add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/btrfs/relocation.c
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..
@@ -1895,7 +1895,7 @@
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 	list_splice(&reloc_roots, &rc->reloc_roots);
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 	if (!err)
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-		btrfs_commit_transaction(trans);
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+		err = btrfs_commit_transaction(trans);
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 	else
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 		btrfs_end_transaction(trans);
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 	return err;
..
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@@ -3270,8 +3270,12 @@
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 		 */
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 		return PTR_ERR(trans);
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 	}
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-	btrfs_commit_transaction(trans);
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-	return 0;
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+
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+	ret = btrfs_commit_transaction(trans);
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+	if (ret)
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+		unset_reloc_control(rc);
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+
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+	return ret;
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 }
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 static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
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@@ -3443,7 +3447,9 @@
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 		err = PTR_ERR(trans);
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 		goto out_free;
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 	}
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-	btrfs_commit_transaction(trans);
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+	ret = btrfs_commit_transaction(trans);
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+	if (ret && !err)
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+		err = ret;
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 out_free:
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 	ret = clean_dirty_subvols(rc);
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 	if (ret < 0 && !err)