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2023-12-06 08f87f769b595151be1afeff53e144f543faa614 
 kernel/fs/ocfs2/super.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  *
....@@ -6,21 +7,6 @@
67  * load/unload driver, mount/dismount volumes
78  *
89  * Copyright (C) 2002, 2004 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.
2410  */
2511 
2612 #include <linux/module.h>
....@@ -85,6 +71,7 @@
8571 
8672 MODULE_AUTHOR("Oracle");
8773 MODULE_LICENSE("GPL");
74
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
8875 MODULE_DESCRIPTION("OCFS2 cluster file system");
8976 
9077 struct mount_options
....@@ -134,7 +121,7 @@
134121 			    int block,
135122 			    int sect_size);
136123 static struct inode *ocfs2_alloc_inode(struct super_block *sb);
137
-static void ocfs2_destroy_inode(struct inode *inode);
124
+static void ocfs2_free_inode(struct inode *inode);
138125 static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend);
139126 static int ocfs2_enable_quotas(struct ocfs2_super *osb);
140127 static void ocfs2_disable_quotas(struct ocfs2_super *osb);
....@@ -147,7 +134,7 @@
147134 static const struct super_operations ocfs2_sops = {
148135 	.statfs		= ocfs2_statfs,
149136 	.alloc_inode	= ocfs2_alloc_inode,
150
-	.destroy_inode	= ocfs2_destroy_inode,
137
+	.free_inode	= ocfs2_free_inode,
151138 	.drop_inode	= ocfs2_drop_inode,
152139 	.evict_inode	= ocfs2_evict_inode,
153140 	.sync_fs	= ocfs2_sync_fs,
....@@ -234,31 +221,31 @@
234221 	int i, out = 0;
235222 	unsigned long flags;
236223 
237
-	out += snprintf(buf + out, len - out,
224
+	out += scnprintf(buf + out, len - out,
238225 			"%10s => Id: %-s  Uuid: %-s  Gen: 0x%X  Label: %-s\n",
239226 			"Device", osb->dev_str, osb->uuid_str,
240227 			osb->fs_generation, osb->vol_label);
241228 
242
-	out += snprintf(buf + out, len - out,
229
+	out += scnprintf(buf + out, len - out,
243230 			"%10s => State: %d  Flags: 0x%lX\n", "Volume",
244231 			atomic_read(&osb->vol_state), osb->osb_flags);
245232 
246
-	out += snprintf(buf + out, len - out,
233
+	out += scnprintf(buf + out, len - out,
247234 			"%10s => Block: %lu  Cluster: %d\n", "Sizes",
248235 			osb->sb->s_blocksize, osb->s_clustersize);
249236 
250
-	out += snprintf(buf + out, len - out,
237
+	out += scnprintf(buf + out, len - out,
251238 			"%10s => Compat: 0x%X  Incompat: 0x%X  "
252239 			"ROcompat: 0x%X\n",
253240 			"Features", osb->s_feature_compat,
254241 			osb->s_feature_incompat, osb->s_feature_ro_compat);
255242 
256
-	out += snprintf(buf + out, len - out,
243
+	out += scnprintf(buf + out, len - out,
257244 			"%10s => Opts: 0x%lX  AtimeQuanta: %u\n", "Mount",
258245 			osb->s_mount_opt, osb->s_atime_quantum);
259246 
260247 	if (cconn) {
261
-		out += snprintf(buf + out, len - out,
248
+		out += scnprintf(buf + out, len - out,
262249 				"%10s => Stack: %s  Name: %*s  "
263250 				"Version: %d.%d\n", "Cluster",
264251 				(*osb->osb_cluster_stack == '\0' ?
....@@ -269,7 +256,7 @@
269256 	}
270257 
271258 	spin_lock_irqsave(&osb->dc_task_lock, flags);
272
-	out += snprintf(buf + out, len - out,
259
+	out += scnprintf(buf + out, len - out,
273260 			"%10s => Pid: %d  Count: %lu  WakeSeq: %lu  "
274261 			"WorkSeq: %lu\n", "DownCnvt",
275262 			(osb->dc_task ?  task_pid_nr(osb->dc_task) : -1),
....@@ -278,32 +265,32 @@
278265 	spin_unlock_irqrestore(&osb->dc_task_lock, flags);
279266 
280267 	spin_lock(&osb->osb_lock);
281
-	out += snprintf(buf + out, len - out, "%10s => Pid: %d  Nodes:",
268
+	out += scnprintf(buf + out, len - out, "%10s => Pid: %d  Nodes:",
282269 			"Recovery",
283270 			(osb->recovery_thread_task ?
284271 			 task_pid_nr(osb->recovery_thread_task) : -1));
285272 	if (rm->rm_used == 0)
286
-		out += snprintf(buf + out, len - out, " None\n");
273
+		out += scnprintf(buf + out, len - out, " None\n");
287274 	else {
288275 		for (i = 0; i < rm->rm_used; i++)
289
-			out += snprintf(buf + out, len - out, " %d",
276
+			out += scnprintf(buf + out, len - out, " %d",
290277 					rm->rm_entries[i]);
291
-		out += snprintf(buf + out, len - out, "\n");
278
+		out += scnprintf(buf + out, len - out, "\n");
292279 	}
293280 	spin_unlock(&osb->osb_lock);
294281 
295
-	out += snprintf(buf + out, len - out,
282
+	out += scnprintf(buf + out, len - out,
296283 			"%10s => Pid: %d  Interval: %lu\n", "Commit",
297284 			(osb->commit_task ? task_pid_nr(osb->commit_task) : -1),
298285 			osb->osb_commit_interval);
299286 
300
-	out += snprintf(buf + out, len - out,
287
+	out += scnprintf(buf + out, len - out,
301288 			"%10s => State: %d  TxnId: %lu  NumTxns: %d\n",
302289 			"Journal", osb->journal->j_state,
303290 			osb->journal->j_trans_id,
304291 			atomic_read(&osb->journal->j_num_trans));
305292 
306
-	out += snprintf(buf + out, len - out,
293
+	out += scnprintf(buf + out, len - out,
307294 			"%10s => GlobalAllocs: %d  LocalAllocs: %d  "
308295 			"SubAllocs: %d  LAWinMoves: %d  SAExtends: %d\n",
309296 			"Stats",
....@@ -313,7 +300,7 @@
313300 			atomic_read(&osb->alloc_stats.moves),
314301 			atomic_read(&osb->alloc_stats.bg_extends));
315302 
316
-	out += snprintf(buf + out, len - out,
303
+	out += scnprintf(buf + out, len - out,
317304 			"%10s => State: %u  Descriptor: %llu  Size: %u bits  "
318305 			"Default: %u bits\n",
319306 			"LocalAlloc", osb->local_alloc_state,
....@@ -321,7 +308,7 @@
321308 			osb->local_alloc_bits, osb->local_alloc_default_bits);
322309 
323310 	spin_lock(&osb->osb_lock);
324
-	out += snprintf(buf + out, len - out,
311
+	out += scnprintf(buf + out, len - out,
325312 			"%10s => InodeSlot: %d  StolenInodes: %d, "
326313 			"MetaSlot: %d  StolenMeta: %d\n", "Steal",
327314 			osb->s_inode_steal_slot,
....@@ -330,20 +317,20 @@
330317 			atomic_read(&osb->s_num_meta_stolen));
331318 	spin_unlock(&osb->osb_lock);
332319 
333
-	out += snprintf(buf + out, len - out, "OrphanScan => ");
334
-	out += snprintf(buf + out, len - out, "Local: %u  Global: %u ",
320
+	out += scnprintf(buf + out, len - out, "OrphanScan => ");
321
+	out += scnprintf(buf + out, len - out, "Local: %u  Global: %u ",
335322 			os->os_count, os->os_seqno);
336
-	out += snprintf(buf + out, len - out, " Last Scan: ");
323
+	out += scnprintf(buf + out, len - out, " Last Scan: ");
337324 	if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE)
338
-		out += snprintf(buf + out, len - out, "Disabled\n");
325
+		out += scnprintf(buf + out, len - out, "Disabled\n");
339326 	else
340
-		out += snprintf(buf + out, len - out, "%lu seconds ago\n",
327
+		out += scnprintf(buf + out, len - out, "%lu seconds ago\n",
341328 				(unsigned long)(ktime_get_seconds() - os->os_scantime));
342329 
343
-	out += snprintf(buf + out, len - out, "%10s => %3s  %10s\n",
330
+	out += scnprintf(buf + out, len - out, "%10s => %3s  %10s\n",
344331 			"Slots", "Num", "RecoGen");
345332 	for (i = 0; i < osb->max_slots; ++i) {
346
-		out += snprintf(buf + out, len - out,
333
+		out += scnprintf(buf + out, len - out,
347334 				"%10s  %c %3d  %10d\n",
348335 				" ",
349336 				(i == osb->slot_num ? '*' : ' '),
....@@ -575,15 +562,9 @@
575562 	return &oi->vfs_inode;
576563 }
577564 
578
-static void ocfs2_i_callback(struct rcu_head *head)
565
+static void ocfs2_free_inode(struct inode *inode)
579566 {
580
-	struct inode *inode = container_of(head, struct inode, i_rcu);
581567 	kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode));
582
-}
583
-
584
-static void ocfs2_destroy_inode(struct inode *inode)
585
-{
586
-	call_rcu(&inode->i_rcu, ocfs2_i_callback);
587568 }
588569 
589570 static unsigned long long ocfs2_max_file_offset(unsigned int bbits,
....@@ -600,7 +581,6 @@
600581 	 */
601582 
602583 #if BITS_PER_LONG == 32
603
-# if defined(CONFIG_LBDAF)
604584 	BUILD_BUG_ON(sizeof(sector_t) != 8);
605585 	/*
606586 	 * We might be limited by page cache size.
....@@ -614,15 +594,6 @@
614594 		 */
615595 		bitshift = 31;
616596 	}
617
-# else
618
-	/*
619
-	 * We are limited by the size of sector_t. Use block size, as
620
-	 * that's what we expose to the VFS.
621
-	 */
622
-	bytes = 1 << bbits;
623
-	trim = 1;
624
-	bitshift = 31;
625
-# endif
626597 #endif
627598 
628599 	/*
....@@ -956,8 +927,8 @@
956927 			status = -ENOENT;
957928 			goto out_quota_off;
958929 		}
959
-		status = dquot_enable(inode[type], type, QFMT_OCFS2,
960
-				      DQUOT_USAGE_ENABLED);
930
+		status = dquot_load_quota_inode(inode[type], type, QFMT_OCFS2,
931
+						DQUOT_USAGE_ENABLED);
961932 		if (status < 0)
962933 			goto out_quota_off;
963934 	}
....@@ -1109,33 +1080,13 @@
11091080 
11101081 	osb->osb_debug_root = debugfs_create_dir(osb->uuid_str,
11111082 						 ocfs2_debugfs_root);
1112
-	if (!osb->osb_debug_root) {
1113
-		status = -EINVAL;
1114
-		mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n");
1115
-		goto read_super_error;
1116
-	}
11171083 
1118
-	osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR,
1119
-					    osb->osb_debug_root,
1120
-					    osb,
1121
-					    &ocfs2_osb_debug_fops);
1122
-	if (!osb->osb_ctxt) {
1123
-		status = -EINVAL;
1124
-		mlog_errno(status);
1125
-		goto read_super_error;
1126
-	}
1084
+	debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root,
1085
+			    osb, &ocfs2_osb_debug_fops);
11271086 
1128
-	if (ocfs2_meta_ecc(osb)) {
1129
-		status = ocfs2_blockcheck_stats_debugfs_install(
1130
-						&osb->osb_ecc_stats,
1131
-						osb->osb_debug_root);
1132
-		if (status) {
1133
-			mlog(ML_ERROR,
1134
-			     "Unable to create blockcheck statistics "
1135
-			     "files\n");
1136
-			goto read_super_error;
1137
-		}
1138
-	}
1087
+	if (ocfs2_meta_ecc(osb))
1088
+		ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats,
1089
+							osb->osb_debug_root);
11391090 
11401091 	status = ocfs2_mount_volume(sb);
11411092 	if (status < 0)
....@@ -1149,17 +1100,6 @@
11491100 		mlog_errno(status);
11501101 		goto read_super_error;
11511102 	}
1152
-
1153
-	root = d_make_root(inode);
1154
-	if (!root) {
1155
-		status = -ENOMEM;
1156
-		mlog_errno(status);
1157
-		goto read_super_error;
1158
-	}
1159
-
1160
-	sb->s_root = root;
1161
-
1162
-	ocfs2_complete_mount_recovery(osb);
11631103 
11641104 	osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL,
11651105 						&ocfs2_kset->kobj);
....@@ -1177,6 +1117,17 @@
11771117 			"/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id);
11781118 		goto read_super_error;
11791119 	}
1120
+
1121
+	root = d_make_root(inode);
1122
+	if (!root) {
1123
+		status = -ENOMEM;
1124
+		mlog_errno(status);
1125
+		goto read_super_error;
1126
+	}
1127
+
1128
+	sb->s_root = root;
1129
+
1130
+	ocfs2_complete_mount_recovery(osb);
11801131 
11811132 	if (ocfs2_mount_local(osb))
11821133 		snprintf(nodestr, sizeof(nodestr), "local");
....@@ -1622,11 +1573,6 @@
16221573 		goto out2;
16231574 
16241575 	ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL);
1625
-	if (!ocfs2_debugfs_root) {
1626
-		status = -ENOMEM;
1627
-		mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n");
1628
-		goto out3;
1629
-	}
16301576 
16311577 	ocfs2_set_locking_protocol();
16321578 
....@@ -1848,6 +1794,8 @@
18481794 	if (ocfs2_is_hard_readonly(osb))
18491795 		goto leave;
18501796 
1797
+	mutex_init(&osb->obs_trim_fs_mutex);
1798
+
18511799 	status = ocfs2_dlm_init(osb);
18521800 	if (status < 0) {
18531801 		mlog_errno(status);
....@@ -1913,8 +1861,6 @@
19131861 
19141862 	kset_unregister(osb->osb_dev_kset);
19151863 
1916
-	debugfs_remove(osb->osb_ctxt);
1917
-
19181864 	/* Orphan scan should be stopped as early as possible */
19191865 	ocfs2_orphan_scan_stop(osb);
19201866 
....@@ -1970,7 +1916,7 @@
19701916 		ocfs2_dlm_shutdown(osb, hangup_needed);
19711917 
19721918 	ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats);
1973
-	debugfs_remove(osb->osb_debug_root);
1919
+	debugfs_remove_recursive(osb->osb_debug_root);
19741920 
19751921 	if (hangup_needed)
19761922 		ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str));