Le 14/07/2025 à 18:15, Steven Rostedt a écrit :
On Mon, 14 Jul 2025 17:08:58 +0100
Colin Ian King <colin.i.king@xxxxxxxxx> wrote:
Don't populate the read-only 'type' on the stack at run time,
instead make it static.
Hmm, why not?
-- Steve
This is more efficient because there is no need to copy things on the
stack at run-time.
It also makes binary slightly smaller.
On my x86_64, with allmodconfig:
Before:
======
229194 924492 35104 1188790 1223b6 kernel/trace/ring_buffer.o
After:
=====
228873 924268 35040 1188181 122155 kernel/trace/ring_buffer.o
CJ
