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bh=3M6tTHlyFNKQwbGOtrLH1dHnpAA9L/D3mvAYYkgV538=; b=HFdExlKg8EqxzBOOaH7hRhKKJ9DSZNzMVgfNvJS94XYqqMloJL86ko7miWWLcqJWSYch8P jNu+yi36iC6c9p0IC7lhnf8B16chhJ5CIeLUDVmHj+8ufmUNWWhoC3iCED13fxia6BZckc FEggNvQI8/8ZGxh+rnq73EG+Z3xqDws= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-392-e2fb4B8yPWyJlQzkc_nNww-1; Tue, 11 May 2021 12:23:16 -0400 X-MC-Unique: e2fb4B8yPWyJlQzkc_nNww-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 687B38015D0; Tue, 11 May 2021 16:23:13 +0000 (UTC) Received: from [10.3.115.19] (ovpn-115-19.phx2.redhat.com [10.3.115.19]) by smtp.corp.redhat.com (Postfix) with ESMTP id 968105DEAD; Tue, 11 May 2021 16:23:10 +0000 (UTC) Subject: Re: [PATCH 01/16] PCI/P2PDMA: Pass gfp_mask flags to upstream_bridge_distance_warn() To: Logan Gunthorpe , John Hubbard , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org References: <20210408170123.8788-1-logang@deltatee.com> <20210408170123.8788-2-logang@deltatee.com> <36b86579-da30-0671-26e9-75977a265742@deltatee.com> From: Don Dutile Message-ID: Date: Tue, 11 May 2021 12:23:10 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <36b86579-da30-0671-26e9-75977a265742@deltatee.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Cc: Minturn Dave B , Ira Weiny , Daniel Vetter , Dave Hansen , Robin Murphy , Matthew Wilcox , =?UTF-8?Q?Christian_K=c3=b6nig?= , Jason Gunthorpe , Bjorn Helgaas , Jason Ekstrand , Bjorn Helgaas , Dan Williams , Stephen Bates , Jakowski Andrzej , Christoph Hellwig , Xiong Jianxin X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gNS8xMS8yMSAxMjoxMiBQTSwgTG9nYW4gR3VudGhvcnBlIHdyb3RlOgo+Cj4gT24gMjAyMS0w NS0xMSAxMDowNSBhLm0uLCBEb24gRHV0aWxlIHdyb3RlOgo+PiBPbiA1LzEvMjEgMTE6NTggUE0s IEpvaG4gSHViYmFyZCB3cm90ZToKPj4+IE9uIDQvOC8yMSAxMDowMSBBTSwgTG9nYW4gR3VudGhv cnBlIHdyb3RlOgo+Pj4+IEluIG9yZGVyIHRvIGNhbGwgdXBzdHJlYW1fYnJpZGdlX2Rpc3RhbmNl X3dhcm4oKSBmcm9tIGEgZG1hX21hcCBmdW5jdGlvbiwKPj4+PiBpdCBtdXN0IG5vdCBzbGVlcC4g VGhlIG9ubHkgcmVhc29uIGl0IGRvZXMgc2xlZXAgaXMgdG8gYWxsb2NhdGUgdGhlIHNlcWJ1Zgo+ Pj4+IHRvIHByaW50IHdoaWNoIGRldmljZXMgYXJlIHdpdGhpbiB0aGUgQUNTIHBhdGguCj4+Pj4K Pj4+PiBTd2l0Y2ggdGhlIGttYWxsb2MgY2FsbCB0byB1c2UgYSBwYXNzZWQgaW4gZ2ZwX21hc2sg YW5kIGRvbid0IHByaW50IHRoYXQKPj4+PiBtZXNzYWdlIGlmIHRoZSBidWZmZXIgZmFpbHMgdG8g YmUgYWxsb2NhdGVkLgo+Pj4+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogTG9nYW4gR3VudGhvcnBlIDxs b2dhbmdAZGVsdGF0ZWUuY29tPgo+Pj4+IEFja2VkLWJ5OiBCam9ybiBIZWxnYWFzIDxiaGVsZ2Fh c0Bnb29nbGUuY29tPgo+Pj4+IC0tLQo+Pj4+ICDCoCBkcml2ZXJzL3BjaS9wMnBkbWEuYyB8IDIx ICsrKysrKysrKysrLS0tLS0tLS0tLQo+Pj4+ICDCoCAxIGZpbGUgY2hhbmdlZCwgMTEgaW5zZXJ0 aW9ucygrKSwgMTAgZGVsZXRpb25zKC0pCj4+Pj4KPj4+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9w Y2kvcDJwZG1hLmMgYi9kcml2ZXJzL3BjaS9wMnBkbWEuYwo+Pj4+IGluZGV4IDE5NjM4MjYzMDM2 My4uYmQ4OTQzN2ZhZjA2IDEwMDY0NAo+Pj4+IC0tLSBhL2RyaXZlcnMvcGNpL3AycGRtYS5jCj4+ Pj4gKysrIGIvZHJpdmVycy9wY2kvcDJwZG1hLmMKPj4+PiBAQCAtMjY3LDcgKzI2Nyw3IEBAIHN0 YXRpYyBpbnQgcGNpX2JyaWRnZV9oYXNfYWNzX3JlZGlyKHN0cnVjdCBwY2lfZGV2ICpwZGV2KQo+ Pj4+ICDCoCDCoCBzdGF0aWMgdm9pZCBzZXFfYnVmX3ByaW50X2J1c19kZXZmbihzdHJ1Y3Qgc2Vx X2J1ZiAqYnVmLCBzdHJ1Y3QgcGNpX2RldiAqcGRldikKPj4+PiAgwqAgewo+Pj4+IC3CoMKgwqAg aWYgKCFidWYpCj4+Pj4gK8KgwqDCoCBpZiAoIWJ1ZiB8fCAhYnVmLT5idWZmZXIpCj4+PiBUaGlz IGlzIG5vdCBncmVhdCwgc29ydCBvZiBmcm9tIGFuIG92ZXJhbGwgZGVzaWduIHBvaW50IG9mIHZp ZXcsIGV2ZW4gdGhvdWdoCj4+PiBpdCBtYWtlcyB0aGUgcmVzdCBvZiB0aGUgcGF0Y2ggd29yay4g U2VlIGJlbG93IGZvciBvdGhlciBpZGVhcywgdGhhdCB3aWxsCj4+PiBhdm9pZCB0aGUgbmVlZCBm b3IgdGhpcyBzb3J0IG9mIG9kZCBwb2ludCBmaXguCj4+Pgo+PiArMS4KPj4gSW4gZmFjdCwgSSBk aWRuJ3Qgc2VlIGhvdyB0aGUga21hbGxvYyB3YXMgY2hhbmdlZC4uLiB5b3UgcmVmYWN0b3JlZCB0 aGUgY29kZSB0byBwYXNzLWluIHRoZQo+PiBHRlBfS0VSTkVMIHRoYXQgd2FzIG9yaWdpbmFsbHkg aGFyZC1jb2RlZCBpbnRvIHVwc3RyZWFtX2JyaWRnZV9kaXN0YW5jZV93YXJuKCk7Cj4+IEkgZG9u J3Qgc2VlIGhvdyB0aGF0IGF2b2lkZWQgdGhlIGttYWxsb2MoKSBjYWxsLgo+PiBpbiBmYWN0LCBJ IGFsc28gc2VlIHlvdSBsb3N0IGEgZmFpbGVkIGttYWxsb2MoKSBjaGVjaywgc28gaXQgc2VlbXMg dG8gaGF2ZSB0YWtlbiBhIHN0ZXAgYmFjay4KPiBJJ3ZlIGNoYW5nZWQgdGhpcyBpbiB2MiB0byBq dXN0IHVzZSBzb21lIG1lbW9yeSBhbGxvY2F0ZWQgb24gdGhlIHN0YWNrLgo+IEF2b2lkcyB0aGlz IGFyZ3VtZW50IGFsbCB0b2dldGhlci4KPgo+IExvZ2FuCj4KTG9va2luZyBmd2QgdG8gdGhlIHYy OyBhZ2FpbiwgbXkgYXBvbG9naWVzIGZvciB0aGUgZGVsYXksIGFuZCB0aGUgcmVkdW5kYW5jeSBp dCdzIGFkZGluZyB0byB5b3VyIGZlZWRiYWNrIHJldmlldyAmIGNoYW5nZXMuCi1Eb24KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxpbmcg bGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4 Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==