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From:   Alexander Potapenko <glider@google.com>
Date:   Thu, 18 Apr 2019 14:11:44 +0200
Message-ID: <CAG_fn=WL0yLqavV_mhodT=B6KcAzJ+LS0hss1jqany9Cn92RHw@mail.gmail.com>
Subject: Re: [patch V2 14/29] dm bufio: Simplify stack trace retrieval
To:     Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>, x86@kernel.org,
        Andy Lutomirski <luto@kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>, dm-devel@redhat.com,
        Mike Snitzer <snitzer@redhat.com>,
        Alasdair Kergon <agk@redhat.com>,
        Alexey Dobriyan <adobriyan@gmail.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Pekka Enberg <penberg@kernel.org>,
        Linux Memory Management List <linux-mm@kvack.org>,
        David Rientjes <rientjes@google.com>,
        Christoph Lameter <cl@linux.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
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        Andrey Ryabinin <aryabinin@virtuozzo.com>,
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        Mike Rapoport <rppt@linux.vnet.ibm.com>,
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        Robin Murphy <robin.murphy@arm.com>,
        Christoph Hellwig <hch@lst.de>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Johannes Thumshirn <jthumshirn@suse.de>,
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On Thu, Apr 18, 2019 at 1:54 PM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> On Thu, 18 Apr 2019, Alexander Potapenko wrote:
> > On Thu, Apr 18, 2019 at 11:06 AM Thomas Gleixner <tglx@linutronix.de> w=
rote:
> > > -       save_stack_trace(&b->stack_trace);
> > > +       b->stack_len =3D stack_trace_save(b->stack_entries, MAX_STACK=
, 2);
> > As noted in one of similar patches before, can we have an inline
> > comment to indicate what does this "2" stand for?
>
> Come on. We have gazillion of functions which take numerical constant
> arguments. Should we add comments to all of them?
Ok, sorry. I might not be familiar enough with the kernel style guide.
> Thanks,
>
>         tglx


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Alexander Potapenko
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