From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f172.google.com (mail-pd0-f172.google.com [209.85.192.172]) by kanga.kvack.org (Postfix) with ESMTP id C64D96B00CA for ; Wed, 6 Nov 2013 05:49:27 -0500 (EST) Received: by mail-pd0-f172.google.com with SMTP id w10so10021978pde.31 for ; Wed, 06 Nov 2013 02:49:27 -0800 (PST) Received: from psmtp.com ([74.125.245.158]) by mx.google.com with SMTP id hb3si16972109pac.152.2013.11.06.02.49.24 for ; Wed, 06 Nov 2013 02:49:26 -0800 (PST) Received: by mail-pd0-f181.google.com with SMTP id x10so9913301pdj.40 for ; Wed, 06 Nov 2013 02:49:23 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20131106103403.GB21074@mudshark.cambridge.arm.com> References: <1382442839-7458-1-git-send-email-kirill.shutemov@linux.intel.com> <20131105150145.734a5dd5b5d455800ebfa0d3@linux-foundation.org> <20131105224217.GC20167@shutemov.name> <20131105155619.021f32eba1ca8f15a73ed4c9@linux-foundation.org> <20131105231310.GE20167@shutemov.name> <20131106103403.GB21074@mudshark.cambridge.arm.com> Date: Wed, 6 Nov 2013 11:49:23 +0100 Message-ID: Subject: Re: [PATCH] mm: create a separate slab for page->ptl allocation From: Geert Uytterhoeven Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Will Deacon Cc: "Kirill A. Shutemov" , Andrew Morton , "Kirill A. Shutemov" , Peter Zijlstra , Ingo Molnar , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-arch@vger.kernel.org" On Wed, Nov 6, 2013 at 11:34 AM, Will Deacon wrote: > FWIW: if the architecture selects ARCH_USE_CMPXCHG_LOCKREF, then a spinlock_t > is 32-bit (assuming that unsigned int is also 32-bit). Linux already assumes (unsigned) int is 32-bit. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org