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| author | David S. Miller <davem@davemloft.net> | 2016-03-19 21:05:24 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-19 21:05:24 -0400 |
| commit | c78a85a8430e35aecd53e190a2f6b999062b1037 (patch) | |
| tree | fbd69827579db437492fb77b5faa53814114bed3 /samples/bpf/tracex2_user.c | |
| parent | 133800d1f0288b9ddfc0d0aded10d9efa82d5b8c (diff) | |
| parent | de06dbfa7861c9019eedefc0c356ba86e5098f1b (diff) | |
| download | linux-stable-c78a85a8430e35aecd53e190a2f6b999062b1037.tar.gz linux-stable-c78a85a8430e35aecd53e190a2f6b999062b1037.tar.bz2 linux-stable-c78a85a8430e35aecd53e190a2f6b999062b1037.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'samples/bpf/tracex2_user.c')
| -rw-r--r-- | samples/bpf/tracex2_user.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/samples/bpf/tracex2_user.c b/samples/bpf/tracex2_user.c index cd0241c1447a..ab5b19e68acf 100644 --- a/samples/bpf/tracex2_user.c +++ b/samples/bpf/tracex2_user.c @@ -37,6 +37,8 @@ struct hist_key { static void print_hist_for_pid(int fd, void *task) { struct hist_key key = {}, next_key; + unsigned int nr_cpus = sysconf(_SC_NPROCESSORS_CONF); + long values[nr_cpus]; char starstr[MAX_STARS]; long value; long data[MAX_INDEX] = {}; @@ -49,7 +51,10 @@ static void print_hist_for_pid(int fd, void *task) key = next_key; continue; } - bpf_lookup_elem(fd, &next_key, &value); + bpf_lookup_elem(fd, &next_key, values); + value = 0; + for (i = 0; i < nr_cpus; i++) + value += values[i]; ind = next_key.index; data[ind] = value; if (value && ind > max_ind) |