linux-kernel - Re: [PATCH 7/8] ftrace: Add multi direct modify interface

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Message-ID: <20210916164131.632aec22@gandalf.local.home>
Date:   Thu, 16 Sep 2021 16:41:58 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>
Subject: Re: [PATCH 7/8] ftrace: Add multi direct modify interface

On Thu, 16 Sep 2021 21:49:37 +0200
Jiri Olsa <jolsa@...hat.com> wrote:

> > I'm curious to what the use case is for the multi direct modify interface
> > is?  
> 
> when the trampoline is re-generated by adding or removing program,
> we have same functions to trace and new trampoline to attach
> 

Then it probably doesn't matter for the slight delay in synchronization.

-- Steve