Re: [PATCH net-next v7] net/core: Introduce netdev_core_stats_inc()
From: Eric Dumazet <edumazet@google.com>
Date: 2023-10-09 07:54:10
Also in:
linux-mm, linux-trace-kernel, lkml
On Mon, Oct 9, 2023 at 5:07 AM Yajun Deng [off-list ref] wrote:
'this_cpu_read + this_cpu_write' and 'pr_info + this_cpu_inc' will make the trace work well. They all have 'pop' instructions in them. This may be the key to making the trace work well. Hi all, I need your help on percpu and ftrace.
I do not think you made sure netdev_core_stats_inc() was never inlined. Adding more code in it is simply changing how the compiler decides to inline or not.