add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/fs/ext4/block_validity.c
..
..
@@ -126,10 +126,13 @@
126
126
 {
127
127
 	struct rb_node *node;
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128
 	struct ext4_system_zone *entry;
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+	struct ext4_system_blocks *system_blks;
129
130
 	int first = 1;
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131
 
131
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 	printk(KERN_INFO "System zones: ");
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-	node = rb_first(&sbi->system_blks->root);
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+	rcu_read_lock();
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+	system_blks = rcu_dereference(sbi->s_system_blks);
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+	node = rb_first(&system_blks->root);
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136
 	while (node) {
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137
 		entry = rb_entry(node, struct ext4_system_zone, node);
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138
 		printk(KERN_CONT "%s%llu-%llu", first ? "" : ", ",
..
..
@@ -137,47 +140,8 @@
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 		first = 0;
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 		node = rb_next(node);
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 	}
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+	rcu_read_unlock();
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 	printk(KERN_CONT "\n");
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-}
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-
143
-/*
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- * Returns 1 if the passed-in block region (start_blk,
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- * start_blk+count) is valid; 0 if some part of the block region
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- * overlaps with filesystem metadata blocks.
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- */
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-static int ext4_data_block_valid_rcu(struct ext4_sb_info *sbi,
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-				     struct ext4_system_blocks *system_blks,
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-				     ext4_fsblk_t start_blk,
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-				     unsigned int count, ino_t ino)
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-{
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-	struct ext4_system_zone *entry;
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-	struct rb_node *n;
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-
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-	if ((start_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
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-	    (start_blk + count < start_blk) ||
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-	    (start_blk + count > ext4_blocks_count(sbi->s_es))) {
159
-		sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
160
-		return 0;
161
-	}
162
-
163
-	if (system_blks == NULL)
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-		return 1;
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-
166
-	n = system_blks->root.rb_node;
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-	while (n) {
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-		entry = rb_entry(n, struct ext4_system_zone, node);
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-		if (start_blk + count - 1 < entry->start_blk)
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-			n = n->rb_left;
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-		else if (start_blk >= (entry->start_blk + entry->count))
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-			n = n->rb_right;
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-		else {
174
-			if (entry->ino == ino)
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-				return 1;
176
-			sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
177
-			return 0;
178
-		}
179
-	}
180
-	return 1;
181
145
 }
182
146
 
183
147
 static int ext4_protect_reserved_inode(struct super_block *sb,
..
..
@@ -212,10 +176,12 @@
212
176
 			err = add_system_zone(system_blks, map.m_pblk, n, ino);
213
177
 			if (err < 0) {
214
178
 				if (err == -EFSCORRUPTED) {
215
-					ext4_error(sb,
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-					   "blocks %llu-%llu from inode %u "
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-					   "overlap system zone", map.m_pblk,
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-					   map.m_pblk + map.m_len - 1, ino);
179
+					__ext4_error(sb, __func__, __LINE__,
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+						     -err, map.m_pblk,
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+						     "blocks %llu-%llu from inode %u overlap system zone",
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+						     map.m_pblk,
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+						     map.m_pblk + map.m_len - 1,
184
+						     ino);
219
185
 				}
220
186
 				break;
221
187
 			}
..
..
@@ -251,7 +217,6 @@
251
217
 	struct ext4_system_blocks *system_blks;
252
218
 	struct ext4_group_desc *gdp;
253
219
 	ext4_group_t i;
254
-	int flex_size = ext4_flex_bg_size(sbi);
255
220
 	int ret;
256
221
 
257
222
 	system_blks = kzalloc(sizeof(*system_blks), GFP_KERNEL);
..
..
@@ -259,11 +224,16 @@
259
224
 		return -ENOMEM;
260
225
 
261
226
 	for (i=0; i < ngroups; i++) {
262
-		if (ext4_bg_has_super(sb, i) &&
263
-		    ((i < 5) || ((i % flex_size) == 0)))
264
-			add_system_zone(system_blks,
227
+		unsigned int meta_blks = ext4_num_base_meta_blocks(sb, i);
228
+
229
+		cond_resched();
230
+		if (meta_blks != 0) {
231
+			ret = add_system_zone(system_blks,
265
232
 					ext4_group_first_block_no(sb, i),
266
-					ext4_bg_num_gdb(sb, i) + 1, 0);
233
+					meta_blks, 0);
234
+			if (ret)
235
+				goto err;
236
+		}
267
237
 		gdp = ext4_get_group_desc(sb, i, NULL);
268
238
 		ret = add_system_zone(system_blks,
269
239
 				ext4_block_bitmap(sb, gdp), 1, 0);
..
..
@@ -291,7 +261,7 @@
291
261
 	 * with ext4_data_block_valid() accessing the rbtree at the same
292
262
 	 * time.
293
263
 	 */
294
-	rcu_assign_pointer(sbi->system_blks, system_blks);
264
+	rcu_assign_pointer(sbi->s_system_blks, system_blks);
295
265
 
296
266
 	if (test_opt(sb, DEBUG))
297
267
 		debug_print_tree(sbi);
..
..
@@ -316,19 +286,27 @@
316
286
 {
317
287
 	struct ext4_system_blocks *system_blks;
318
288
 
319
-	system_blks = rcu_dereference_protected(EXT4_SB(sb)->system_blks,
289
+	system_blks = rcu_dereference_protected(EXT4_SB(sb)->s_system_blks,
320
290
 					lockdep_is_held(&sb->s_umount));
321
-	rcu_assign_pointer(EXT4_SB(sb)->system_blks, NULL);
291
+	rcu_assign_pointer(EXT4_SB(sb)->s_system_blks, NULL);
322
292
 
323
293
 	if (system_blks)
324
294
 		call_rcu(&system_blks->rcu, ext4_destroy_system_zone);
325
295
 }
326
296
 
327
-int ext4_inode_block_valid(struct inode *inode, ext4_fsblk_t start_blk,
328
-			  unsigned int count)
297
+int ext4_sb_block_valid(struct super_block *sb, struct inode *inode,
298
+				ext4_fsblk_t start_blk, unsigned int count)
329
299
 {
300
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
330
301
 	struct ext4_system_blocks *system_blks;
331
-	int ret;
302
+	struct ext4_system_zone *entry;
303
+	struct rb_node *n;
304
+	int ret = 1;
305
+
306
+	if ((start_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
307
+	    (start_blk + count < start_blk) ||
308
+	    (start_blk + count > ext4_blocks_count(sbi->s_es)))
309
+		return 0;
332
310
 
333
311
 	/*
334
312
 	 * Lock the system zone to prevent it being released concurrently
..
..
@@ -336,17 +314,43 @@
336
314
 	 * mount option.
337
315
 	 */
338
316
 	rcu_read_lock();
339
-	system_blks = rcu_dereference(EXT4_SB(inode->i_sb)->system_blks);
340
-	ret = ext4_data_block_valid_rcu(EXT4_SB(inode->i_sb), system_blks,
341
-					start_blk, count, inode->i_ino);
317
+	system_blks = rcu_dereference(sbi->s_system_blks);
318
+	if (system_blks == NULL)
319
+		goto out_rcu;
320
+
321
+	n = system_blks->root.rb_node;
322
+	while (n) {
323
+		entry = rb_entry(n, struct ext4_system_zone, node);
324
+		if (start_blk + count - 1 < entry->start_blk)
325
+			n = n->rb_left;
326
+		else if (start_blk >= (entry->start_blk + entry->count))
327
+			n = n->rb_right;
328
+		else {
329
+			ret = 0;
330
+			if (inode)
331
+				ret = (entry->ino == inode->i_ino);
332
+			break;
333
+		}
334
+	}
335
+out_rcu:
342
336
 	rcu_read_unlock();
343
337
 	return ret;
338
+}
339
+
340
+/*
341
+ * Returns 1 if the passed-in block region (start_blk,
342
+ * start_blk+count) is valid; 0 if some part of the block region
343
+ * overlaps with some other filesystem metadata blocks.
344
+ */
345
+int ext4_inode_block_valid(struct inode *inode, ext4_fsblk_t start_blk,
346
+			  unsigned int count)
347
+{
348
+	return ext4_sb_block_valid(inode->i_sb, inode, start_blk, count);
344
349
 }
345
350
 
346
351
 int ext4_check_blockref(const char *function, unsigned int line,
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352
 			struct inode *inode, __le32 *p, unsigned int max)
348
353
 {
349
-	struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
350
354
 	__le32 *bref = p;
351
355
 	unsigned int blk;
352
356
 
..
..
@@ -359,7 +363,6 @@
359
363
 		blk = le32_to_cpu(*bref++);
360
364
 		if (blk &&
361
365
 		    unlikely(!ext4_inode_block_valid(inode, blk, 1))) {
362
-			es->s_last_error_block = cpu_to_le64(blk);
363
366
 			ext4_error_inode(inode, function, line, blk,
364
367
 					 "invalid block");
365
368
 			return -EFSCORRUPTED;