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btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling
commit 8289ed9f93
upstream.
I hit the BUG_ON() with generic/475 test case, and to my surprise, all
callers of btrfs_del_root_ref() are already aborting transaction, thus
there is not need for such BUG_ON(), just go to @out label and caller
will properly handle the error.
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 1 deletions
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@ -371,7 +371,8 @@ int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
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key.offset = ref_id;
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again:
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ret = btrfs_search_slot(trans, tree_root, &key, path, -1, 1);
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BUG_ON(ret < 0);
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if (ret < 0)
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goto out;
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if (ret == 0) {
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leaf = path->nodes[0];
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ref = btrfs_item_ptr(leaf, path->slots[0],
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