diff options
Diffstat (limited to 'libbpf-tools/biostacks.bpf.c')
| -rw-r--r-- | libbpf-tools/biostacks.bpf.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libbpf-tools/biostacks.bpf.c b/libbpf-tools/biostacks.bpf.c index 0ca69880..c1dce671 100644 --- a/libbpf-tools/biostacks.bpf.c +++ b/libbpf-tools/biostacks.bpf.c @@ -74,6 +74,7 @@ int trace_done(void *ctx, struct request *rq) struct internal_rqinfo *i_rqinfop; struct hist *histp; s64 delta; + u64 udelta; i_rqinfop = bpf_map_lookup_elem(&rqinfos, &rq); if (!i_rqinfop) @@ -81,14 +82,15 @@ int trace_done(void *ctx, struct request *rq) delta = (s64)(ts - i_rqinfop->start_ts); if (delta < 0) goto cleanup; + udelta = (u64)delta; histp = bpf_map_lookup_or_try_init(&hists, &i_rqinfop->rqinfo, &zero); if (!histp) goto cleanup; if (targ_ms) - delta /= 1000000U; + udelta /= 1000000U; else - delta /= 1000U; - slot = log2l(delta); + udelta /= 1000U; + slot = log2l(udelta); if (slot >= MAX_SLOTS) slot = MAX_SLOTS - 1; __sync_fetch_and_add(&histp->slots[slot], 1); |