From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g4t3425.houston.hpe.com (g4t3425.houston.hpe.com [15.241.140.78]) (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 1BD571A1F55 for ; Tue, 17 May 2016 16:12:05 -0700 (PDT) Message-ID: <1463526170.27137.202.camel@hpe.com> Subject: Re: [PATCH v4 6/6] block: Update blkdev_dax_capable() for consistency From: Toshi Kani Date: Tue, 17 May 2016 17:02:50 -0600 In-Reply-To: References: <1462897437-16626-1-git-send-email-toshi.kani@hpe.com> <1462897437-16626-7-git-send-email-toshi.kani@hpe.com> Mime-Version: 1.0 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: Jan Kara , Christoph Hellwig , linux-block@vger.kernel.org, "linux-nvdimm@lists.01.org" , david , "linux-kernel@vger.kernel.org" , micah.parrish@hpe.com, Jens Axboe , Andreas Dilger , Al Viro , linux-fsdevel , Theodore Ts'o List-ID: T24gVHVlLCAyMDE2LTA1LTE3IGF0IDE1OjA3IC0wNzAwLCBEYW4gV2lsbGlhbXMgd3JvdGU6Cj4g T24gVHVlLCBNYXkgMTAsIDIwMTYgYXQgOToyMyBBTSwgVG9zaGkgS2FuaSA8dG9zaGkua2FuaUBo cGUuY29tPiB3cm90ZToKPiA+IAo+ID4gYmxrZGV2X2RheF9jYXBhYmxlKCkgaXMgc2ltaWxhciB0 byBiZGV2X2RheF9zdXBwb3J0ZWQoKSwgYnV0IG5lZWRzCj4gPiB0byByZW1haW4gYXMgYSBzZXBh cmF0ZSBpbnRlcmZhY2UgZm9yIGNoZWNraW5nIGRheCBjYXBhYmlsaXR5IG9mCj4gPiBhIHJhdyBi bG9jayBkZXZpY2UuCj4gPiAKPiA+IFJlbmFtZSBhbmQgcmVsb2NhdGUgYmxrZGV2X2RheF9jYXBh YmxlKCkgdG8ga2VlcCB0aGVtIG1haW50YWluZWQKPiA+IGNvbnNpc3RlbnRseSwgYW5kIGNhbGwg YmRldl9kaXJlY3RfYWNjZXNzKCkgZm9yIHRoZSBkYXggY2FwYWJpbGl0eQo+ID4gY2hlY2suCj4g PiAKPiA+IFRoZXJlIGlzIG5vIGNoYW5nZSBpbiB0aGUgYmVoYXZpb3IuCj4gPiAKwqA6Cj4gPiAr LyoqCj4gPiArICogYmRldl9kYXhfY2FwYWJsZSgpIC0gUmV0dXJuIGlmIHRoZSByYXcgZGV2aWNl IGlzIGNhcGFibGUgZm9yIGRheAo+ID4gKyAqIEBiZGV2OiBUaGUgZGV2aWNlIGZvciByYXcgYmxv Y2sgZGV2aWNlIGFjY2Vzcwo+ID4gKyAqLwo+ID4gK2Jvb2wgYmRldl9kYXhfY2FwYWJsZShzdHJ1 Y3QgYmxvY2tfZGV2aWNlICpiZGV2KQo+ID4gK3sKPiA+ICvCoMKgwqDCoMKgwqDCoHN0cnVjdCBn ZW5kaXNrICpkaXNrID0gYmRldi0+YmRfZGlzazsKPiA+ICvCoMKgwqDCoMKgwqDCoHN0cnVjdCBi bGtfZGF4X2N0bCBkYXggPSB7Cj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgLnNp emUgPSBQQUdFX1NJWkUsCj4gPiArwqDCoMKgwqDCoMKgwqB9Owo+ID4gKwo+ID4gK8KgwqDCoMKg wqDCoMKgaWYgKCFJU19FTkFCTEVEKENPTkZJR19GU19EQVgpKQo+ID4gK8KgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoHJldHVybiBmYWxzZTsKPiA+ICsKPiA+ICvCoMKgwqDCoMKgwqDCoGRh eC5zZWN0b3IgPSAwOwo+ID4gK8KgwqDCoMKgwqDCoMKgaWYgKGJkZXZfZGlyZWN0X2FjY2Vzcyhi ZGV2LCAmZGF4KSA8IDApCj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgcmV0dXJu IGZhbHNlOwo+ID4gKwo+ID4gK8KgwqDCoMKgwqDCoMKgZGF4LnNlY3RvciA9IGJkZXYtPmJkX3Bh cnQtPm5yX3NlY3RzIC0gKFBBR0VfU0laRSAvIDUxMik7Cj4gPiArwqDCoMKgwqDCoMKgwqBpZiAo YmRldl9kaXJlY3RfYWNjZXNzKGJkZXYsICZkYXgpIDwgMCkKPiA+ICvCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqByZXR1cm4gZmFsc2U7Cj4KPiBTbyBJIGp1c3Qgbm90aWNlZCB0aGF0IHRo aXMgbmV3IGltcGxlbWVudGF0aW9uIG9mIGJkZXZfZGF4X2NhcGFibGUoKQo+IHByZXZlbnRzIHVz IGZyb20gZW5hYmxpbmcgREFYIGluIHRoZSBwcmVzZW5jZSBvZiBlcnJvcnMsIHdoaWNoIHdhcyB0 aGUKPiBnb2FsIG9mIFZpc2hhbCdzIHBlbmRpbmcgcGF0Y2hlcyBmb3IgNC43Lgo+IAo+IEkgbGlr ZSB0aGUgZ29hbCBvZiBjZW50cmFsaXppbmcgY2hlY2tzLCBidXQgdGhpcyBjb2xsaWRlcyB0aGUg YmFzZSBEQVgKPiBjYXBhYmlsaXR5IHdpdGggdGhlIGFiaWxpdHkgdG8gcGVyZm9ybSBhbiBhY3R1 YWwgYWNjZXNzZXMgYXQgYSBnaXZlbgo+IGFkZHJlc3MuCj4gCj4gQWxsIHRoZSBpbW1lZGlhdGUg c29sdXRpb25zIHRoYXQgY29tZSB0byBtaW5kIHJpZ2h0IG5vdyBhcmUgcHJldHR5Cj4gdWdseSwg bGlrZSBhbiBpZ25vcmUgZXJyb3JzIGZsYWcuLi4KPiAKPiBIbW0sIHdoYXQgYWJvdXQgZXhwbGlj aXRseSByZXR1cm5pbmcgLUVCQURCTE9DSyBhbmQgdXBkYXRpbmcgc2l6ZSB0bwo+IHJldHVybiB0 aGUgb2Zmc2V0IG9mIHRoZSBlcnJvcj/CoMKgVGhhdCBtaWdodCBiZSB1c2VmdWwgaW5mb3JtYXRp b24gdG8KPiBoYXZlIGluIGdlbmVyYWwuLi4KClRoZSBmdW5jdGlvbiBvbmx5IGNoZWNrcyBhIFBB R0VfU0laRSByYW5nZSBhdCB0aGUgc3RhcnQgYW5kIHRoZSBlbmQsIGJ1dCBJCmFncmVlIHRoYXQg aXQgY2FuIGhhbmRsZSAtRUJBREJMT0NLIChvciAtRUlPKSBmcm9tIGJkZXZfZGlyZWN0X2FjY2Vz cygpIGFzCmFuIGVycm9yIGJ1dCB0aGUgZGV2aWNlIGlzIERBWC1jYXBhYmxlLiDCoGJkZXZfZGF4 X3N1cHBvcnRlZCgpIG1heSBuZWVkIHRoZQpzYW1lIGNoYW5nZSBhcyB3ZWxsIChhbHRob3VnaCBJ IHdvbmRlciBob3cgYSBiYWQgYmxvY2sgYXQgdGhlIHN0YXJ0IGlzCmhhbmRsZWQpLiDCoFNoYWxs IEkgc2VuZCB5b3UgYSBwYXRjaCBmb3IgdGhpcyBjaGFuZ2U/IMKgKEJUVywgZG8gd2UgaGF2ZSBh CnBhdGNoIHRoYXQgZGVmaW5lcyBFQkFEQkxPQ0sgYWxyZWFkeT8pIMKgSSB0aGluayB0aGUgZXJy b3Igb2Zmc2V0IHdvdWxkIGJlCnVzZWZ1bCwgYnV0IHRoYXQgY2hhbmdlIGNhbiBiZSBtYWRlIHdo ZW4gd2UgdXNlIGl0LgoKVGhhbmtzLAotVG9zaGkKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KTGludXgtbnZkaW1tIG1haWxpbmcgbGlzdApMaW51eC1udmRp bW1AbGlzdHMuMDEub3JnCmh0dHBzOi8vbGlzdHMuMDEub3JnL21haWxtYW4vbGlzdGluZm8vbGlu dXgtbnZkaW1tCg==