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2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/fs/btrfs/inode-map.c
..
..
@@ -525,58 +525,3 @@
525
525
 	extent_changeset_free(data_reserved);
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 	return ret;
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 }
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-
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-int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid)
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-{
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-	struct btrfs_path *path;
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-	int ret;
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-	struct extent_buffer *l;
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-	struct btrfs_key search_key;
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-	struct btrfs_key found_key;
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-	int slot;
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-
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-	path = btrfs_alloc_path();
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-	if (!path)
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-		return -ENOMEM;
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-
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-	search_key.objectid = BTRFS_LAST_FREE_OBJECTID;
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-	search_key.type = -1;
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-	search_key.offset = (u64)-1;
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-	ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0);
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-	if (ret < 0)
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-		goto error;
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-	BUG_ON(ret == 0); /* Corruption */
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-	if (path->slots[0] > 0) {
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-		slot = path->slots[0] - 1;
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-		l = path->nodes[0];
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-		btrfs_item_key_to_cpu(l, &found_key, slot);
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-		*objectid = max_t(u64, found_key.objectid,
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-				  BTRFS_FIRST_FREE_OBJECTID - 1);
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-	} else {
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-		*objectid = BTRFS_FIRST_FREE_OBJECTID - 1;
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-	}
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-	ret = 0;
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-error:
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-	btrfs_free_path(path);
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-	return ret;
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-}
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-
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-int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid)
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-{
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-	int ret;
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-	mutex_lock(&root->objectid_mutex);
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-
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-	if (unlikely(root->highest_objectid >= BTRFS_LAST_FREE_OBJECTID)) {
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-		btrfs_warn(root->fs_info,
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-			   "the objectid of root %llu reaches its highest value",
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-			   root->root_key.objectid);
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-		ret = -ENOSPC;
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-		goto out;
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-	}
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-
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-	*objectid = ++root->highest_objectid;
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-	ret = 0;
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-out:
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-	mutex_unlock(&root->objectid_mutex);
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-	return ret;
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-}