From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f174.google.com (mail-wi0-f174.google.com [209.85.212.174]) by kanga.kvack.org (Postfix) with ESMTP id AAD9B6B0035 for ; Tue, 12 Aug 2014 17:40:56 -0400 (EDT) Received: by mail-wi0-f174.google.com with SMTP id d1so6527666wiv.7 for ; Tue, 12 Aug 2014 14:40:56 -0700 (PDT) Received: from jenni1.inet.fi (mta-out1.inet.fi. [62.71.2.194]) by mx.google.com with ESMTP id ho4si32275120wjb.122.2014.08.12.14.40.54 for ; Tue, 12 Aug 2014 14:40:54 -0700 (PDT) Date: Wed, 13 Aug 2014 00:40:51 +0300 From: "Kirill A. Shutemov" Subject: Re: x86: vmalloc and THP Message-ID: <20140812214051.GA17497@node.dhcp.inet.fi> References: <53E99F86.5020100@scalemp.com> <20140812060745.GA7987@node.dhcp.inet.fi> <53EA3EE4.6090100@scalemp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53EA3EE4.6090100@scalemp.com> Sender: owner-linux-mm@kvack.org List-ID: To: Oren Twaig Cc: "linux-kernel@vger.kernel.org" , linux-mm@kvack.org, "Shai Fultheim (Shai@ScaleMP.com)" On Tue, Aug 12, 2014 at 07:20:52PM +0300, Oren Twaig wrote: > >What's the point to use vmalloc() in this case? > I've noticed that some lock/s are using linear addresses which are > located at 0xffffc901922b4500 and from what I understand > from mm.txt (kernel 3.0.101): > *ffffc90000000000 - ffffe8ffffffffff (=45 bits) vmalloc/ioremap space > > *So I'm not sure who/how/why this lock got allocated there, but obviously > it is using that linear set. No ? It would be nice to know what lock it was, but nothing is inherently wrong with lock in vmalloc space. -- Kirill A. Shutemov -- 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