linux-kernel - Re: [PATCHv4 02/14] uprobe: Add support for session consumer

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Message-ID: <20240923121322.GC20793@redhat.com>
Date: Mon, 23 Sep 2024 14:13:23 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Jiri Olsa <olsajiri@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>, bpf@...r.kernel.org,
	Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>,
	Yonghong Song <yhs@...com>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...omium.org>,
	Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCHv4 02/14] uprobe: Add support for session consumer

On 09/23, Jiri Olsa wrote:
>
> On Mon, Sep 23, 2024 at 12:05:53PM +0200, Oleg Nesterov wrote:
> > On 09/23, Jiri Olsa wrote:
> > >
> > > change below should do what you proposed originally
> >
> > LGTM, just one nit below.
> >
> > But I guess you need to do this on top of bpf/bpf.git, Andrii has already
> > applied your series.
>
> that seems confusing

Yes ;)

> but looks like just that one fix with the
> commit link in [1] was applied

Ah, OK.

> > And to remind, 02/14 must be fixed in any case unless I am totally confused,
> > handler_chain() can leak return_instance.
>
> yep it was missing kfree, but it's not needed in this new version

Yes, yes, the new version looks fine to me.

Oleg.