selftests/bpf: Fixes for test_maps test

BPF CI has failed 3 times in the last 24 hours. Add retry for ENOMEM.
It's similar to the optimization plan:
commit 2f553b032c ("selftsets/bpf: Retry map update for non-preallocated per-cpu map")

Failed CI:
https://github.com/kernel-patches/bpf/actions/runs/13549227497/job/37868926343
https://github.com/kernel-patches/bpf/actions/runs/13548089029/job/37865812030
https://github.com/kernel-patches/bpf/actions/runs/13553536268/job/37883329296

selftests/bpf: Fixes for test_maps test
Fork 100 tasks to 'test_update_delete'
Fork 100 tasks to 'test_update_delete'
Fork 100 tasks to 'test_update_delete'
Fork 100 tasks to 'test_update_delete'
......
test_task_storage_map_stress_lookup:PASS
test_maps: OK, 0 SKIPPED

Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Link: https://lore.kernel.org/r/20250227142646.59711-4-jiayuan.chen@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiayuan Chen 2025-02-27 22:26:46 +08:00 committed by Alexei Starovoitov
parent 93a279b65a
commit 7f260af1f2

View File

@ -1396,9 +1396,10 @@ static void test_map_stress(void)
#define MAX_DELAY_US 50000
#define MIN_DELAY_RANGE_US 5000
static bool retry_for_again_or_busy(int err)
static bool can_retry(int err)
{
return (err == EAGAIN || err == EBUSY);
return (err == EAGAIN || err == EBUSY ||
(err == ENOMEM && map_opts.map_flags == BPF_F_NO_PREALLOC));
}
int map_update_retriable(int map_fd, const void *key, const void *value, int flags, int attempts,
@ -1451,12 +1452,12 @@ static void test_update_delete(unsigned int fn, void *data)
if (do_update) {
err = map_update_retriable(fd, &key, &value, BPF_NOEXIST, MAP_RETRIES,
retry_for_again_or_busy);
can_retry);
if (err)
printf("error %d %d\n", err, errno);
assert(err == 0);
err = map_update_retriable(fd, &key, &value, BPF_EXIST, MAP_RETRIES,
retry_for_again_or_busy);
can_retry);
if (err)
printf("error %d %d\n", err, errno);
assert(err == 0);