From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by kanga.kvack.org (Postfix) with ESMTP id EFE316B0069 for ; Sat, 18 Oct 2014 14:23:40 -0400 (EDT) Received: by mail-pd0-f169.google.com with SMTP id w10so2567155pde.28 for ; Sat, 18 Oct 2014 11:23:40 -0700 (PDT) Received: from shards.monkeyblade.net (shards.monkeyblade.net. [2001:4f8:3:36:211:85ff:fe63:a549]) by mx.google.com with ESMTP id mq9si3957328pdb.91.2014.10.18.11.23.39 for ; Sat, 18 Oct 2014 11:23:39 -0700 (PDT) Date: Sat, 18 Oct 2014 14:23:35 -0400 (EDT) Message-Id: <20141018.142335.1935310766779155342.davem@davemloft.net> Subject: Re: unaligned accesses in SLAB etc. From: David Miller In-Reply-To: <20141018.135907.356113264227709132.davem@davemloft.net> References: <20141016.165017.1151349565275102498.davem@davemloft.net> <20141018.135907.356113264227709132.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: mroos@linux.ee Cc: iamjoonsoo.kim@lge.com, linux-kernel@vger.kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, akpm@linux-foundation.org, linux-mm@kvack.org, sparclinux@vger.kernel.org From: David Miller Date: Sat, 18 Oct 2014 13:59:07 -0400 (EDT) > I don't want to define the array size of the fpregs save area > explicitly and thereby placing an artificial limit there. Nevermind, it seems we have a hard limit of 7 FPU save areas anyways. Meelis, please try this patch: diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index f85dc85..cc6275c 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -63,7 +63,8 @@ struct thread_info { struct pt_regs *kern_una_regs; unsigned int kern_una_insn; - unsigned long fpregs[0] __attribute__ ((aligned(64))); + unsigned long fpregs[(7 * 256) / sizeof(unsigned long)] + __attribute__ ((aligned(64))); }; #endif /* !(__ASSEMBLY__) */ -- 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