diff options
| author | Tony Lindgren | 2017-03-06 17:37:53 +0100 |
|---|---|---|
| committer | Tony Lindgren | 2017-03-06 17:37:53 +0100 |
| commit | e24bce8fb4c26bd0d8eca74cbbee1ad049246be3 (patch) | |
| tree | c219c2ec183633aa15841fca5b055a09d2d0b980 /samples/bpf/map_perf_test_kern.c | |
| parent | ARM: OMAP2+: Release device node after it is no longer needed. (diff) | |
| parent | Linux 4.11-rc1 (diff) | |
| download | kernel-qcow2-linux-e24bce8fb4c26bd0d8eca74cbbee1ad049246be3.tar.gz kernel-qcow2-linux-e24bce8fb4c26bd0d8eca74cbbee1ad049246be3.tar.xz kernel-qcow2-linux-e24bce8fb4c26bd0d8eca74cbbee1ad049246be3.zip | |
Merge tag 'v4.11-rc1' into omap-for-v4.11/fixes
Linux 4.11-rc1
Diffstat (limited to 'samples/bpf/map_perf_test_kern.c')
| -rw-r--r-- | samples/bpf/map_perf_test_kern.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/samples/bpf/map_perf_test_kern.c b/samples/bpf/map_perf_test_kern.c index 7ee1574c8ccf..a91872a97742 100644 --- a/samples/bpf/map_perf_test_kern.c +++ b/samples/bpf/map_perf_test_kern.c @@ -57,6 +57,14 @@ struct bpf_map_def SEC("maps") percpu_hash_map_alloc = { .map_flags = BPF_F_NO_PREALLOC, }; +struct bpf_map_def SEC("maps") lpm_trie_map_alloc = { + .type = BPF_MAP_TYPE_LPM_TRIE, + .key_size = 8, + .value_size = sizeof(long), + .max_entries = 10000, + .map_flags = BPF_F_NO_PREALLOC, +}; + SEC("kprobe/sys_getuid") int stress_hmap(struct pt_regs *ctx) { @@ -135,5 +143,27 @@ int stress_percpu_lru_hmap_alloc(struct pt_regs *ctx) return 0; } +SEC("kprobe/sys_gettid") +int stress_lpm_trie_map_alloc(struct pt_regs *ctx) +{ + union { + u32 b32[2]; + u8 b8[8]; + } key; + unsigned int i; + + key.b32[0] = 32; + key.b8[4] = 192; + key.b8[5] = 168; + key.b8[6] = 0; + key.b8[7] = 1; + +#pragma clang loop unroll(full) + for (i = 0; i < 32; ++i) + bpf_map_lookup_elem(&lpm_trie_map_alloc, &key); + + return 0; +} + char _license[] SEC("license") = "GPL"; u32 _version SEC("version") = LINUX_VERSION_CODE; |