linux-kernel - Re: [PATCH v2] perf: Rewrite core context handling

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Date:   Fri, 14 Oct 2022 15:26:07 +0530
From:   Ravi Bangoria <ravi.bangoria@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     acme@...nel.org, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, namhyung@...nel.org, songliubraving@...com,
        eranian@...gle.com, ak@...ux.intel.com, mark.rutland@....com,
        frederic@...nel.org, maddy@...ux.ibm.com, irogers@...gle.com,
        will@...nel.org, robh@...nel.org, mingo@...hat.com,
        catalin.marinas@....com, ndesaulniers@...gle.com,
        srw@...dewatkins.net, linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        sandipan.das@....com, ananth.narayan@....com, kim.phillips@....com,
        santosh.shukla@....com, Ravi Bangoria <ravi.bangoria@....com>
Subject: Re: [PATCH v2] perf: Rewrite core context handling

On 13-Oct-22 4:29 PM, Peter Zijlstra wrote:
> On Thu, Oct 13, 2022 at 03:37:23PM +0530, Ravi Bangoria wrote:
> 
>>> -	refcount_t			refcount;
>>> +	refcount_t			refcount; /* event <-> ctx */
>>
>> Ok. We need to remove all those // XXX get/put_ctx() from code
>> which we added to make refcount a pmu_ctx <-> ctx.
> 
> Them already gone :-) I've not yet fixed up the typoes, but current
> version should be here:
> 
>   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/log/?h=perf/core
> 
> Thanks!

I've been running perf-fuzzer on Xeon machine since yesterday and I don't see any
issue. Will do the same on my AMD machine as well over the weekend.

Thanks,
Ravi