diff mbox series

[v3,bpf-next,11/13] selftests/bpf: Improve test coverage of bpf_mem_alloc.

Message ID 20230628015634.33193-12-alexei.starovoitov@gmail.com (mailing list archive)
State Superseded
Headers show
Series bpf: Introduce bpf_mem_cache_free_rcu(). | expand

Commit Message

Alexei Starovoitov June 28, 2023, 1:56 a.m. UTC 
From: Alexei Starovoitov <ast@kernel.org>

bpf_obj_new() calls bpf_mem_alloc(), but doing alloc/free of 8 elements
is not triggering watermark conditions in bpf_mem_alloc.
Increase to 200 elements to make sure alloc_bulk/free_bulk is exercised.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
 tools/testing/selftests/bpf/progs/linked_list.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Hou Tao June 28, 2023, 8:14 a.m. UTC | #1 
On 6/28/2023 9:56 AM, Alexei Starovoitov wrote:
> From: Alexei Starovoitov <ast@kernel.org>
>
> bpf_obj_new() calls bpf_mem_alloc(), but doing alloc/free of 8 elements
> is not triggering watermark conditions in bpf_mem_alloc.
> Increase to 200 elements to make sure alloc_bulk/free_bulk is exercised.
>
> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Hou Tao <houtao1@huawei.com>
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/progs/linked_list.c b/tools/testing/selftests/bpf/progs/linked_list.c
index 57440a554304..84d1777a9e6c 100644
--- a/tools/testing/selftests/bpf/progs/linked_list.c
+++ b/tools/testing/selftests/bpf/progs/linked_list.c
@@ -96,7 +96,7 @@  static __always_inline
 int list_push_pop_multiple(struct bpf_spin_lock *lock, struct bpf_list_head *head, bool leave_in_map)
 {
 	struct bpf_list_node *n;
-	struct foo *f[8], *pf;
+	struct foo *f[200], *pf;
 	int i;
 
 	/* Loop following this check adds nodes 2-at-a-time in order to