From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-f178.google.com (mail-yk0-f178.google.com [209.85.160.178]) by kanga.kvack.org (Postfix) with ESMTP id CA3FB6B0032 for ; Thu, 14 May 2015 16:26:33 -0400 (EDT) Received: by ykep21 with SMTP id p21so27760459yke.3 for ; Thu, 14 May 2015 13:26:33 -0700 (PDT) Received: from aserp1040.oracle.com (aserp1040.oracle.com. [141.146.126.69]) by mx.google.com with ESMTPS id o100si12925108yhp.170.2015.05.14.13.26.32 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 May 2015 13:26:32 -0700 (PDT) Message-ID: <555504F3.5020209@oracle.com> Date: Thu, 14 May 2015 16:26:27 -0400 From: Sasha Levin MIME-Version: 1.0 Subject: Re: [PATCH 00/11] mm: debug: formatting memory management structs References: <1431623414-1905-1-git-send-email-sasha.levin@oracle.com> <20150514132413.2a56b25489e0c644e68229bb@linux-foundation.org> In-Reply-To: <20150514132413.2a56b25489e0c644e68229bb@linux-foundation.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kirill@shutemov.name On 05/14/2015 04:24 PM, Andrew Morton wrote: > On Thu, 14 May 2015 13:10:03 -0400 Sasha Levin wrote: > >> > This patch series adds knowledge about various memory management structures >> > to the standard print functions. >> > >> > In essence, it allows us to easily print those structures: >> > >> > printk("%pZp %pZm %pZv", page, mm, vma); >> > >> > This allows us to customize output when hitting bugs even further, thus >> > we introduce VM_BUG() which allows printing anything when hitting a bug >> > rather than just a single piece of information. >> > >> > This also means we can get rid of VM_BUG_ON_* since they're now nothing >> > more than a format string. > A good set of example output would help people understand this proposal. That would be the equivalent of doing: dump_page(page); dump_mm(mm); dump_vma(vma); I'll add a few example usages in. Thanks, Sasha -- 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