chown, chgrp: judge --from on a symlink's target under -R -H

[abendrothj]

With -R -H, a symlink met in the tree was stat'd itself but the change went to the file it points to, so --from was judged on the link's owner, and -v reported the link's owner. GNU 9.12 judges and reports the target.

Under -R -H the target is now stat'd for --from and the report, and held for the change. A dangling link fails as before. Test: test_chown_from_judges_symlink_target_under_big_h.

Based on #15124.

Part of #15027

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[codspeed]

Merging this PR will degrade performance by 4.32%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 9 improved benchmarks
❌ 16 regressed benchmarks
✅ 374 untouched benchmarks
⏩ 54 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	split_lines	8.5 ms	11.1 ms	-23.5%
❌	Simulation	split_numeric_suffix	8.7 ms	11.4 ms	-23.08%
❌	Simulation	false_consecutive_calls	294.7 ns	350.2 ns	-15.86%
❌	Simulation	check_sorted_utf8_locale	422.9 ms	492.2 ms	-14.09%
❌	Simulation	five_38_bit_primes	1.5 s	1.7 s	-13%
❌	Simulation	sort_numeric_utf8_locale	36.1 ms	40.7 ms	-11.41%
❌	Simulation	merge_single_file_utf8_locale	119.3 ms	133.3 ms	-10.5%
❌	Simulation	tsort_complex_dag[50000]	87.6 ms	97.2 ms	-9.79%
❌	Simulation	tsort_tree_dag[(10, 3)]	36.5 ms	39.4 ms	-7.34%
❌	Simulation	tsort_wide_dag[100000]	157.6 ms	167 ms	-5.64%
❌	Simulation	merge_pre_sorted_files_utf8_locale	237.9 ms	252 ms	-5.6%
❌	Simulation	merge_pre_sorted_files	238.7 ms	252.6 ms	-5.51%
❌	Simulation	tsort_linear_chain[1000000]	1.9 s	2 s	-4.75%
❌	Simulation	sort_german_de_locale	282.1 ms	295 ms	-4.4%
❌	Simulation	sort_case_sensitive[500000]	321 ms	334.9 ms	-4.14%
❌	Simulation	sort_spill_to_tmp_files_utf8_locale	321 ms	332.2 ms	-3.35%
⚡	Simulation	join_french_locale	26.7 ms	24 ms	+11.09%
⚡	Simulation	join_full_match	26.7 ms	24 ms	+11.07%
⚡	Simulation	join_partial_overlap	22.1 ms	20.4 ms	+8.36%
⚡	Simulation	three_39_bit_primes	901.6 ms	833.5 ms	+8.17%
...	...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing abendrothj:chown-from-symlink-target (2b8bc49) with main (fe26d56)}

Footnotes

1. 54 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩