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Tue, 9 Feb 2021 09:37:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vqXN0+PpQ615 for ; Tue, 9 Feb 2021 09:37:48 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by whitealder.osuosl.org (Postfix) with ESMTPS id BE047872B2 for ; Tue, 9 Feb 2021 09:37:48 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id E804D64E27; Tue, 9 Feb 2021 09:37:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612863468; bh=3uhgNxvkQ3DE4szNXNrRNOmM42w+TvFbEvvc39Kp9o8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dnM8UoIu7vjUquwOGgLNI/nFIs7c5cxhJzUlDrEgEcxaM71P1VbXUNr75slYvIvip JxniosSVimGPVVpFt1UW4dNP6DywhSeOr4E8K+/y/jp/U1BlN9NKoE4b81YZyYVsS4 TOZQ8fJ6UIH5YGUd0osrd5uxargdhmbZrAwT4234= Date: Tue, 9 Feb 2021 10:37:45 +0100 From: Greg KH To: Zhou Wang Subject: Re: [RFC PATCH v3 1/2] mempinfd: Add new syscall to provide memory pin Message-ID: References: <1612685884-19514-2-git-send-email-wangzhou1@hisilicon.com> <2e6cf99f-beb6-9bef-1316-5e58fb0aa86e@hisilicon.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2e6cf99f-beb6-9bef-1316-5e58fb0aa86e@hisilicon.com> Cc: jean-philippe@linaro.org, kevin.tian@intel.com, Sihang Chen , jgg@ziepe.ca, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, Andy Lutomirski , linux-mm@kvack.org, iommu@lists.linux-foundation.org, Alexander Viro , zhangfei.gao@linaro.org, Andrew Morton , liguozhu@hisilicon.com, linux-arm-kernel@lists.infradead.org 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" T24gVHVlLCBGZWIgMDksIDIwMjEgYXQgMDU6MTc6NDZQTSArMDgwMCwgWmhvdSBXYW5nIHdyb3Rl Ogo+IE9uIDIwMjEvMi84IDY6MDIsIEFuZHkgTHV0b21pcnNraSB3cm90ZToKPiA+IAo+ID4gCj4g Pj4gT24gRmViIDcsIDIwMjEsIGF0IDEyOjMxIEFNLCBaaG91IFdhbmcgPHdhbmd6aG91MUBoaXNp bGljb24uY29tPiB3cm90ZToKPiA+Pgo+ID4+IO+7v1NWQShzaGFyZSB2aXJ0dWFsIGFkZHJlc3Mp IG9mZmVycyBhIHdheSBmb3IgZGV2aWNlIHRvIHNoYXJlIHByb2Nlc3MgdmlydHVhbAo+ID4+IGFk ZHJlc3Mgc3BhY2Ugc2FmZWx5LCB3aGljaCBtYWtlcyBtb3JlIGNvbnZlbmllbnQgZm9yIHVzZXIg c3BhY2UgZGV2aWNlCj4gPj4gZHJpdmVyIGNvZGluZy4gSG93ZXZlciwgSU8gcGFnZSBmYXVsdHMg bWF5IGhhcHBlbiB3aGVuIGRvaW5nIERNQQo+ID4+IG9wZXJhdGlvbnMuIEFzIHRoZSBsYXRlbmN5 IG9mIElPIHBhZ2UgZmF1bHQgaXMgcmVsYXRpdmVseSBiaWcsIERNQQo+ID4+IHBlcmZvcm1hbmNl IHdpbGwgYmUgYWZmZWN0ZWQgc2V2ZXJlbHkgd2hlbiB0aGVyZSBhcmUgSU8gcGFnZSBmYXVsdHMu Cj4gPj4gRnJvbSBhIGxvbmcgdGVybSB2aWV3LCBETUEgcGVyZm9ybWFuY2Ugd2lsbCBiZSBub3Qg c3RhYmxlLgo+ID4+Cj4gPj4gSW4gaGlnaC1wZXJmb3JtYW5jZSBJL08gY2FzZXMsIGFjY2VsZXJh dG9ycyBtaWdodCB3YW50IHRvIHBlcmZvcm0KPiA+PiBJL08gb24gYSBtZW1vcnkgd2l0aG91dCBJ TyBwYWdlIGZhdWx0cyB3aGljaCBjYW4gcmVzdWx0IGluIGRyYW1hdGljYWxseQo+ID4+IGluY3Jl YXNlZCBsYXRlbmN5LiBDdXJyZW50IG1lbW9yeSByZWxhdGVkIEFQSXMgY291bGQgbm90IGFjaGll dmUgdGhpcwo+ID4+IHJlcXVpcmVtZW50LCBlLmcuIG1sb2NrIGNhbiBvbmx5IGF2b2lkIG1lbW9y eSB0byBzd2FwIHRvIGJhY2t1cCBkZXZpY2UsCj4gPj4gcGFnZSBtaWdyYXRpb24gY2FuIHN0aWxs IHRyaWdnZXIgSU8gcGFnZSBmYXVsdC4KPiA+Pgo+ID4+IFZhcmlvdXMgZHJpdmVycyB3b3JraW5n IHVuZGVyIHRyYWRpdGlvbmFsIG5vbi1TVkEgbW9kZSBhcmUgdXNpbmcKPiA+PiB0aGVpciBvd24g c3BlY2lmaWMgaW9jdGwgdG8gZG8gcGluLiBTdWNoIGlvY3RsIGNhbiBiZSBzZWVuIGluIHY0bDIs Cj4gPj4gZ3B1LCBpbmZpbmliYW5kLCBtZWRpYSwgdmZpbywgZXRjLiBEcml2ZXJzIGFyZSB1c3Vh bGx5IGRvaW5nIGRtYQo+ID4+IG1hcHBpbmcgd2hpbGUgZG9pbmcgcGluLgo+ID4+Cj4gPj4gQnV0 LCBpbiBTVkEgbW9kZSwgcGluIGNvdWxkIGJlIGEgY29tbW9uIG5lZWQgd2hpY2ggaXNuJ3QgbmVj ZXNzYXJpbHkKPiA+PiBib3VuZCB3aXRoIGFueSBkcml2ZXJzLCBhbmQgbmVpdGhlciBpcyBkbWEg bWFwcGluZyBuZWVkZWQgYnkgZHJpdmVycwo+ID4+IHNpbmNlIGRldmljZXMgYXJlIHVzaW5nIHRo ZSB2aXJ0dWFsIGFkZHJlc3Mgb2YgQ1BVLiBUaHVzLCBJdCBpcyBiZXR0ZXIKPiA+PiB0byBpbnRy b2R1Y2UgYSBuZXcgY29tbW9uIHN5c2NhbGwgZm9yIGl0Lgo+ID4+Cj4gPj4gVGhpcyBwYXRjaCBs ZXZlcmFnZXMgdGhlIGRlc2lnbiBvZiB1c2VyZmF1bHRmZCBhbmQgYWRkcyBtZW1waW5mZCBmb3Ig cGluCj4gPj4gdG8gYXZvaWQgbWVzc2luZyB1cCBtbV9zdHJ1Y3QuIEEgZmQgd2lsbCBiZSBnb3Qg YnkgbWVtcGluZmQsIHRoZW4gdXNlcgo+ID4+IHNwYWNlIGNhbiBkbyBwaW4vdW5waW4gcGFnZXMg YnkgaW9jdGxzIG9mIHRoaXMgZmQsIGFsbCBwaW5uZWQgcGFnZXMgdW5kZXIKPiA+PiBvbmUgZmls ZSB3aWxsIGJlIHVucGlubmVkIGluIGZpbGUgcmVsZWFzZSBwcm9jZXNzLiBMaWtlIHBpbiBwYWdl IGNhc2VzIGluCj4gPj4gb3RoZXIgcGxhY2VzLCBjYW5fZG9fbWxvY2sgaXMgdXNlZCB0byBjaGVj ayBwZXJtaXNzaW9uIGFuZCBpbnB1dAo+ID4+IHBhcmFtZXRlcnMuCj4gPiAKPiA+IAo+ID4gQ2Fu IHlvdSBkb2N1bWVudCB3aGF0IHRoZSBzeXNjYWxsIGRvZXM/Cj4gCj4gV2lsbCBhZGQgcmVsYXRl ZCBkb2N1bWVudCBpbiBEb2N1bWVudGF0aW9uL3ZtLgoKQSBtYW5wYWdlIGlzIGFsd2F5cyBnb29k LCBhbmQgd2lsbCBiZSByZXF1aXJlZCBldmVudHVhbGx5IDopCgp0aGFua3MsCgpncmVnIGstaApf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwppb21tdSBtYWls aW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5s aW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vaW9tbXU=