From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH v3 hmm 04/12] mm/hmm: Simplify hmm_get_or_create and make it reliable Date: Tue, 18 Jun 2019 15:55:55 -0300 Message-ID: <20190618185555.GO6961@ziepe.ca> References: <20190614004450.20252-1-jgg@ziepe.ca> <20190614004450.20252-5-jgg@ziepe.ca> <20190615141211.GD17724@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by gabe.freedesktop.org (Postfix) with ESMTPS id 542ED8919E for ; Tue, 18 Jun 2019 18:55:57 +0000 (UTC) Received: by mail-qk1-x741.google.com with SMTP id c70so9267632qkg.7 for ; Tue, 18 Jun 2019 11:55:57 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20190615141211.GD17724@infradead.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Christoph Hellwig Cc: Andrea Arcangeli , Philip Yang , Ralph Campbell , linux-rdma@vger.kernel.org, John Hubbard , Felix.Kuehling@amd.com, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Jerome Glisse , amd-gfx@lists.freedesktop.org, Ira Weiny , Ben Skeggs List-Id: dri-devel@lists.freedesktop.org T24gU2F0LCBKdW4gMTUsIDIwMTkgYXQgMDc6MTI6MTFBTSAtMDcwMCwgQ2hyaXN0b3BoIEhlbGx3 aWcgd3JvdGU6Cj4gPiArCXNwaW5fbG9jaygmbW0tPnBhZ2VfdGFibGVfbG9jayk7Cj4gPiArCWlm IChtbS0+aG1tKSB7Cj4gPiArCQlpZiAoa3JlZl9nZXRfdW5sZXNzX3plcm8oJm1tLT5obW0tPmty ZWYpKSB7Cj4gPiArCQkJc3Bpbl91bmxvY2soJm1tLT5wYWdlX3RhYmxlX2xvY2spOwo+ID4gKwkJ CXJldHVybiBtbS0+aG1tOwo+ID4gKwkJfQo+ID4gKwl9Cj4gPiArCXNwaW5fdW5sb2NrKCZtbS0+ cGFnZV90YWJsZV9sb2NrKTsKPiAKPiBUaGlzIGNvdWxkIGJlY29tZToKPiAKPiAJc3Bpbl9sb2Nr KCZtbS0+cGFnZV90YWJsZV9sb2NrKTsKPiAJaG1tID0gbW0tPmhtbQo+IAlpZiAoaG1tICYmIGty ZWZfZ2V0X3VubGVzc196ZXJvKCZobW0tPmtyZWYpKQo+IAkJZ290byBvdXRfdW5sb2NrOwo+IAlz 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