From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [RFC PATCH 0/7] dax, ext4: Synchronous page faults Date: Fri, 11 Aug 2017 03:03:27 -0700 Message-ID: <20170811100327.GD7064@infradead.org> References: <20170727131245.28279-1-jack@suse.cz> <20170727215713.GA22000@linux.intel.com> <20170728093821.GB29433@quack2.suse.cz> <20170801110241.GE6742@infradead.org> <20170801112603.GG4215@quack2.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jan Kara , linux-nvdimm , Dave Chinner , Christoph Hellwig , Andy Lutomirski , Linux FS Devel , "linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" To: Dan Williams Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" List-Id: linux-ext4.vger.kernel.org T24gTW9uLCBBdWcgMDcsIDIwMTcgYXQgMDU6MjQ6MDhQTSAtMDcwMCwgRGFuIFdpbGxpYW1zIHdy b3RlOgo+IERvZXMgc3lzX21tYXAoKSByZWplY3QgdW5rbm93biBmbGFnIHZhbHVlcyB0b2RheT8g SSdtIGVpdGhlciBub3QKPiBsb29raW5nIGluIHRoZSByaWdodCBwbGFjZSBvciBpdCdzIG1pc3Np bmcgYW5kIHdlJ2xsIG5lZWQgc29tZQo+IGludGVyZmFjZS9tZWNoYW5pc20gdG8gY2hlY2sgaWYg TUFQX1NZTkMgaXMgaG9ub3JlZC4KCkl0IGRvZXNuJ3Qgc2VlbSB0byByZWplY3QgdW5rbm93biBm bGFncy4KClRoZSBsYWNrIG9mIGZsYWdzIGNoZWNraW5nIHN0cmlrZXMgYmFjayBvbmNlIG1vcmUs IHNpZ2jhuasuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkxpbnV4LW52ZGltbSBtYWlsaW5nIGxpc3QKTGludXgtbnZkaW1tQGxpc3RzLjAxLm9yZwpodHRw czovL2xpc3RzLjAxLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52ZGltbQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 982BF21D490FD for ; Fri, 11 Aug 2017 03:01:13 -0700 (PDT) Date: Fri, 11 Aug 2017 03:03:27 -0700 From: Christoph Hellwig Subject: Re: [RFC PATCH 0/7] dax, ext4: Synchronous page faults Message-ID: <20170811100327.GD7064@infradead.org> References: <20170727131245.28279-1-jack@suse.cz> <20170727215713.GA22000@linux.intel.com> <20170728093821.GB29433@quack2.suse.cz> <20170801110241.GE6742@infradead.org> <20170801112603.GG4215@quack2.suse.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" To: Dan Williams Cc: linux-xfs@vger.kernel.org, Jan Kara , linux-nvdimm , Dave Chinner , Christoph Hellwig , Andy Lutomirski , Linux FS Devel , "linux-ext4@vger.kernel.org" List-ID: T24gTW9uLCBBdWcgMDcsIDIwMTcgYXQgMDU6MjQ6MDhQTSAtMDcwMCwgRGFuIFdpbGxpYW1zIHdy b3RlOgo+IERvZXMgc3lzX21tYXAoKSByZWplY3QgdW5rbm93biBmbGFnIHZhbHVlcyB0b2RheT8g SSdtIGVpdGhlciBub3QKPiBsb29raW5nIGluIHRoZSByaWdodCBwbGFjZSBvciBpdCdzIG1pc3Np bmcgYW5kIHdlJ2xsIG5lZWQgc29tZQo+IGludGVyZmFjZS9tZWNoYW5pc20gdG8gY2hlY2sgaWYg TUFQX1NZTkMgaXMgaG9ub3JlZC4KCkl0IGRvZXNuJ3Qgc2VlbSB0byByZWplY3QgdW5rbm93biBm bGFncy4KClRoZSBsYWNrIG9mIGZsYWdzIGNoZWNraW5nIHN0cmlrZXMgYmFjayBvbmNlIG1vcmUs IHNpZ2jhuasuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkxpbnV4LW52ZGltbSBtYWlsaW5nIGxpc3QKTGludXgtbnZkaW1tQGxpc3RzLjAxLm9yZwpodHRw czovL2xpc3RzLjAxLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52ZGltbQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([65.50.211.133]:59746 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751932AbdHKKDe (ORCPT ); Fri, 11 Aug 2017 06:03:34 -0400 Date: Fri, 11 Aug 2017 03:03:27 -0700 From: Christoph Hellwig Subject: Re: [RFC PATCH 0/7] dax, ext4: Synchronous page faults Message-ID: <20170811100327.GD7064@infradead.org> References: <20170727131245.28279-1-jack@suse.cz> <20170727215713.GA22000@linux.intel.com> <20170728093821.GB29433@quack2.suse.cz> <20170801110241.GE6742@infradead.org> <20170801112603.GG4215@quack2.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: Dan Williams Cc: Jan Kara , Christoph Hellwig , linux-nvdimm , Dave Chinner , linux-xfs@vger.kernel.org, Andy Lutomirski , Linux FS Devel , "linux-ext4@vger.kernel.org" On Mon, Aug 07, 2017 at 05:24:08PM -0700, Dan Williams wrote: > Does sys_mmap() reject unknown flag values today? I'm either not > looking in the right place or it's missing and we'll need some > interface/mechanism to check if MAP_SYNC is honored. It doesn't seem to reject unknown flags. The lack of flags checking strikes back once more, sighṫ.