forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-09-20 a36159eec6ca17402b0e146b86efaf76568dc353 
 kernel/fs/ocfs2/dlm/dlmdebug.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /* -*- mode: c; c-basic-offset: 8; -*-
23  * vim: noexpandtab sw=8 ts=8 sts=0:
34  *
....@@ -6,22 +7,6 @@
67  * debug functionality for the dlm
78  *
89  * Copyright (C) 2004, 2008 Oracle.  All rights reserved.
9
- *
10
- * This program is free software; you can redistribute it and/or
11
- * modify it under the terms of the GNU General Public
12
- * License as published by the Free Software Foundation; either
13
- * version 2 of the License, or (at your option) any later version.
14
- *
15
- * This program is distributed in the hope that it will be useful,
16
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
- * General Public License for more details.
19
- *
20
- * You should have received a copy of the GNU General Public
21
- * License along with this program; if not, write to the
22
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23
- * Boston, MA 021110-1307, USA.
24
- *
2510  */
2611 
2712 #include <linux/types.h>
....@@ -32,9 +17,9 @@
3217 #include <linux/debugfs.h>
3318 #include <linux/export.h>
3419 
35
-#include "cluster/heartbeat.h"
36
-#include "cluster/nodemanager.h"
37
-#include "cluster/tcp.h"
20
+#include "../cluster/heartbeat.h"
21
+#include "../cluster/nodemanager.h"
22
+#include "../cluster/tcp.h"
3823 
3924 #include "dlmapi.h"
4025 #include "dlmcommon.h"
....@@ -42,7 +27,7 @@
4227 #include "dlmdebug.h"
4328 
4429 #define MLOG_MASK_PREFIX ML_DLM
45
-#include "cluster/masklog.h"
30
+#include "../cluster/masklog.h"
4631 
4732 static int stringify_lockname(const char *lockname, int locklen, char *buf,
4833 			      int len);
....@@ -259,11 +244,11 @@
259244 		memcpy((__be64 *)&inode_blkno_be,
260245 		       (char *)&lockname[OCFS2_DENTRY_LOCK_INO_START],
261246 		       sizeof(__be64));
262
-		out += snprintf(buf + out, len - out, "%.*s%08x",
247
+		out += scnprintf(buf + out, len - out, "%.*s%08x",
263248 				OCFS2_DENTRY_LOCK_INO_START - 1, lockname,
264249 				(unsigned int)be64_to_cpu(inode_blkno_be));
265250 	} else
266
-		out += snprintf(buf + out, len - out, "%.*s",
251
+		out += scnprintf(buf + out, len - out, "%.*s",
267252 				locklen, lockname);
268253 	return out;
269254 }
....@@ -275,7 +260,7 @@
275260 	int i = -1;
276261 
277262 	while ((i = find_next_bit(nodemap, maxnodes, i + 1)) < maxnodes)
278
-		out += snprintf(buf + out, len - out, "%d ", i);
263
+		out += scnprintf(buf + out, len - out, "%d ", i);
279264 
280265 	return out;
281266 }
....@@ -293,34 +278,34 @@
293278 		mle_type = "MIG";
294279 
295280 	out += stringify_lockname(mle->mname, mle->mnamelen, buf + out, len - out);
296
-	out += snprintf(buf + out, len - out,
281
+	out += scnprintf(buf + out, len - out,
297282 			"\t%3s\tmas=%3u\tnew=%3u\tevt=%1d\tuse=%1d\tref=%3d\n",
298283 			mle_type, mle->master, mle->new_master,
299284 			!list_empty(&mle->hb_events),
300285 			!!mle->inuse,
301286 			kref_read(&mle->mle_refs));
302287 
303
-	out += snprintf(buf + out, len - out, "Maybe=");
288
+	out += scnprintf(buf + out, len - out, "Maybe=");
304289 	out += stringify_nodemap(mle->maybe_map, O2NM_MAX_NODES,
305290 				 buf + out, len - out);
306
-	out += snprintf(buf + out, len - out, "\n");
291
+	out += scnprintf(buf + out, len - out, "\n");
307292 
308
-	out += snprintf(buf + out, len - out, "Vote=");
293
+	out += scnprintf(buf + out, len - out, "Vote=");
309294 	out += stringify_nodemap(mle->vote_map, O2NM_MAX_NODES,
310295 				 buf + out, len - out);
311
-	out += snprintf(buf + out, len - out, "\n");
296
+	out += scnprintf(buf + out, len - out, "\n");
312297 
313
-	out += snprintf(buf + out, len - out, "Response=");
298
+	out += scnprintf(buf + out, len - out, "Response=");
314299 	out += stringify_nodemap(mle->response_map, O2NM_MAX_NODES,
315300 				 buf + out, len - out);
316
-	out += snprintf(buf + out, len - out, "\n");
301
+	out += scnprintf(buf + out, len - out, "\n");
317302 
318
-	out += snprintf(buf + out, len - out, "Node=");
303
+	out += scnprintf(buf + out, len - out, "Node=");
319304 	out += stringify_nodemap(mle->node_map, O2NM_MAX_NODES,
320305 				 buf + out, len - out);
321
-	out += snprintf(buf + out, len - out, "\n");
306
+	out += scnprintf(buf + out, len - out, "\n");
322307 
323
-	out += snprintf(buf + out, len - out, "\n");
308
+	out += scnprintf(buf + out, len - out, "\n");
324309 
325310 	return out;
326311 }
....@@ -368,7 +353,7 @@
368353 	int out = 0;
369354 	unsigned long total = 0;
370355 
371
-	out += snprintf(buf + out, len - out,
356
+	out += scnprintf(buf + out, len - out,
372357 			"Dumping Purgelist for Domain: %s\n", dlm->name);
373358 
374359 	spin_lock(&dlm->spinlock);
....@@ -380,13 +365,13 @@
380365 		out += stringify_lockname(res->lockname.name,
381366 					  res->lockname.len,
382367 					  buf + out, len - out);
383
-		out += snprintf(buf + out, len - out, "\t%ld\n",
368
+		out += scnprintf(buf + out, len - out, "\t%ld\n",
384369 				(jiffies - res->last_used)/HZ);
385370 		spin_unlock(&res->spinlock);
386371 	}
387372 	spin_unlock(&dlm->spinlock);
388373 
389
-	out += snprintf(buf + out, len - out, "Total on list: %lu\n", total);
374
+	out += scnprintf(buf + out, len - out, "Total on list: %lu\n", total);
390375 
391376 	return out;
392377 }
....@@ -425,7 +410,7 @@
425410 	int i, out = 0;
426411 	unsigned long total = 0, longest = 0, bucket_count = 0;
427412 
428
-	out += snprintf(buf + out, len - out,
413
+	out += scnprintf(buf + out, len - out,
429414 			"Dumping MLEs for Domain: %s\n", dlm->name);
430415 
431416 	spin_lock(&dlm->master_lock);
....@@ -443,7 +428,7 @@
443428 	}
444429 	spin_unlock(&dlm->master_lock);
445430 
446
-	out += snprintf(buf + out, len - out,
431
+	out += scnprintf(buf + out, len - out,
447432 			"Total: %lu, Longest: %lu\n", total, longest);
448433 	return out;
449434 }
....@@ -482,7 +467,7 @@
482467 
483468 #define DEBUG_LOCK_VERSION	1
484469 	spin_lock(&lock->spinlock);
485
-	out = snprintf(buf, len, "LOCK:%d,%d,%d,%d,%d,%d:%lld,%d,%d,%d,%d,%d,"
470
+	out = scnprintf(buf, len, "LOCK:%d,%d,%d,%d,%d,%d:%lld,%d,%d,%d,%d,%d,"
486471 		       "%d,%d,%d,%d\n",
487472 		       DEBUG_LOCK_VERSION,
488473 		       list_type, lock->ml.type, lock->ml.convert_type,
....@@ -506,13 +491,13 @@
506491 	int i;
507492 	int out = 0;
508493 
509
-	out += snprintf(buf + out, len - out, "NAME:");
494
+	out += scnprintf(buf + out, len - out, "NAME:");
510495 	out += stringify_lockname(res->lockname.name, res->lockname.len,
511496 				  buf + out, len - out);
512
-	out += snprintf(buf + out, len - out, "\n");
497
+	out += scnprintf(buf + out, len - out, "\n");
513498 
514499 #define DEBUG_LRES_VERSION	1
515
-	out += snprintf(buf + out, len - out,
500
+	out += scnprintf(buf + out, len - out,
516501 			"LRES:%d,%d,%d,%ld,%d,%d,%d,%d,%d,%d,%d\n",
517502 			DEBUG_LRES_VERSION,
518503 			res->owner, res->state, res->last_used,
....@@ -524,17 +509,17 @@
524509 			kref_read(&res->refs));
525510 
526511 	/* refmap */
527
-	out += snprintf(buf + out, len - out, "RMAP:");
512
+	out += scnprintf(buf + out, len - out, "RMAP:");
528513 	out += stringify_nodemap(res->refmap, O2NM_MAX_NODES,
529514 				 buf + out, len - out);
530
-	out += snprintf(buf + out, len - out, "\n");
515
+	out += scnprintf(buf + out, len - out, "\n");
531516 
532517 	/* lvb */
533
-	out += snprintf(buf + out, len - out, "LVBX:");
518
+	out += scnprintf(buf + out, len - out, "LVBX:");
534519 	for (i = 0; i < DLM_LVB_LEN; i++)
535
-		out += snprintf(buf + out, len - out,
520
+		out += scnprintf(buf + out, len - out,
536521 					"%02x", (unsigned char)res->lvb[i]);
537
-	out += snprintf(buf + out, len - out, "\n");
522
+	out += scnprintf(buf + out, len - out, "\n");
538523 
539524 	/* granted */
540525 	list_for_each_entry(lock, &res->granted, list)
....@@ -548,7 +533,7 @@
548533 	list_for_each_entry(lock, &res->blocked, list)
549534 		out += dump_lock(lock, 2, buf + out, len - out);
550535 
551
-	out += snprintf(buf + out, len - out, "\n");
536
+	out += scnprintf(buf + out, len - out, "\n");
552537 
553538 	return out;
554539 }
....@@ -698,41 +683,41 @@
698683 	}
699684 
700685 	/* Domain: xxxxxxxxxx  Key: 0xdfbac769 */
701
-	out += snprintf(buf + out, len - out,
686
+	out += scnprintf(buf + out, len - out,
702687 			"Domain: %s  Key: 0x%08x  Protocol: %d.%d\n",
703688 			dlm->name, dlm->key, dlm->dlm_locking_proto.pv_major,
704689 			dlm->dlm_locking_proto.pv_minor);
705690 
706691 	/* Thread Pid: xxx  Node: xxx  State: xxxxx */
707
-	out += snprintf(buf + out, len - out,
692
+	out += scnprintf(buf + out, len - out,
708693 			"Thread Pid: %d  Node: %d  State: %s\n",
709694 			task_pid_nr(dlm->dlm_thread_task), dlm->node_num, state);
710695 
711696 	/* Number of Joins: xxx  Joining Node: xxx */
712
-	out += snprintf(buf + out, len - out,
697
+	out += scnprintf(buf + out, len - out,
713698 			"Number of Joins: %d  Joining Node: %d\n",
714699 			dlm->num_joins, dlm->joining_node);
715700 
716701 	/* Domain Map: xx xx xx */
717
-	out += snprintf(buf + out, len - out, "Domain Map: ");
702
+	out += scnprintf(buf + out, len - out, "Domain Map: ");
718703 	out += stringify_nodemap(dlm->domain_map, O2NM_MAX_NODES,
719704 				 buf + out, len - out);
720
-	out += snprintf(buf + out, len - out, "\n");
705
+	out += scnprintf(buf + out, len - out, "\n");
721706 
722707 	/* Exit Domain Map: xx xx xx */
723
-	out += snprintf(buf + out, len - out, "Exit Domain Map: ");
708
+	out += scnprintf(buf + out, len - out, "Exit Domain Map: ");
724709 	out += stringify_nodemap(dlm->exit_domain_map, O2NM_MAX_NODES,
725710 				 buf + out, len - out);
726
-	out += snprintf(buf + out, len - out, "\n");
711
+	out += scnprintf(buf + out, len - out, "\n");
727712 
728713 	/* Live Map: xx xx xx */
729
-	out += snprintf(buf + out, len - out, "Live Map: ");
714
+	out += scnprintf(buf + out, len - out, "Live Map: ");
730715 	out += stringify_nodemap(dlm->live_nodes_map, O2NM_MAX_NODES,
731716 				 buf + out, len - out);
732
-	out += snprintf(buf + out, len - out, "\n");
717
+	out += scnprintf(buf + out, len - out, "\n");
733718 
734719 	/* Lock Resources: xxx (xxx) */
735
-	out += snprintf(buf + out, len - out,
720
+	out += scnprintf(buf + out, len - out,
736721 			"Lock Resources: %d (%d)\n",
737722 			atomic_read(&dlm->res_cur_count),
738723 			atomic_read(&dlm->res_tot_count));
....@@ -744,29 +729,29 @@
744729 		cur_mles += atomic_read(&dlm->mle_cur_count[i]);
745730 
746731 	/* MLEs: xxx (xxx) */
747
-	out += snprintf(buf + out, len - out,
732
+	out += scnprintf(buf + out, len - out,
748733 			"MLEs: %d (%d)\n", cur_mles, tot_mles);
749734 
750735 	/*  Blocking: xxx (xxx) */
751
-	out += snprintf(buf + out, len - out,
736
+	out += scnprintf(buf + out, len - out,
752737 			"  Blocking: %d (%d)\n",
753738 			atomic_read(&dlm->mle_cur_count[DLM_MLE_BLOCK]),
754739 			atomic_read(&dlm->mle_tot_count[DLM_MLE_BLOCK]));
755740 
756741 	/*  Mastery: xxx (xxx) */
757
-	out += snprintf(buf + out, len - out,
742
+	out += scnprintf(buf + out, len - out,
758743 			"  Mastery: %d (%d)\n",
759744 			atomic_read(&dlm->mle_cur_count[DLM_MLE_MASTER]),
760745 			atomic_read(&dlm->mle_tot_count[DLM_MLE_MASTER]));
761746 
762747 	/*  Migration: xxx (xxx) */
763
-	out += snprintf(buf + out, len - out,
748
+	out += scnprintf(buf + out, len - out,
764749 			"  Migration: %d (%d)\n",
765750 			atomic_read(&dlm->mle_cur_count[DLM_MLE_MIGRATION]),
766751 			atomic_read(&dlm->mle_tot_count[DLM_MLE_MIGRATION]));
767752 
768753 	/* Lists: Dirty=Empty  Purge=InUse  PendingASTs=Empty  ... */
769
-	out += snprintf(buf + out, len - out,
754
+	out += scnprintf(buf + out, len - out,
770755 			"Lists: Dirty=%s  Purge=%s  PendingASTs=%s  "
771756 			"PendingBASTs=%s\n",
772757 			(list_empty(&dlm->dirty_list) ? "Empty" : "InUse"),
....@@ -775,12 +760,12 @@
775760 			(list_empty(&dlm->pending_basts) ? "Empty" : "InUse"));
776761 
777762 	/* Purge Count: xxx  Refs: xxx */
778
-	out += snprintf(buf + out, len - out,
763
+	out += scnprintf(buf + out, len - out,
779764 			"Purge Count: %d  Refs: %d\n", dlm->purge_count,
780765 			kref_read(&dlm->dlm_refs));
781766 
782767 	/* Dead Node: xxx */
783
-	out += snprintf(buf + out, len - out,
768
+	out += scnprintf(buf + out, len - out,
784769 			"Dead Node: %d\n", dlm->reco.dead_node);
785770 
786771 	/* What about DLM_RECO_STATE_FINALIZE? */
....@@ -790,19 +775,19 @@
790775 		state = "INACTIVE";
791776 
792777 	/* Recovery Pid: xxxx  Master: xxx  State: xxxx */
793
-	out += snprintf(buf + out, len - out,
778
+	out += scnprintf(buf + out, len - out,
794779 			"Recovery Pid: %d  Master: %d  State: %s\n",
795780 			task_pid_nr(dlm->dlm_reco_thread_task),
796781 			dlm->reco.new_master, state);
797782 
798783 	/* Recovery Map: xx xx */
799
-	out += snprintf(buf + out, len - out, "Recovery Map: ");
784
+	out += scnprintf(buf + out, len - out, "Recovery Map: ");
800785 	out += stringify_nodemap(dlm->recovery_map, O2NM_MAX_NODES,
801786 				 buf + out, len - out);
802
-	out += snprintf(buf + out, len - out, "\n");
787
+	out += scnprintf(buf + out, len - out, "\n");
803788 
804789 	/* Recovery Node State: */
805
-	out += snprintf(buf + out, len - out, "Recovery Node State:\n");
790
+	out += scnprintf(buf + out, len - out, "Recovery Node State:\n");
806791 	list_for_each_entry(node, &dlm->reco.node_data, list) {
807792 		switch (node->state) {
808793 		case DLM_RECO_NODE_DATA_INIT:
....@@ -830,7 +815,7 @@
830815 			state = "BAD";
831816 			break;
832817 		}
833
-		out += snprintf(buf + out, len - out, "\t%u - %s\n",
818
+		out += scnprintf(buf + out, len - out, "\t%u - %s\n",
834819 				node->node_num, state);
835820 	}
836821 
....@@ -866,109 +851,42 @@
866851 /* end  - debug state funcs */
867852 
868853 /* files in subroot */
869
-int dlm_debug_init(struct dlm_ctxt *dlm)
854
+void dlm_debug_init(struct dlm_ctxt *dlm)
870855 {
871
-	struct dlm_debug_ctxt *dc = dlm->dlm_debug_ctxt;
872
-
873856 	/* for dumping dlm_ctxt */
874
-	dc->debug_state_dentry = debugfs_create_file(DLM_DEBUGFS_DLM_STATE,
875
-						     S_IFREG|S_IRUSR,
876
-						     dlm->dlm_debugfs_subroot,
877
-						     dlm, &debug_state_fops);
878
-	if (!dc->debug_state_dentry) {
879
-		mlog_errno(-ENOMEM);
880
-		goto bail;
881
-	}
857
+	debugfs_create_file(DLM_DEBUGFS_DLM_STATE, S_IFREG|S_IRUSR,
858
+			    dlm->dlm_debugfs_subroot, dlm, &debug_state_fops);
882859 
883860 	/* for dumping lockres */
884
-	dc->debug_lockres_dentry =
885
-			debugfs_create_file(DLM_DEBUGFS_LOCKING_STATE,
886
-					    S_IFREG|S_IRUSR,
887
-					    dlm->dlm_debugfs_subroot,
888
-					    dlm, &debug_lockres_fops);
889
-	if (!dc->debug_lockres_dentry) {
890
-		mlog_errno(-ENOMEM);
891
-		goto bail;
892
-	}
861
+	debugfs_create_file(DLM_DEBUGFS_LOCKING_STATE, S_IFREG|S_IRUSR,
862
+			    dlm->dlm_debugfs_subroot, dlm, &debug_lockres_fops);
893863 
894864 	/* for dumping mles */
895
-	dc->debug_mle_dentry = debugfs_create_file(DLM_DEBUGFS_MLE_STATE,
896
-						   S_IFREG|S_IRUSR,
897
-						   dlm->dlm_debugfs_subroot,
898
-						   dlm, &debug_mle_fops);
899
-	if (!dc->debug_mle_dentry) {
900
-		mlog_errno(-ENOMEM);
901
-		goto bail;
902
-	}
865
+	debugfs_create_file(DLM_DEBUGFS_MLE_STATE, S_IFREG|S_IRUSR,
866
+			    dlm->dlm_debugfs_subroot, dlm, &debug_mle_fops);
903867 
904868 	/* for dumping lockres on the purge list */
905
-	dc->debug_purgelist_dentry =
906
-			debugfs_create_file(DLM_DEBUGFS_PURGE_LIST,
907
-					    S_IFREG|S_IRUSR,
908
-					    dlm->dlm_debugfs_subroot,
909
-					    dlm, &debug_purgelist_fops);
910
-	if (!dc->debug_purgelist_dentry) {
911
-		mlog_errno(-ENOMEM);
912
-		goto bail;
913
-	}
914
-
915
-	return 0;
916
-
917
-bail:
918
-	return -ENOMEM;
919
-}
920
-
921
-void dlm_debug_shutdown(struct dlm_ctxt *dlm)
922
-{
923
-	struct dlm_debug_ctxt *dc = dlm->dlm_debug_ctxt;
924
-
925
-	if (dc) {
926
-		debugfs_remove(dc->debug_purgelist_dentry);
927
-		debugfs_remove(dc->debug_mle_dentry);
928
-		debugfs_remove(dc->debug_lockres_dentry);
929
-		debugfs_remove(dc->debug_state_dentry);
930
-		kfree(dc);
931
-		dc = NULL;
932
-	}
869
+	debugfs_create_file(DLM_DEBUGFS_PURGE_LIST, S_IFREG|S_IRUSR,
870
+			    dlm->dlm_debugfs_subroot, dlm,
871
+			    &debug_purgelist_fops);
933872 }
934873 
935874 /* subroot - domain dir */
936
-int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
875
+void dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
937876 {
938877 	dlm->dlm_debugfs_subroot = debugfs_create_dir(dlm->name,
939878 						      dlm_debugfs_root);
940
-	if (!dlm->dlm_debugfs_subroot) {
941
-		mlog_errno(-ENOMEM);
942
-		goto bail;
943
-	}
944
-
945
-	dlm->dlm_debug_ctxt = kzalloc(sizeof(struct dlm_debug_ctxt),
946
-				      GFP_KERNEL);
947
-	if (!dlm->dlm_debug_ctxt) {
948
-		mlog_errno(-ENOMEM);
949
-		goto bail;
950
-	}
951
-
952
-	return 0;
953
-bail:
954
-	dlm_destroy_debugfs_subroot(dlm);
955
-	return -ENOMEM;
956879 }
957880 
958881 void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
959882 {
960
-	debugfs_remove(dlm->dlm_debugfs_subroot);
883
+	debugfs_remove_recursive(dlm->dlm_debugfs_subroot);
961884 }
962885 
963886 /* debugfs root */
964
-int dlm_create_debugfs_root(void)
887
+void dlm_create_debugfs_root(void)
965888 {
966889 	dlm_debugfs_root = debugfs_create_dir(DLM_DEBUGFS_DIR, NULL);
967
-	if (!dlm_debugfs_root) {
968
-		mlog_errno(-ENOMEM);
969
-		return -ENOMEM;
970
-	}
971
-	return 0;
972890 }
973891 
974892 void dlm_destroy_debugfs_root(void)