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[109.252.170.211]) by smtp.googlemail.com with ESMTPSA id 15sm205394lfl.38.2020.09.04.02.25.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 04 Sep 2020 02:25:30 -0700 (PDT) Subject: Re: [PATCH RESEND v3] iommu/tegra-smmu: Add missing locks around mapping operations From: Dmitry Osipenko To: Joerg Roedel References: <20200814162252.31965-1-digetx@gmail.com> <20200904090519.GF6714@8bytes.org> <9f7b042e-db46-dd5b-acb8-9b1e8213fa62@gmail.com> Message-ID: Date: Fri, 4 Sep 2020 12:25:29 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <9f7b042e-db46-dd5b-acb8-9b1e8213fa62@gmail.com> Content-Language: en-US Cc: linux-tegra@vger.kernel.org, iommu@lists.linux-foundation.org, Thierry Reding , linux-kernel@vger.kernel.org, Jonathan Hunter 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-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" MDQuMDkuMjAyMCAxMjoxOSwgRG1pdHJ5IE9zaXBlbmtvINC/0LjRiNC10YI6Cj4gMDQuMDkuMjAy MCAxMjowNSwgSm9lcmcgUm9lZGVsINC/0LjRiNC10YI6Cj4+IE9uIEZyaSwgQXVnIDE0LCAyMDIw IGF0IDA3OjIyOjUyUE0gKzAzMDAsIERtaXRyeSBPc2lwZW5rbyB3cm90ZToKPj4+IFRoZSBtYXBw aW5nIG9wZXJhdGlvbnMgb2YgdGhlIFRlZ3JhIFNNTVUgZHJpdmVyIGFyZSBzdWJqZWN0ZWQgdG8g YSByYWNlCj4+PiBjb25kaXRpb24gaXNzdWVzIGJlY2F1c2UgU01NVSBBZGRyZXNzIFNwYWNlIGlz bid0IGFsbG9jYXRlZCBhbmQgZnJlZWQKPj4+IGF0b21pY2FsbHksIHdoaWxlIGl0IHNob3VsZCBi ZS4gVGhpcyBwYXRjaCBtYWtlcyB0aGUgbWFwcGluZyBvcGVyYXRpb25zCj4+PiBhdG9taWMsIGl0 IGZpeGVzIGFuIGFjY2lkZW50YWxseSByZWxlYXNlZCBIb3N0MXggQWRkcmVzcyBTcGFjZSBwcm9i bGVtCj4+PiB3aGljaCBoYXBwZW5zIHdoaWxlIHJ1bm5pbmcgbXVsdGlwbGUgZ3JhcGhpY3MgdGVz dHMgaW4gcGFyYWxsZWwgb24KPj4+IFRlZ3JhMzAsIGkuZS4gYnkgaGF2aW5nIG11bHRpcGxlIHRo cmVhZHMgcmFjaW5nIHdpdGggZWFjaCBvdGhlciBpbiB0aGUKPj4+IEhvc3QxeCdzIHN1Ym1pc3Np b24gYW5kIGNvbXBsZXRpb24gY29kZSBwYXRocywgcGVyZm9ybWluZyBJT1ZBIG1hcHBpbmdzCj4+ PiBhbmQgdW5tYXBwaW5ncyBpbiBwYXJhbGxlbC4KPj4+Cj4+PiBDYzogPHN0YWJsZUB2Z2VyLmtl cm5lbC5vcmc+Cj4+PiBTaWduZWQtb2ZmLWJ5OiBEbWl0cnkgT3NpcGVua28gPGRpZ2V0eEBnbWFp bC5jb20+Cj4+Cj4+IFRoaWVycnksIGRvZXMgdGhpcyBjaGFuZ2UgbG9vayBnb29kIHRvIHlvdT8K Pj4KPiAKPiBIZWxsbyBKb2VyZyBhbmQgVGhpZXJyeSwKPiAKPiBQbGVhc2UgdGFrZSBpbnRvIGFj Y291bnQgdGhhdCB0aGVyZSBpcyBhIHY1IG5vdyB0aGF0IEkgc2VudCBvdXQgYSBkYXkKPiBhZ28s IGl0J3MgbW9yZSBvcHRpbWl6ZWQgdmVyc2lvbiBhbmQgc3VwcG9ydHMgYm90aCBhdG9taWMgYW5k IG5vbi1hdG9taWMKPiBHRlAgZmxhZ3MgZm9yIHRoZSBtYXBwaW5nIG9wZXJhdGlvbi4KPiAKCmh0 dHBzOi8vcGF0Y2h3b3JrLm96bGFicy5vcmcvcHJvamVjdC9saW51eC10ZWdyYS9wYXRjaC8yMDIw MDkwMTIwMzczMC4yNzg2NS0xLWRpZ2V0eEBnbWFpbC5jb20vCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0 cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcv bWFpbG1hbi9saXN0aW5mby9pb21tdQ==