From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 15 Sep 2016 10:26:15 +0200 From: Christoph Hellwig To: Dan Williams Cc: linux-mm@kvack.org, linux-nvdimm@lists.01.org, david@fromorbit.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, hch@lst.de Subject: Re: [PATCH v2 2/3] mm, dax: add VM_DAX flag for DAX VMAs Message-ID: <20160915082615.GA9772@lst.de> References: <147392246509.9873.17750323049785100997.stgit@dwillia2-desk3.amr.corp.intel.com> <147392247875.9873.4205533916442000884.stgit@dwillia2-desk3.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <147392247875.9873.4205533916442000884.stgit@dwillia2-desk3.amr.corp.intel.com> Sender: owner-linux-mm@kvack.org List-ID: On Wed, Sep 14, 2016 at 11:54:38PM -0700, Dan Williams wrote: > The DAX property, page cache bypass, of a VMA is only detectable via the > vma_is_dax() helper to check the S_DAX inode flag. However, this is > only available internal to the kernel and is a property that userspace > applications would like to interrogate. They have absolutely no business knowing such an implementation detail. -- 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