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selftests/bpf: Add tests for ring__map_fd

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Add tests for the new API ring__map_fd.

Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230925215045.2375758-13-martin.kelly@crowdstrike.com
This commit is contained in:
Martin Kelly
2023-09-25 14:50:43 -07:00
committed by Andrii Nakryiko
parent ae76939037
commit 6e38ba5291
1 changed files with 4 additions and 0 deletions
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4
tools/testing/selftests/bpf/prog_tests/ringbuf.c
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@ -92,6 +92,7 @@ static void ringbuf_subtest(void)
int page_size = getpagesize();
void *mmap_ptr, *tmp_ptr;
struct ring *ring;
int map_fd;
unsigned long avail_data, ring_size, cons_pos, prod_pos;
skel = test_ringbuf_lskel__open();
@ -168,6 +169,9 @@ static void ringbuf_subtest(void)
if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0"))
goto cleanup;
map_fd = ring__map_fd(ring);
ASSERT_EQ(map_fd, skel->maps.ringbuf.map_fd, "ring_map_fd");
/* 2 submitted + 1 discarded records */
CHECK(skel->bss->avail_data != 3 * rec_sz,
"err_avail_size", "exp %ld, got %ld\n",