Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20230530092342.GA149947@hirez.programming.kicks-ass.net>
 <20230606094251.GA907347@hirez.programming.kicks-ass.net> <CAHk-=wi-RyoUhbChiVaJZoZXheAwnJ7OO=Gxe85BkPAd93TwDA@mail.gmail.com>
 <20230606134005.GE905437@hirez.programming.kicks-ass.net> <CAHk-=wgQ5m+SnWTYGHu0JgYXTk2dkGF+msX=ARfYoo3t1_fX9g@mail.gmail.com>
 <20230606180806.GA942082@hirez.programming.kicks-ass.net> <CAHk-=wgXN1YxGMUFeuC135aeUvqduF8zJJiZZingzS1Pao5h0A@mail.gmail.com>
 <20230607094101.GA964354@hirez.programming.kicks-ass.net> <20230608085248.GA1002251@hirez.programming.kicks-ass.net>
 <CAHk-=wj-BGgTF0YgY+L7_G8Jb0UO38Cd8dwrfMqFMEh93B3D7g@mail.gmail.com> <20230608200618.GA1020752@hirez.programming.kicks-ass.net>
In-Reply-To: <20230608200618.GA1020752@hirez.programming.kicks-ass.net>
From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu, 8 Jun 2023 19:25:27 -0700
Message-ID: <CAHk-=wjcXuZ91WkKv0fuBcm+w7y=y=fNzW9EXfnYYSCFvuyhdA@mail.gmail.com>
Subject: Re: [PATCH v2 0/2] Lock and Pointer guards
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     keescook@chromium.org, gregkh@linuxfoundation.org,
        pbonzini@redhat.com, linux-kernel@vger.kernel.org,
        ojeda@kernel.org, ndesaulniers@google.com, mingo@redhat.com,
        will@kernel.org, longman@redhat.com, boqun.feng@gmail.com,
        juri.lelli@redhat.com, vincent.guittot@linaro.org,
        dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com,
        mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com,
        paulmck@kernel.org, frederic@kernel.org, quic_neeraju@quicinc.com,
        joel@joelfernandes.org, josh@joshtriplett.org,
        mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com,
        rcu@vger.kernel.org, tj@kernel.org, tglx@linutronix.de,
        linux-toolchains@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Thu, Jun 8, 2023 at 1:06=E2=80=AFPM Peter Zijlstra <peterz@infradead.org=
> wrote:
>
>         struct obj *p __free(kfree) =3D kmalloc(...);

Yeah, the above actually looks really good to me - I like the naming
here, and the use looks very logical to me.

Of course, maybe once I see the patches that use this I go "uhh", but
at least for now I think you've hit on a rather legible syntax.

I'm still a bit unsure of the "no_free_ptr(p)" naming, but at least
it's pretty clear about what it does.

So my only worry is that it's not pretty and to the point like your
"__free(kfree)" syntax.

But it feels workable and not misleading, so unless somebody can come
up with a better name, I think it's ok.

           Linus