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[bpf-next,2/2] selftests/bpf: Add a test for batch operation flag

Message ID 20241110112905.64616-3-dev@der-flo.net (mailing list archive)
State Changes Requested
Delegated to: BPF
Headers show
Series bpf: Add flag for batch operation | expand

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netdev/series_format success Posting correctly formatted
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netdev/check_selftest success No net selftest shell script
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netdev/checkpatch warning CHECK: Alignment should match open parenthesis CHECK: spaces preferred around that '-' (ctx:VxV) WARNING: line length of 84 exceeds 80 columns
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Commit Message

Florian Lehner Nov. 10, 2024, 11:29 a.m. UTC 
Add a test that verifies the batch operation continues if
BPF_F_BATCH_IGNORE_MISSING_KEY is set.

Signed-off-by: Florian Lehner <dev@der-flo.net>
---
 .../bpf/map_tests/htab_map_batch_ops.c        | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c
index 5da493b94ae2..76df196f5223 100644
--- a/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c
+++ b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c
@@ -136,7 +136,25 @@  void __test_map_lookup_and_delete_batch(bool is_pcpu)
 	err = bpf_map_get_next_key(map_fd, NULL, &key);
 	CHECK(!err, "bpf_map_get_next_key()", "error: %s\n", strerror(errno));
 
-	/* test 4: lookup/delete in a loop with various steps. */
+	/* test 4: batch delete with missing key */
+	map_batch_update(map_fd, max_entries, keys, values, is_pcpu);
+
+	key = 2;
+	err = bpf_map_delete_elem(map_fd, &key);
+	CHECK(err, "bpf_map_delete_elem()", "error: %s\n", strerror(errno));
+
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, ignore_opts,
+		.elem_flags = 0,
+		.flags = BPF_F_BATCH_IGNORE_MISSING_KEY,
+	);
+
+	err = bpf_map_delete_batch(map_fd, keys, &count,
+	       &ignore_opts);
+	CHECK(err, "batch delete with missing key", "error: %s\n", strerror(errno));
+	CHECK(count != max_entries-1, "count != max_entries-1",
+	      "count = %u, max_entries = %u\n", count, max_entries);
+
+	/* test 5: lookup/delete in a loop with various steps. */
 	total_success = 0;
 	for (step = 1; step < max_entries; step++) {
 		map_batch_update(map_fd, max_entries, keys, values, is_pcpu);