linux-kernel - Re: [PATCH 4/5] perf/hw_breakpoint: Set breakpoint as disabled in modify_user_hw

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Message-ID: <20180828143823.GM23727@krava>
Date:   Tue, 28 Aug 2018 16:38:23 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Oleg Nesterov <oleg@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Milind Chabbi <chabbi.milind@...il.com>,
        Frederic Weisbecker <frederic@...nel.org>
Subject: Re: [PATCH 4/5] perf/hw_breakpoint: Set breakpoint as disabled in
 modify_user_hw_breakpoint error path

On Tue, Aug 28, 2018 at 11:29:14AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Aug 09, 2018 at 06:30:15PM +0200, Jiri Olsa escreveu:
> > On Thu, Aug 09, 2018 at 04:17:13PM +0200, Oleg Nesterov wrote:
> > > On 08/09, Jiri Olsa wrote:
> > > > -	if (err)
> > > > +	if (err) {
> > > > +		bp->attr.disabled = 1;
> > > >  		return err;
> > > 
> > > Yes, but on the second thought... Can't we simply do
> 
> <SNIP>
> 
> > > instead of this and the next patch?
> 
> <SNIP>
>  
> > yep, seems good.. will send new version
> 
> Ok, but this is just for 4/5 and 5/5, right?

I resent v4 yesterday with final changes/acks, in here:

7186 r   Aug 27 Jiri Olsa       (1.6K) [PATCHv4 0/5] perf/hw_breakpoint: Fix breakpoint modify

thanks,
jirka