linux-stable/tools/testing
Stanislav Fomichev 33b57e0cc7 bpf: Increase supported cgroup storage value size
Current max cgroup storage value size is 4k (PAGE_SIZE). The other local
storages accept up to 64k (BPF_LOCAL_STORAGE_MAX_VALUE_SIZE). Let's align
max cgroup value size with the other storages.

For percpu, the max is 32k (PCPU_MIN_UNIT_SIZE) because percpu
allocator is not happy about larger values.

netcnt test is extended to exercise those maximum values
(non-percpu max size is close to, but not real max).

v4:
* remove inner union (Andrii Nakryiko)
* keep net_cnt on the stack (Andrii Nakryiko)

v3:
* refine SIZEOF_BPF_LOCAL_STORAGE_ELEM comment (Yonghong Song)
* anonymous struct in percpu_net_cnt & net_cnt (Yonghong Song)
* reorder free (Yonghong Song)

v2:
* cap max_value_size instead of BUILD_BUG_ON (Martin KaFai Lau)

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210727222335.4029096-1-sdf@google.com
2021-07-27 15:59:29 -07:00
..
fault-injection
ktest bootconfig/tracing/ktest: Add ktest examples of testing bootconfig 2021-06-24 15:34:33 -04:00
kunit kunit: tool: Support skipped tests in kunit_tool 2021-06-25 11:31:03 -06:00
nvdimm ACPI: NFIT: Fix support for variable 'SPA' structure size 2021-05-12 12:38:25 -07:00
radix-tree idr test suite: Improve reporting from idr_find_test_1 2021-04-01 07:50:42 -04:00
scatterlist tools/testing/scatterlist: Fix overflow of max segment size 2021-01-28 15:17:39 -04:00
selftests bpf: Increase supported cgroup storage value size 2021-07-27 15:59:29 -07:00
vsock vsock_test: add SOCK_SEQPACKET tests 2021-06-11 13:32:47 -07:00