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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/fs/cifs/cifs_debug.c
....@@ -1,23 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *   fs/cifs_debug.c
34  *
45  *   Copyright (C) International Business Machines  Corp., 2000,2005
56  *
67  *   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
218  */
229 #include <linux/fs.h>
2310 #include <linux/string.h>
....@@ -30,6 +17,9 @@
3017 #include "cifsproto.h"
3118 #include "cifs_debug.h"
3219 #include "cifsfs.h"
20
+#ifdef CONFIG_CIFS_DFS_UPCALL
21
+#include "dfs_cache.h"
22
+#endif
3323 #ifdef CONFIG_CIFS_SMB_DIRECT
3424 #include "smbdirect.h"
3525 #endif
....@@ -112,7 +102,12 @@
112102 		seq_puts(m, " type: CDROM ");
113103 	else
114104 		seq_printf(m, " type: %d ", dev_type);
115
-	if (tcon->seal)
105
+
106
+	seq_printf(m, "Serial Number: 0x%x", tcon->vol_serial_number);
107
+
108
+	if ((tcon->seal) ||
109
+	    (tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) ||
110
+	    (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA))
116111 		seq_printf(m, " Encrypted");
117112 	if (tcon->nocase)
118113 		seq_printf(m, " nocase");
....@@ -127,12 +122,33 @@
127122 }
128123 
129124 static void
125
+cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan)
126
+{
127
+	struct TCP_Server_Info *server = chan->server;
128
+
129
+	seq_printf(m, "\t\tChannel %d Number of credits: %d Dialect 0x%x "
130
+		   "TCP status: %d Instance: %d Local Users To Server: %d "
131
+		   "SecMode: 0x%x Req On Wire: %d In Send: %d "
132
+		   "In MaxReq Wait: %d\n",
133
+		   i+1,
134
+		   server->credits,
135
+		   server->dialect,
136
+		   server->tcpStatus,
137
+		   server->reconnect_instance,
138
+		   server->srv_count,
139
+		   server->sec_mode,
140
+		   in_flight(server),
141
+		   atomic_read(&server->in_send),
142
+		   atomic_read(&server->num_waiters));
143
+}
144
+
145
+static void
130146 cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface)
131147 {
132148 	struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr;
133149 	struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr;
134150 
135
-	seq_printf(m, "\t\tSpeed: %zu bps\n", iface->speed);
151
+	seq_printf(m, "\tSpeed: %zu bps\n", iface->speed);
136152 	seq_puts(m, "\t\tCapabilities: ");
137153 	if (iface->rdma_capable)
138154 		seq_puts(m, "rdma ");
....@@ -143,6 +159,58 @@
143159 		seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr);
144160 	else if (iface->sockaddr.ss_family == AF_INET6)
145161 		seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr);
162
+}
163
+
164
+static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
165
+{
166
+	struct list_head *stmp, *tmp, *tmp1, *tmp2;
167
+	struct TCP_Server_Info *server;
168
+	struct cifs_ses *ses;
169
+	struct cifs_tcon *tcon;
170
+	struct cifsFileInfo *cfile;
171
+
172
+	seq_puts(m, "# Version:1\n");
173
+	seq_puts(m, "# Format:\n");
174
+	seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>");
175
+#ifdef CONFIG_CIFS_DEBUG2
176
+	seq_printf(m, " <filename> <mid>\n");
177
+#else
178
+	seq_printf(m, " <filename>\n");
179
+#endif /* CIFS_DEBUG2 */
180
+	spin_lock(&cifs_tcp_ses_lock);
181
+	list_for_each(stmp, &cifs_tcp_ses_list) {
182
+		server = list_entry(stmp, struct TCP_Server_Info,
183
+				    tcp_ses_list);
184
+		list_for_each(tmp, &server->smb_ses_list) {
185
+			ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
186
+			list_for_each(tmp1, &ses->tcon_list) {
187
+				tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
188
+				spin_lock(&tcon->open_file_lock);
189
+				list_for_each(tmp2, &tcon->openFileList) {
190
+					cfile = list_entry(tmp2, struct cifsFileInfo,
191
+						     tlist);
192
+					seq_printf(m,
193
+						"0x%x 0x%llx 0x%x %d %d %d %s",
194
+						tcon->tid,
195
+						cfile->fid.persistent_fid,
196
+						cfile->f_flags,
197
+						cfile->count,
198
+						cfile->pid,
199
+						from_kuid(&init_user_ns, cfile->uid),
200
+						cfile->dentry->d_name.name);
201
+#ifdef CONFIG_CIFS_DEBUG2
202
+					seq_printf(m, " 0x%llx\n", cfile->fid.mid);
203
+#else
204
+					seq_printf(m, "\n");
205
+#endif /* CIFS_DEBUG2 */
206
+				}
207
+				spin_unlock(&tcon->open_file_lock);
208
+			}
209
+		}
210
+	}
211
+	spin_unlock(&cifs_tcp_ses_lock);
212
+	seq_putc(m, '\n');
213
+	return 0;
146214 }
147215 
148216 static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
....@@ -193,10 +261,9 @@
193261 #ifdef CONFIG_CIFS_XATTR
194262 	seq_printf(m, ",XATTR");
195263 #endif
196
-#ifdef CONFIG_CIFS_ACL
197264 	seq_printf(m, ",ACL");
198
-#endif
199265 	seq_putc(m, '\n');
266
+	seq_printf(m, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize);
200267 	seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
201268 	seq_printf(m, "Servers:");
202269 
....@@ -256,12 +323,8 @@
256323 			atomic_read(&server->smbd_conn->send_credits),
257324 			atomic_read(&server->smbd_conn->receive_credits),
258325 			server->smbd_conn->receive_credit_target);
259
-		seq_printf(m, "\nPending send_pending: %x send_payload_pending:"
260
-			" %x smbd_send_pending: %x smbd_recv_pending: %x",
261
-			atomic_read(&server->smbd_conn->send_pending),
262
-			atomic_read(&server->smbd_conn->send_payload_pending),
263
-			server->smbd_conn->smbd_send_pending,
264
-			server->smbd_conn->smbd_recv_pending);
326
+		seq_printf(m, "\nPending send_pending: %x ",
327
+			atomic_read(&server->smbd_conn->send_pending));
265328 		seq_printf(m, "\nReceive buffers count_receive_queue: %x "
266329 			"count_empty_packet_queue: %x",
267330 			server->smbd_conn->count_receive_queue,
....@@ -278,6 +341,12 @@
278341 #endif
279342 		seq_printf(m, "\nNumber of credits: %d Dialect 0x%x",
280343 			server->credits,  server->dialect);
344
+		if (server->compress_algorithm == SMB3_COMPRESS_LZNT1)
345
+			seq_printf(m, " COMPRESS_LZNT1");
346
+		else if (server->compress_algorithm == SMB3_COMPRESS_LZ77)
347
+			seq_printf(m, " COMPRESS_LZ77");
348
+		else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF)
349
+			seq_printf(m, " COMPRESS_LZ77_HUFF");
281350 		if (server->sign)
282351 			seq_printf(m, " signed");
283352 		if (server->posix_ext_supported)
....@@ -290,7 +359,7 @@
290359 			if ((ses->serverDomain == NULL) ||
291360 				(ses->serverOS == NULL) ||
292361 				(ses->serverNOS == NULL)) {
293
-				seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d\t",
362
+				seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d ",
294363 					i, ses->serverName, ses->ses_count,
295364 					ses->capabilities, ses->status);
296365 				if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
....@@ -301,25 +370,47 @@
301370 				seq_printf(m,
302371 				    "\n%d) Name: %s  Domain: %s Uses: %d OS:"
303372 				    " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
304
-				    " session status: %d\t",
373
+				    " session status: %d ",
305374 				i, ses->serverName, ses->serverDomain,
306375 				ses->ses_count, ses->serverOS, ses->serverNOS,
307376 				ses->capabilities, ses->status);
308377 			}
378
+
379
+			seq_printf(m,"Security type: %s\n",
380
+				get_security_type_str(server->ops->select_sectype(server, ses->sectype)));
381
+
309382 			if (server->rdma)
310383 				seq_printf(m, "RDMA\n\t");
311
-			seq_printf(m, "TCP status: %d\n\tLocal Users To "
384
+			seq_printf(m, "TCP status: %d Instance: %d\n\tLocal Users To "
312385 				   "Server: %d SecMode: 0x%x Req On Wire: %d",
313
-				   server->tcpStatus, server->srv_count,
386
+				   server->tcpStatus,
387
+				   server->reconnect_instance,
388
+				   server->srv_count,
314389 				   server->sec_mode, in_flight(server));
315390 
316
-#ifdef CONFIG_CIFS_STATS2
317391 			seq_printf(m, " In Send: %d In MaxReq Wait: %d",
318392 				atomic_read(&server->in_send),
319393 				atomic_read(&server->num_waiters));
320
-#endif
321394 
322
-			seq_puts(m, "\n\tShares:");
395
+			/* dump session id helpful for use with network trace */
396
+			seq_printf(m, " SessionId: 0x%llx", ses->Suid);
397
+			if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
398
+				seq_puts(m, " encrypted");
399
+			if (ses->sign)
400
+				seq_puts(m, " signed");
401
+
402
+			seq_printf(m, "\n\tUser: %d Cred User: %d",
403
+				   from_kuid(&init_user_ns, ses->linux_uid),
404
+				   from_kuid(&init_user_ns, ses->cred_uid));
405
+
406
+			if (ses->chan_count > 1) {
407
+				seq_printf(m, "\n\n\tExtra Channels: %zu\n",
408
+					   ses->chan_count-1);
409
+				for (j = 1; j < ses->chan_count; j++)
410
+					cifs_dump_channel(m, j, &ses->chans[j]);
411
+			}
412
+
413
+			seq_puts(m, "\n\n\tShares:");
323414 			j = 0;
324415 
325416 			seq_printf(m, "\n\t%d) IPC: ", j);
....@@ -357,8 +448,13 @@
357448 				seq_printf(m, "\n\tServer interfaces: %zu\n",
358449 					   ses->iface_count);
359450 			for (j = 0; j < ses->iface_count; j++) {
360
-				seq_printf(m, "\t%d)\n", j);
361
-				cifs_dump_iface(m, &ses->iface_list[j]);
451
+				struct cifs_server_iface *iface;
452
+
453
+				iface = &ses->iface_list[j];
454
+				seq_printf(m, "\t%d)", j);
455
+				cifs_dump_iface(m, iface);
456
+				if (is_ses_using_iface(ses, iface))
457
+					seq_puts(m, "\t\t[CONNECTED]\n");
362458 			}
363459 			spin_unlock(&ses->iface_lock);
364460 		}
....@@ -399,9 +495,15 @@
399495 		list_for_each(tmp1, &cifs_tcp_ses_list) {
400496 			server = list_entry(tmp1, struct TCP_Server_Info,
401497 					    tcp_ses_list);
498
+			server->max_in_flight = 0;
402499 #ifdef CONFIG_CIFS_STATS2
403
-			for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++)
500
+			for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
501
+				atomic_set(&server->num_cmds[i], 0);
404502 				atomic_set(&server->smb2slowcmd[i], 0);
503
+				server->time_per_cmd[i] = 0;
504
+				server->slowest_cmd[i] = 0;
505
+				server->fastest_cmd[0] = 0;
506
+			}
405507 #endif /* CONFIG_CIFS_STATS2 */
406508 			list_for_each(tmp2, &server->smb_ses_list) {
407509 				ses = list_entry(tmp2, struct cifs_ses,
....@@ -468,10 +570,21 @@
468570 	list_for_each(tmp1, &cifs_tcp_ses_list) {
469571 		server = list_entry(tmp1, struct TCP_Server_Info,
470572 				    tcp_ses_list);
573
+		seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight);
471574 #ifdef CONFIG_CIFS_STATS2
575
+		seq_puts(m, "\nTotal time spent processing by command. Time ");
576
+		seq_printf(m, "units are jiffies (%d per second)\n", HZ);
577
+		seq_puts(m, "  SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n");
578
+		seq_puts(m, "  --------\t------\t----------\t-------\t-------\n");
579
+		for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
580
+			seq_printf(m, "  %d\t\t%d\t%llu\t\t%u\t%u\n", j,
581
+				atomic_read(&server->num_cmds[j]),
582
+				server->time_per_cmd[j],
583
+				server->fastest_cmd[j],
584
+				server->slowest_cmd[j]);
472585 		for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
473586 			if (atomic_read(&server->smb2slowcmd[j]))
474
-				seq_printf(m, "%d slow responses from %s for command %d\n",
587
+				seq_printf(m, "  %d slow responses from %s for command %d\n",
475588 					atomic_read(&server->smb2slowcmd[j]),
476589 					server->hostname, j);
477590 #endif /* STATS2 */
....@@ -504,12 +617,12 @@
504617 	return single_open(file, cifs_stats_proc_show, NULL);
505618 }
506619 
507
-static const struct file_operations cifs_stats_proc_fops = {
508
-	.open		= cifs_stats_proc_open,
509
-	.read		= seq_read,
510
-	.llseek		= seq_lseek,
511
-	.release	= single_release,
512
-	.write		= cifs_stats_proc_write,
620
+static const struct proc_ops cifs_stats_proc_ops = {
621
+	.proc_open	= cifs_stats_proc_open,
622
+	.proc_read	= seq_read,
623
+	.proc_lseek	= seq_lseek,
624
+	.proc_release	= single_release,
625
+	.proc_write	= cifs_stats_proc_write,
513626 };
514627 
515628 #ifdef CONFIG_CIFS_SMB_DIRECT
....@@ -533,12 +646,12 @@
533646 	return single_open(file, name##_proc_show, NULL); \
534647 } \
535648 \
536
-static const struct file_operations cifs_##name##_proc_fops = { \
537
-	.open		= name##_open, \
538
-	.read		= seq_read, \
539
-	.llseek		= seq_lseek, \
540
-	.release	= single_release, \
541
-	.write		= name##_write, \
649
+static const struct proc_ops cifs_##name##_proc_fops = { \
650
+	.proc_open	= name##_open, \
651
+	.proc_read	= seq_read, \
652
+	.proc_lseek	= seq_lseek, \
653
+	.proc_release	= single_release, \
654
+	.proc_write	= name##_write, \
542655 }
543656 
544657 PROC_FILE_DEFINE(rdma_readwrite_threshold);
....@@ -552,11 +665,11 @@
552665 #endif
553666 
554667 static struct proc_dir_entry *proc_fs_cifs;
555
-static const struct file_operations cifsFYI_proc_fops;
556
-static const struct file_operations cifs_lookup_cache_proc_fops;
557
-static const struct file_operations traceSMB_proc_fops;
558
-static const struct file_operations cifs_security_flags_proc_fops;
559
-static const struct file_operations cifs_linux_ext_proc_fops;
668
+static const struct proc_ops cifsFYI_proc_ops;
669
+static const struct proc_ops cifs_lookup_cache_proc_ops;
670
+static const struct proc_ops traceSMB_proc_ops;
671
+static const struct proc_ops cifs_security_flags_proc_ops;
672
+static const struct proc_ops cifs_linux_ext_proc_ops;
560673 
561674 void
562675 cifs_proc_init(void)
....@@ -568,15 +681,23 @@
568681 	proc_create_single("DebugData", 0, proc_fs_cifs,
569682 			cifs_debug_data_proc_show);
570683 
571
-	proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops);
572
-	proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops);
573
-	proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops);
684
+	proc_create_single("open_files", 0400, proc_fs_cifs,
685
+			cifs_debug_files_proc_show);
686
+
687
+	proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops);
688
+	proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops);
689
+	proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops);
574690 	proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs,
575
-		    &cifs_linux_ext_proc_fops);
691
+		    &cifs_linux_ext_proc_ops);
576692 	proc_create("SecurityFlags", 0644, proc_fs_cifs,
577
-		    &cifs_security_flags_proc_fops);
693
+		    &cifs_security_flags_proc_ops);
578694 	proc_create("LookupCacheEnabled", 0644, proc_fs_cifs,
579
-		    &cifs_lookup_cache_proc_fops);
695
+		    &cifs_lookup_cache_proc_ops);
696
+
697
+#ifdef CONFIG_CIFS_DFS_UPCALL
698
+	proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops);
699
+#endif
700
+
580701 #ifdef CONFIG_CIFS_SMB_DIRECT
581702 	proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs,
582703 		&cifs_rdma_readwrite_threshold_proc_fops);
....@@ -604,12 +725,17 @@
604725 		return;
605726 
606727 	remove_proc_entry("DebugData", proc_fs_cifs);
728
+	remove_proc_entry("open_files", proc_fs_cifs);
607729 	remove_proc_entry("cifsFYI", proc_fs_cifs);
608730 	remove_proc_entry("traceSMB", proc_fs_cifs);
609731 	remove_proc_entry("Stats", proc_fs_cifs);
610732 	remove_proc_entry("SecurityFlags", proc_fs_cifs);
611733 	remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
612734 	remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
735
+
736
+#ifdef CONFIG_CIFS_DFS_UPCALL
737
+	remove_proc_entry("dfscache", proc_fs_cifs);
738
+#endif
613739 #ifdef CONFIG_CIFS_SMB_DIRECT
614740 	remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs);
615741 	remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs);
....@@ -654,12 +780,12 @@
654780 	return count;
655781 }
656782 
657
-static const struct file_operations cifsFYI_proc_fops = {
658
-	.open		= cifsFYI_proc_open,
659
-	.read		= seq_read,
660
-	.llseek		= seq_lseek,
661
-	.release	= single_release,
662
-	.write		= cifsFYI_proc_write,
783
+static const struct proc_ops cifsFYI_proc_ops = {
784
+	.proc_open	= cifsFYI_proc_open,
785
+	.proc_read	= seq_read,
786
+	.proc_lseek	= seq_lseek,
787
+	.proc_release	= single_release,
788
+	.proc_write	= cifsFYI_proc_write,
663789 };
664790 
665791 static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
....@@ -685,12 +811,12 @@
685811 	return count;
686812 }
687813 
688
-static const struct file_operations cifs_linux_ext_proc_fops = {
689
-	.open		= cifs_linux_ext_proc_open,
690
-	.read		= seq_read,
691
-	.llseek		= seq_lseek,
692
-	.release	= single_release,
693
-	.write		= cifs_linux_ext_proc_write,
814
+static const struct proc_ops cifs_linux_ext_proc_ops = {
815
+	.proc_open	= cifs_linux_ext_proc_open,
816
+	.proc_read	= seq_read,
817
+	.proc_lseek	= seq_lseek,
818
+	.proc_release	= single_release,
819
+	.proc_write	= cifs_linux_ext_proc_write,
694820 };
695821 
696822 static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
....@@ -716,12 +842,12 @@
716842 	return count;
717843 }
718844 
719
-static const struct file_operations cifs_lookup_cache_proc_fops = {
720
-	.open		= cifs_lookup_cache_proc_open,
721
-	.read		= seq_read,
722
-	.llseek		= seq_lseek,
723
-	.release	= single_release,
724
-	.write		= cifs_lookup_cache_proc_write,
845
+static const struct proc_ops cifs_lookup_cache_proc_ops = {
846
+	.proc_open	= cifs_lookup_cache_proc_open,
847
+	.proc_read	= seq_read,
848
+	.proc_lseek	= seq_lseek,
849
+	.proc_release	= single_release,
850
+	.proc_write	= cifs_lookup_cache_proc_write,
725851 };
726852 
727853 static int traceSMB_proc_show(struct seq_file *m, void *v)
....@@ -747,12 +873,12 @@
747873 	return count;
748874 }
749875 
750
-static const struct file_operations traceSMB_proc_fops = {
751
-	.open		= traceSMB_proc_open,
752
-	.read		= seq_read,
753
-	.llseek		= seq_lseek,
754
-	.release	= single_release,
755
-	.write		= traceSMB_proc_write,
876
+static const struct proc_ops traceSMB_proc_ops = {
877
+	.proc_open	= traceSMB_proc_open,
878
+	.proc_read	= seq_read,
879
+	.proc_lseek	= seq_lseek,
880
+	.proc_release	= single_release,
881
+	.proc_write	= traceSMB_proc_write,
756882 };
757883 
758884 static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
....@@ -858,12 +984,12 @@
858984 	return count;
859985 }
860986 
861
-static const struct file_operations cifs_security_flags_proc_fops = {
862
-	.open		= cifs_security_flags_proc_open,
863
-	.read		= seq_read,
864
-	.llseek		= seq_lseek,
865
-	.release	= single_release,
866
-	.write		= cifs_security_flags_proc_write,
987
+static const struct proc_ops cifs_security_flags_proc_ops = {
988
+	.proc_open	= cifs_security_flags_proc_open,
989
+	.proc_read	= seq_read,
990
+	.proc_lseek	= seq_lseek,
991
+	.proc_release	= single_release,
992
+	.proc_write	= cifs_security_flags_proc_write,
867993 };
868994 #else
869995 inline void cifs_proc_init(void)