linux-kernel - Re: [PATCH tip/perf] uprobes: avoid false lockdep splat in uprobe timer callback

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Message-ID: <20250403145334.04ac4511@gandalf.local.home>
Date: Thu, 3 Apr 2025 14:53:34 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Andrii Nakryiko <andrii@...nel.org>, linux-trace-kernel@...r.kernel.org,
 peterz@...radead.org, mingo@...nel.org, bpf@...r.kernel.org,
 linux-kernel@...r.kernel.org, kernel-team@...a.com, oleg@...hat.com,
 mhiramat@...nel.org, ast@...nel.org
Subject: Re: [PATCH tip/perf] uprobes: avoid false lockdep splat in uprobe
 timer callback

On Thu, 3 Apr 2025 19:56:19 +0200
Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:

> On 2025-04-03 13:53:31 [-0400], Steven Rostedt wrote:
> > On Thu, 3 Apr 2025 19:49:17 +0200
> > Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
> >   
> > > > +	/* See free_ret_instance() for notes on seqcount use.    
> > > 
> > > This is not a proper multi line comment.  
> > 
> > It's only proper in the networking code, but not the rest of the kernel.  
> 
> I wasn't aware that uprobe is following networking standards here.

It's not, but I know that Andrii works a bit with the networking code.

-- Steve