From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85768C43331 for ; Tue, 12 Nov 2019 16:26:09 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4CA5120679 for ; Tue, 12 Nov 2019 16:26:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cn+4OjrF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4CA5120679 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=No2M0NnO8ZZ48o/wDWnWbPTaCq7kvokp7/5813cxNHg=; b=cn+4OjrFPbsGeI IfylTDJfRzGwpYbPiF4WI0peP6umJuu0RtuCkS+RfDRrA69ystSAYYNVMOwvKObfZMKaW+PWoz/Ib cnqfKrFZ6bOVIPWX/8NA2+sNtPzaThncanWcq1ycWz4QMlWLJhXq8ykK7HCx8jakAYgS3Vit2Tnxs pzvUDW3SyD+Eg8bR1MHggICc3NQAXB+tDvnSsnujroK0bZWZoBkPbZVb5+TTFVKAV1IxVV8mNAnlv AMGnPr8i0b554N+74wnTeLtnAv/6hxsNAA/CbA43PB10Bg1ugqXVoT6XyA2j3yr9B2/NGHCzhkedZ BQFocEdK43ok3OkXMvKA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iUYzV-0002mR-W6; Tue, 12 Nov 2019 16:26:05 +0000 Received: from mx2.suse.de ([195.135.220.15] helo=mx1.suse.de) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iUYzS-0002lc-LS for linux-nvme@lists.infradead.org; Tue, 12 Nov 2019 16:26:04 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 810B5B281; Tue, 12 Nov 2019 16:25:59 +0000 (UTC) Subject: Re: [PATCH 2/2] nvme-pci: poll IO after batch submission for multi-mapping queue To: Ming Lei , Long Li References: <20191108035508.26395-1-ming.lei@redhat.com> <20191108035508.26395-3-ming.lei@redhat.com> <20191111204446.GA26028@lst.de> <20191112023920.GD15079@ming.t460p> From: Hannes Reinecke Openpgp: preference=signencrypt Autocrypt: addr=hare@suse.de; prefer-encrypt=mutual; keydata= mQINBE6KyREBEACwRN6XKClPtxPiABx5GW+Yr1snfhjzExxkTYaINHsWHlsLg13kiemsS6o7 qrc+XP8FmhcnCOts9e2jxZxtmpB652lxRB9jZE40mcSLvYLM7S6aH0WXKn8bOqpqOGJiY2bc 6qz6rJuqkOx3YNuUgiAxjuoYauEl8dg4bzex3KGkGRuxzRlC8APjHlwmsr+ETxOLBfUoRNuE b4nUtaseMPkNDwM4L9+n9cxpGbdwX0XwKFhlQMbG3rWA3YqQYWj1erKIPpgpfM64hwsdk9zZ QO1krgfULH4poPQFpl2+yVeEMXtsSou915jn/51rBelXeLq+cjuK5+B/JZUXPnNDoxOG3j3V VSZxkxLJ8RO1YamqZZbVP6jhDQ/bLcAI3EfjVbxhw9KWrh8MxTcmyJPn3QMMEp3wpVX9nSOQ tzG72Up/Py67VQe0x8fqmu7R4MmddSbyqgHrab/Nu+ak6g2RRn3QHXAQ7PQUq55BDtj85hd9 W2iBiROhkZ/R+Q14cJkWhzaThN1sZ1zsfBNW0Im8OVn/J8bQUaS0a/NhpXJWv6J1ttkX3S0c QUratRfX4D1viAwNgoS0Joq7xIQD+CfJTax7pPn9rT////hSqJYUoMXkEz5IcO+hptCH1HF3 qz77aA5njEBQrDRlslUBkCZ5P+QvZgJDy0C3xRGdg6ZVXEXJOQARAQABtCpIYW5uZXMgUmVp bmVja2UgKFN1U0UgTGFicykgPGhhcmVAc3VzZS5kZT6JAkEEEwECACsCGwMFCRLMAwAGCwkI BwMCBhUIAgkKCwQWAgMBAh4BAheABQJOisquAhkBAAoJEGz4yi9OyKjPOHoQAJLeLvr6JNHx GPcHXaJLHQiinz2QP0/wtsT8+hE26dLzxb7hgxLafj9XlAXOG3FhGd+ySlQ5wSbbjdxNjgsq FIjqQ88/Lk1NfnqG5aUTPmhEF+PzkPogEV7Pm5Q17ap22VK623MPaltEba+ly6/pGOODbKBH ak3gqa7Gro5YCQzNU0QVtMpWyeGF7xQK76DY/atvAtuVPBJHER+RPIF7iv5J3/GFIfdrM+wS BubFVDOibgM7UBnpa7aohZ9RgPkzJpzECsbmbttxYaiv8+EOwark4VjvOne8dRaj50qeyJH6 HLpBXZDJH5ZcYJPMgunghSqghgfuUsd5fHmjFr3hDb5EoqAfgiRMSDom7wLZ9TGtT6viDldv hfWaIOD5UhpNYxfNgH6Y102gtMmN4o2P6g3UbZK1diH13s9DA5vI2mO2krGz2c5BOBmcctE5 iS+JWiCizOqia5Op+B/tUNye/YIXSC4oMR++Fgt30OEafB8twxydMAE3HmY+foawCpGq06yM vAguLzvm7f6wAPesDAO9vxRNC5y7JeN4Kytl561ciTICmBR80Pdgs/Obj2DwM6dvHquQbQrU Op4XtD3eGUW4qgD99DrMXqCcSXX/uay9kOG+fQBfK39jkPKZEuEV2QdpE4Pry36SUGfohSNq xXW+bMc6P+irTT39VWFUJMcSuQINBE6KyREBEACvEJggkGC42huFAqJcOcLqnjK83t4TVwEn JRisbY/VdeZIHTGtcGLqsALDzk+bEAcZapguzfp7cySzvuR6Hyq7hKEjEHAZmI/3IDc9nbdh EgdCiFatah0XZ/p4vp7KAelYqbv8YF/ORLylAdLh9rzLR6yHFqVaR4WL4pl4kEWwFhNSHLxe 55G56/dxBuoj4RrFoX3ynerXfbp4dH2KArPc0NfoamqebuGNfEQmDbtnCGE5zKcR0zvmXsRp qU7+caufueZyLwjTU+y5p34U4PlOO2Q7/bdaPEdXfpgvSpWk1o3H36LvkPV/PGGDCLzaNn04 BdiiiPEHwoIjCXOAcR+4+eqM4TSwVpTn6SNgbHLjAhCwCDyggK+3qEGJph+WNtNU7uFfscSP k4jqlxc8P+hn9IqaMWaeX9nBEaiKffR7OKjMdtFFnBRSXiW/kOKuuRdeDjL5gWJjY+IpdafP KhjvUFtfSwGdrDUh3SvB5knSixE3qbxbhbNxmqDVzyzMwunFANujyyVizS31DnWC6tKzANkC k15CyeFC6sFFu+WpRxvC6fzQTLI5CRGAB6FAxz8Hu5rpNNZHsbYs9Vfr/BJuSUfRI/12eOCL IvxRPpmMOlcI4WDW3EDkzqNAXn5Onx/b0rFGFpM4GmSPriEJdBb4M4pSD6fN6Y/Jrng/Bdwk SQARAQABiQIlBBgBAgAPBQJOiskRAhsMBQkSzAMAAAoJEGz4yi9OyKjPgEwQAIP/gy/Xqc1q OpzfFScswk3CEoZWSqHxn/fZasa4IzkwhTUmukuIvRew+BzwvrTxhHcz9qQ8hX7iDPTZBcUt ovWPxz+3XfbGqE+q0JunlIsP4N+K/I10nyoGdoFpMFMfDnAiMUiUatHRf9Wsif/nT6oRiPNJ T0EbbeSyIYe+ZOMFfZBVGPqBCbe8YMI+JiZeez8L9JtegxQ6O3EMQ//1eoPJ5mv5lWXLFQfx f4rAcKseM8DE6xs1+1AIsSIG6H+EE3tVm+GdCkBaVAZo2VMVapx9k8RMSlW7vlGEQsHtI0FT c1XNOCGjaP4ITYUiOpfkh+N0nUZVRTxWnJqVPGZ2Nt7xCk7eoJWTSMWmodFlsKSgfblXVfdM 9qoNScM3u0b9iYYuw/ijZ7VtYXFuQdh0XMM/V6zFrLnnhNmg0pnK6hO1LUgZlrxHwLZk5X8F uD/0MCbPmsYUMHPuJd5dSLUFTlejVXIbKTSAMd0tDSP5Ms8Ds84z5eHreiy1ijatqRFWFJRp ZtWlhGRERnDH17PUXDglsOA08HCls0PHx8itYsjYCAyETlxlLApXWdVl9YVwbQpQ+i693t/Y PGu8jotn0++P19d3JwXW8t6TVvBIQ1dRZHx1IxGLMn+CkDJMOmHAUMWTAXX2rf5tUjas8/v2 azzYF4VRJsdl+d0MCaSy8mUh Message-ID: <8198fd99-6b47-7594-ba1c-4a15ffe25269@suse.de> Date: Tue, 12 Nov 2019 17:25:59 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20191112023920.GD15079@ming.t460p> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191112_082602_998965_C94A88C1 X-CRM114-Status: GOOD ( 21.60 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Keith Busch , Jens Axboe , Christoph Hellwig , "linux-nvme@lists.infradead.org" , Sagi Grimberg Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org T24gMTEvMTIvMTkgMzozOSBBTSwgTWluZyBMZWkgd3JvdGU6Cj4gT24gVHVlLCBOb3YgMTIsIDIw MTkgYXQgMTI6MzM6NTBBTSArMDAwMCwgTG9uZyBMaSB3cm90ZToKPj4+IEZyb206IENocmlzdG9w aCBIZWxsd2lnIDxoY2hAbHN0LmRlPgo+Pj4gU2VudDogTW9uZGF5LCBOb3ZlbWJlciAxMSwgMjAx OSAxMjo0NSBQTQo+Pj4gVG86IE1pbmcgTGVpIDxtaW5nLmxlaUByZWRoYXQuY29tPgo+Pj4gQ2M6 IGxpbnV4LW52bWVAbGlzdHMuaW5mcmFkZWFkLm9yZzsgS2VpdGggQnVzY2ggPGtidXNjaEBrZXJu ZWwub3JnPjsgSmVucwo+Pj4gQXhib2UgPGF4Ym9lQGZiLmNvbT47IENocmlzdG9waCBIZWxsd2ln IDxoY2hAbHN0LmRlPjsgU2FnaSBHcmltYmVyZwo+Pj4gPHNhZ2lAZ3JpbWJlcmcubWU+OyBMb25n IExpIDxsb25nbGlAbWljcm9zb2Z0LmNvbT4KPj4+IFN1YmplY3Q6IFJlOiBbUEFUQ0ggMi8yXSBu dm1lLXBjaTogcG9sbCBJTyBhZnRlciBiYXRjaCBzdWJtaXNzaW9uIGZvciBtdWx0aS0KPj4+IG1h cHBpbmcgcXVldWUKPj4+Cj4+PiBPbiBGcmksIE5vdiAwOCwgMjAxOSBhdCAxMTo1NTowOEFNICsw ODAwLCBNaW5nIExlaSB3cm90ZToKPj4+PiBmOWRkZTE4N2ZhOTIoIm52bWUtcGNpOiByZW1vdmUg Y3EgY2hlY2sgYWZ0ZXIgc3VibWlzc2lvbiIpIHJlbW92ZXMgY3EKPj4+PiBjaGVjayBhZnRlciBz dWJtaXNzaW9uLCB0aGlzIGNoYW5nZSBhY3R1YWxseSBjYXVzZXMgcGVyZm9ybWFuY2UKPj4+PiBy ZWdyZXNzaW9uIG9uIHNvbWUgTlZNZSBkcml2ZSBpbiB3aGljaCBzaW5nbGUgbnZtZXEgaGFuZGxl cyByZXF1ZXN0cwo+Pj4+IG9yaWdpbmF0ZWQgZnJvbSBtb3JlIHRoYW4gb25lIGJsay1tcSBzdyBx dWV1ZXMoY2FsbCBpdCBtdWx0aS1tYXBwaW5nCj4+Pj4gcXVldWUpLgo+Pj4KPj4+PiBGb2xsb3dz IHRlc3QgcmVzdWx0IGRvbmUgb24gQXp1cmUgTDgwc3YyIGd1ZXN0IHdpdGggTlZNZSBkcml2ZSgK Pj4+PiBNaWNyb3NvZnQgQ29ycG9yYXRpb24gRGV2aWNlIGIxMTEpLiBUaGlzIGd1ZXN0IGhhcyA4 MCBDUFVzIGFuZCAxMCBudW1hCj4+Pj4gbm9kZXMsIGFuZCBlYWNoIE5WTWUgZHJpdmUgc3VwcG9y dHMgOCBodyBxdWV1ZXMuCj4+Pgo+Pj4gSGF2ZSB5b3UgYWN0dWFsbHkgc2VlbiB0aGlzIG9uIGEg cmVhbCBudm1lIGRyaXZlIGFzIHdlbGw/Cj4+Pgo+Pj4gTm90ZSB0aGF0IGl0IGlzIGtpbmRhIHNp bGx5IHRvIGxpbWl0IHF1ZXVlcyBsaWtlIHRoYXQgaW4gVk1zLCBzbyBJIHJlYWxseSBkb24ndCB0 aGluawo+Pj4gd2Ugc2hvdWxkIG9wdGltaXplIHRoZSBkcml2ZXIgZm9yIHRoaXMgcGFydGljdWxh ciBjYXNlLgo+Pgo+PiBJIHRlc3RlZCBvbiBhbiBBenVyZSBMODBzX3YyIFZNIHdpdGggbmV3ZXIg U2Ftc3VuZyBQOTgzIE5WTWUgU1NEICh3aXRoIDMyIGhhcmR3YXJlIHF1ZXVlcykuIFRlc3RzIGFs c28gc2hvd2VkIHNvZnQgbG9ja3VwIHdoZW4gMzIgcXVldWVzIGFyZSBzaGFyZWQgYnkgODAgQ1BV cy4gCj4+Cj4gCj4gQlRXLCBkbyB5b3Ugc2VlIGlmIHRoaXMgc2ltcGxlIGNoYW5nZSBtYWtlcyBh IGRpZmZlcmVuY2U/Cj4gCj4+IFRoZSBpc3N1ZSB3aWxsIGxpa2VseSBzaG93IHVwIGlmIHRoZSBu dW1iZXIgb2YgTlZNZSBoYXJkd2FyZSBxdWV1ZXMgaXMgbGVzcyB0aGFuIHRoZSBudW1iZXIgb2Yg Q1BVcy4gSSB0aGluayB0aGlzIG1heSBiZSBhIGxpa2VseSBjb25maWd1cmF0aW9uIG9uIGEgdmVy eSBsYXJnZSBzeXN0ZW0uIChlLmcuIHRoZSBsYXJnZXN0IFZNIG9uIEF6dXJlIGhhcyA0MTYgY29y ZXMpCj4+Cj4gCj4gJ3RoZSBudW1iZXIgb2YgTlZNZSBoYXJkd2FyZSBxdWV1ZXMnIGFib3ZlIHNo b3VsZCBiZSB0aGUgbnVtYmVyIG9mIHNpbmdsZSBOVk1lIGRyaXZlLgo+IEkgYmVsaWV2ZSAzMiBo dyBxdWV1ZXMgaXMgY29tbW9uLCBhbHNvIHBvbGwgcXVldWVzIG1heSB0YWtlIHNldmVyYWwgZnJv bSB0aGUgdG90YWwgMzIuCj4gV2hlbiBpbnRlcnJ1cHQgaGFuZGxpbmcgb24gc2luZ2xlIENQVSBj b3JlIGNhbid0IGNhdGNoIHVwIHdpdGggTlZNZSdzIElPIGhhbmRsaW5nLAo+IHNvZnQgbG9ja3Vw IGNvdWxkIGJlIHRyaWdnZXJlZC4gT2YgY291cnNlLCB0aGVyZSBhcmUgbG90IGtpbmRzIG9mIHN1 cHBvcnRlZCBwcm9jZXNzb3JzCj4gYnkgTGludXguCj4gCkJ1dCB0aGVuIHdlIHNob3VsZCByYXRo ZXIgd29yayBvbiBlbGltaW5hdGluZyB0aGUgc29mdCBsb2NrdXAgaXRzZWxmLgpTd2l0Y2hpbmcg dG8gcG9sbGluZyBmb3IgY29tcGxldGlvbnMgb24gdGhlIHNhbWUgQ1BVIGlzbid0IGdvaW5nIHRv CmhlbHA7IHlvdSBqdXN0IHN0YWxsIGFsbCBvdGhlciBOVk1lJ3Mgd2hpY2ggbWlnaHQgYmUgd2Fp dGluZyBmb3IKaW50ZXJydXB0cyBhcnJpdmluZyBvbiB0aGlzIENQVS4KKE5pdHBpY2s6IHdoYXQg ZG9lcyBoYXBwZW4gd2l0aCB0aGUgaW50ZXJydXB0IGlmIHdlIGhhdmUgYSBtYXNrIG9mCnNldmVy YWwgQ1BVcz8gV2lsbCB0aGUgaW50ZXJydXB0IGRlbGl2ZXJlZCB0byBvbmUgQ1BVPwpUbyBhbGwg aW4gdGhlIG1hc2s/IEFuZCBpZiB0aGF0LCBob3cgZG8gdGhlIG90aGVyIENQVSBjb3JlcyBub3Rp Y2UgdGhhdApvbmUgaXMgd29ya2luZyBvbiB0aGF0IGludGVycnVwdD8gUXVlc3Rpb25zIC4uLikK CkNhbid0IHdlIGltcGxlbWVudCBibGtfcG9sbD8gT3IgbWF5YmUgZXZlbiB0aHJlYWRlZCBpbnRl cnJ1cHRzPwoKPiBBbHNvIHdoZW4gKG5yX252bWVfZHJpdmVzICogbnJfbnZtZV9od19xdWV1ZXMp ID4gbnJfY3B1X2NvcmVzLCBvbmUgc2FtZSBDUFUKPiBjYW4gYmUgYXNzaWduZWQgdG8gaGFuZGxl IG1vcmUgdGhhbiAxIG52bWUgSU8gcXVldWUgaW50ZXJydXB0IGZyb20gZGlmZmVyZW50Cj4gTlZN ZSBkcml2ZSwgdGhlIHNpdHVhdGlvbiBiZWNvbWVzIHdvcnNlLgo+IApUaGF0IGlzIGFyZ3VhYmx5 IGJhZDsgZXNwZWNpYWxseSBzbyBhcyB3ZSdyZSBkb2luZyBhdXRvbWF0aWMgaW50ZXJydXB0CmFm ZmluaXR5LgoKLS0gCkRyLiBIYW5uZXMgUmVpbmVja2UJCSAgICAgIFRlYW1sZWFkIFN0b3JhZ2Ug JiBOZXR3b3JraW5nCmhhcmVAc3VzZS5kZQkJCSAgICAgICAgICAgICAgICAgICs0OSA5MTEgNzQw NTMgNjg4ClNVU0UgU29mdHdhcmUgU29sdXRpb25zIEdlcm1hbnkgR21iSCwgTWF4ZmVsZHN0ci4g NSwgOTA0MDkgTsO8cm5iZXJnCkhSQiAyNDcxNjUgKEFHIE3DvG5jaGVuKSwgR0Y6IEZlbGl4IElt ZW5kw7ZyZmZlcgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KTGludXgtbnZtZSBtYWlsaW5nIGxpc3QKTGludXgtbnZtZUBsaXN0cy5pbmZyYWRlYWQub3Jn Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbnZtZQo=