diff options
| author | Johan Almbladh <johan.almbladh@anyfinetworks.com> | 2021-09-14 11:18:30 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-09-28 09:26:28 +0200 |
| commit | 4bc354138d553bc48dc1fb1e184d50a524e6c20f (patch) | |
| tree | 02e8fb835d869fc4c3b3354a36a52de6f85784a3 /lib | |
| parent | bpf/tests: Allow different number of runs per test case (diff) | |
| download | linux-4bc354138d553bc48dc1fb1e184d50a524e6c20f.tar.xz linux-4bc354138d553bc48dc1fb1e184d50a524e6c20f.zip | |
bpf/tests: Reduce memory footprint of test suite
The test suite used to call any fill_helper callbacks to generate eBPF
program data for all test cases at once. This caused ballooning memory
requirements as more extensive test cases were added. Now the each
fill_helper is called before the test is run and the allocated memory
released afterwards, before the next test case is processed.
Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210914091842.4186267-3-johan.almbladh@anyfinetworks.com
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_bpf.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c index a406cbb2e34d..c865fd584adb 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -8694,8 +8694,6 @@ static __init int find_test_index(const char *test_name) static __init int prepare_bpf_tests(void) { - int i; - if (test_id >= 0) { /* * if a test_id was specified, use test_range to @@ -8739,23 +8737,11 @@ static __init int prepare_bpf_tests(void) } } - for (i = 0; i < ARRAY_SIZE(tests); i++) { - if (tests[i].fill_helper && - tests[i].fill_helper(&tests[i]) < 0) - return -ENOMEM; - } - return 0; } static __init void destroy_bpf_tests(void) { - int i; - - for (i = 0; i < ARRAY_SIZE(tests); i++) { - if (tests[i].fill_helper) - kfree(tests[i].u.ptr.insns); - } } static bool exclude_test(int test_id) @@ -8960,7 +8946,19 @@ static __init int test_bpf(void) pr_info("#%d %s ", i, tests[i].descr); + if (tests[i].fill_helper && + tests[i].fill_helper(&tests[i]) < 0) { + pr_cont("FAIL to prog_fill\n"); + continue; + } + fp = generate_filter(i, &err); + + if (tests[i].fill_helper) { + kfree(tests[i].u.ptr.insns); + tests[i].u.ptr.insns = NULL; + } + if (fp == NULL) { if (err == 0) { pass_cnt++; |