }
637
638 if (flags & ~CIFSSEC_MASK) {
639 cifs_dbg(VFS, "attempt to set unsupported security flags 0x%x\n",
640 flags & ~CIFSSEC_MASK);
641 return -EINVAL;
642 }
643 /* flags look ok - update the global security flags for cifs module */
644 global_secflags = flags;
645 if (global_secflags & CIFSSEC_MUST_SIGN) {
646 /* requiring signing implies signing is allowed */
647 global_secflags |= CIFSSEC_MAY_SIGN;
648 cifs_dbg(FYI, "packet signing now required\n");
649 } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) {
650 cifs_dbg(FYI, "packet signing disabled\n");
651 }
652 /* BB should we turn on MAY flags for other MUST options? */
653 return count;
654 }
655
656 static const struct file_operations cifs_security_flags_proc_fops = {
657 .owner = THIS_MODULE,
658 .open = cifs_security_flags_proc_open,
659 .read = seq_read,
660 .llseek = seq_lseek,
661 .release = single_release,
662 .write = cifs_security_flags_proc_write,
663 };
664 #else
665 inline void cifs_proc_init(void)
666 {
667 }
668
669 inline void cifs_proc_clean(void)
670 {
671 }
672 #endif /* PROC_FS */
Linus' kernel tree