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Date: Sun, 18 Feb 2024 11:29:32 +0100
From: "Arnd Bergmann" <arnd@arndb.de>
To: "Andi Kleen" <ak@linux.intel.com>, "Arnd Bergmann" <arnd@kernel.org>
Cc: "Alexander Viro" <viro@zeniv.linux.org.uk>,
 "Christian Brauner" <brauner@kernel.org>, "Jan Kara" <jack@suse.cz>,
 "Nathan Chancellor" <nathan@kernel.org>,
 "Nick Desaulniers" <ndesaulniers@google.com>,
 "Bill Wendling" <morbo@google.com>, "Justin Stitt" <justinstitt@google.com>,
 "Kees Cook" <keescook@chromium.org>,
 "Andrew Morton" <akpm@linux-foundation.org>, linux-fsdevel@vger.kernel.org,
 linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: [PATCH] fs/select: rework stack allocation hack for clang
Content-Type: text/plain

On Sun, Feb 18, 2024, at 11:19, Andi Kleen wrote:
> I suspect given the larger default stack now we could maybe just increase the
> warning limit too, but that should be fine.

I don't think we have increased the default stack size in decades,
it's still 8KB on almost all 32-bit architectures (sh, hexagon and m68k
still allow 4KB stacks, but that's probably broken). I would actually
like to (optionally) reduce the stack size for 64-bit machines
from 16KB to 12KB now that it's always vmapped.

> Reviewed-by: Andi Kleen <ak@linux.intel.com>

Thanks,

    Arnd