linux-kernel - Re: [PATCH v3 0/2] Ajust lockdep static allocations for sparc

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Message-ID: <20161129123546.GM3174@twins.programming.kicks-ass.net>
Date:   Tue, 29 Nov 2016 13:35:46 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Babu Moger <babu.moger@...cle.com>, Ingo Molnar <mingo@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Tejun Heo <tj@...nel.org>, Sam Ravnborg <sam@...nborg.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        sparclinux <sparclinux@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] Ajust lockdep static allocations for sparc

On Tue, Nov 29, 2016 at 01:29:07PM +0100, Peter Zijlstra wrote:
> > BTW, is there any particular reason these huge arrays are in BSS, and not
> > allocated dynamically? That would solve my problems as well...
> 
> Is there a memory allocator available before _any_ locks are used, and
> that itself also doesn't use locks?

And if that is, the platform could use that to allocate .bss, no?