diff options
| author | Alexei Starovoitov <ast@fb.com> | 2016-04-18 20:11:50 -0700 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:51:32 +0300 |
| commit | 3f79f14b62202045de323c754352cee2ac3b1d08 (patch) | |
| tree | a4f79244727463da68d11e8592c3581fd9ac1f40 /kernel/bpf | |
| parent | 9d74f999359bbecf45d9b11dd8c2490cad8dbb7c (diff) | |
perf, bpf: minimize the size of perf_trace_() tracepoint handler
move trace_call_bpf() into helper function to minimize the size
of perf_trace_*() tracepoint handlers.
text data bss dec hex filename
10541679 5526646 2945024 19013349 1221ee5 vmlinux_before
10509422 5526646 2945024 18981092 121a0e4 vmlinux_after
It may seem that perf_fetch_caller_regs() can also be moved,
but that is incorrect, since ip/sp will be wrong.
bpf+tracepoint performance is not affected, since
perf_swevent_put_recursion_context() is now inlined.
export_symbol_gpl can also be dropped.
No measurable change in normal perf tracepoints.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'kernel/bpf')
0 files changed, 0 insertions, 0 deletions