Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
perf ftrace: Remove an unnecessary condition check in BPF
The bucket_num is set based on the {max,min}_latency already in
cmd_ftrace(), so no need to check it again in BPF. Also I found
that it didn't pass the max_latency to BPF. :)
No functional changes intended.
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/r/20250227191223.1288473-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
+1
-2
+1
-2
tools/perf/util/bpf_skel/func_latency.bpf.c
+1
-2
tools/perf/util/bpf_skel/func_latency.bpf.c
···
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// than the min latency desired.
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if (val > 0) { // 1st entry: [ 1 unit .. bucket_range units )
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key = val / bucket_range + 1;
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-
if (key >= bucket_num ||
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-
val >= max_latency - min_latency)
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+
if (key >= bucket_num)
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key = bucket_num - 1;
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}
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