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bh=n9ho7ZxUFjV5yAYuN8t5tarm5DyMHoZty06HftqxrjU=; b=ZHxMuhxWIewaCNhWDU6gr+9OGZRkSD2HtvdHFW5XJON6ceWBwj2feGHmO46t5nGyxTUgXv KBjUF0GZzatTy70r1re/YKhaXlY0WzcfePcvv2ejf20kWeVisiSwJagN7iwbwn003gMjh/ U9FMA364c6tmvV8jpah36uotBnvWtkI= 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-244-O94fTBLHNcOBCXemmv_D7Q-1; Thu, 24 Sep 2020 03:22:59 -0400 X-MC-Unique: O94fTBLHNcOBCXemmv_D7Q-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A38578015A5; Thu, 24 Sep 2020 07:22:58 +0000 (UTC) Received: from [10.72.13.193] (ovpn-13-193.pek2.redhat.com [10.72.13.193]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6CA421002C01; Thu, 24 Sep 2020 07:22:49 +0000 (UTC) Subject: Re: [PATCH 2/8] vhost: add helper to check if a vq has been setup To: Mike Christie , martin.petersen@oracle.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, mst@redhat.com, pbonzini@redhat.com, stefanha@redhat.com, virtualization@lists.linux-foundation.org References: <1600712588-9514-1-git-send-email-michael.christie@oracle.com> <1600712588-9514-3-git-send-email-michael.christie@oracle.com> <63094bae-1f26-c21e-9b3c-3a6aa99a7e24@oracle.com> From: Jason Wang Message-ID: Date: Thu, 24 Sep 2020 15:22:47 +0800 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: <63094bae-1f26-c21e-9b3c-3a6aa99a7e24@oracle.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization 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: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Ck9uIDIwMjAvOS8yNCDkuIrljYgzOjEyLCBNaWtlIENocmlzdGllIHdyb3RlOgo+IE9uIDkvMjEv MjAgOTowMiBQTSwgSmFzb24gV2FuZyB3cm90ZToKPj4gT24gMjAyMC85LzIyIOS4iuWNiDI6MjMs IE1pa2UgQ2hyaXN0aWUgd3JvdGU6Cj4+PiBUaGlzIGFkZHMgYSBoZWxwZXIgY2hlY2sgaWYgYSB2 cSBoYXMgYmVlbiBzZXR1cC4gVGhlIG5leHQgcGF0Y2hlcwo+Pj4gd2lsbCB1c2UgdGhpcyB3aGVu IHdlIG1vdmUgdGhlIHZob3N0IHNjc2kgY21kIHByZWFsbG9jYXRpb24gZnJvbSBwZXIKPj4+IHNl c3Npb24gdG8gcGVyIHZxLiBJbiB0aGUgcGVyIHZxIGNhc2UsIHdlIG9ubHkgd2FudCB0byBhbGxv Y2F0ZSBjbWRzCj4+PiBmb3IgdnFzIHRoYXQgaGF2ZSBhY3R1YWxseSBiZWVuIHNldHVwIGFuZCBu b3QgZm9yIGFsbCB0aGUgcG9zc2libGUKPj4+IHZxcy4KPj4+Cj4+PiBTaWduZWQtb2ZmLWJ5OiBN aWtlIENocmlzdGllIDxtaWNoYWVsLmNocmlzdGllQG9yYWNsZS5jb20+Cj4+PiAtLS0KPj4+ICDC oCBkcml2ZXJzL3Zob3N0L3Zob3N0LmMgfCA5ICsrKysrKysrKwo+Pj4gIMKgIGRyaXZlcnMvdmhv c3Qvdmhvc3QuaCB8IDEgKwo+Pj4gIMKgIDIgZmlsZXMgY2hhbmdlZCwgMTAgaW5zZXJ0aW9ucygr KQo+Pj4KPj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3Zob3N0L3Zob3N0LmMgYi9kcml2ZXJzL3Zo b3N0L3Zob3N0LmMKPj4+IGluZGV4IGI0NTUxOWMuLjVkZDllYjEgMTAwNjQ0Cj4+PiAtLS0gYS9k cml2ZXJzL3Zob3N0L3Zob3N0LmMKPj4+ICsrKyBiL2RyaXZlcnMvdmhvc3Qvdmhvc3QuYwo+Pj4g QEAgLTMwNSw2ICszMDUsMTUgQEAgc3RhdGljIHZvaWQgdmhvc3RfdnJpbmdfY2FsbF9yZXNldChz dHJ1Y3Qgdmhvc3RfdnJpbmdfY2FsbCAqY2FsbF9jdHgpCj4+PiAgwqDCoMKgwqDCoCBzcGluX2xv Y2tfaW5pdCgmY2FsbF9jdHgtPmN0eF9sb2NrKTsKPj4+ICDCoCB9Cj4+PiAgwqAgK2Jvb2wgdmhv c3RfdnFfaXNfc2V0dXAoc3RydWN0IHZob3N0X3ZpcnRxdWV1ZSAqdnEpCj4+PiArewo+Pj4gK8Kg wqDCoCBpZiAodnEtPmF2YWlsICYmIHZxLT5kZXNjICYmIHZxLT51c2VkICYmIHZob3N0X3ZxX2Fj Y2Vzc19vayh2cSkpCj4+PiArwqDCoMKgwqDCoMKgwqAgcmV0dXJuIHRydWU7Cj4+PiArwqDCoMKg IGVsc2UKPj4+ICvCoMKgwqDCoMKgwqDCoCByZXR1cm4gZmFsc2U7Cj4+PiArfQo+Pj4gK0VYUE9S VF9TWU1CT0xfR1BMKHZob3N0X3ZxX2lzX3NldHVwKTsKPj4KPj4gVGhpcyBpcyBwcm9iYWJseSBv ayBidXQgSSB3b25kZXIgbWF5YmUgd2Ugc2hvdWxkIGhhdmUgc29tZXRoaW5nIGxpa2Ugd2hhdCB2 RFBBIGRpZCAoVkhPU1RfU0VUX1ZSSU5HX0VOQUJMRSkgdG8gbWF0Y2ggdmlydGlvIDEuMCBkZXZp Y2UgZGVmaW5pdGlvbi4KPiBJdCBsb29rcyBsaWtlIEkgY2FuIG1ha2UgdGhhdCB3b3JrLiBTb21l IHF1ZXN0aW9uczoKPgo+IDEuIERvIHlvdSBtZWFuIGEgZ2VuZXJpYyBWSE9TVF9TRVRfVlJJTkdf RU5BQkxFIG9yIGEgU0NTSSBzcGVjaWZpYyBvbmUgVkhPU1RfU0NTSV9TRVRfVlJJTkdfRU5BQkxF PwoKCkl0IHdvdWxkIGJlIGJldHRlciBpZiB3ZSBjYW4gbWFrZSBpdCBnZW5lcmljLgoKCj4KPiAy LiBJIGNhbiBzZWUgdGhlIFZIT1NUX1ZEUEFfU0VUX1ZSSU5HX0VOQUJMRSBrZXJuZWwgY29kZSBh bmQgdGhlIHZob3N0X3NldF92cmluZ19lbmFibGUgcWVtdSBjb2RlLCBzbyBJIGhhdmUgYW4gaWRl YSBvZiBob3cgaXQgc2hvdWxkIHdvcmsgZm9yIHZob3N0IHNjc2kuIEhvd2V2ZXIsIEknbSBub3Qg c3VyZSB0aGUgcmVxdWlyZW1lbnRzIGZvciBhIGdlbmVyaWMgVkhPU1RfU0VUX1ZSSU5HX0VOQUJM RSBpZiB0aGF0IGlzIHdoYXQgeW91IG1lYW50LiBJIGNvdWxkIG5vdCBmaW5kIGl0IGluIHRoZSBz cGVjIGVpdGhlci4gQ291bGQgeW91IHNlbmQgbWUgYSBwb2ludGVyIHRvIHRoZSBzZWN0aW9uPwoK CkluIHRoZSBzcGVjLCBmb3IgUENJLCBpdCdzIHRoZSBxdWV1ZV9lbmFibGUgZm9yIG1vZGVybiBk ZXZpY2UuCgoKPgo+IEZvciBleGFtcGxlLCBmb3Igdmhvc3QtbmV0IHdlIHNlZW0gdG8gZW5hYmxl IGEgZGV2aWNlIGluIHRoZSBWSE9TVF9ORVRfU0VUX0JBQ0tFTkQgaW9jdGwsIHNvIEknbSBub3Qg c3VyZSB3aGF0IGJlaGF2aW9yIHNob3VsZCBiZSBvciBuZWVkcyB0byBiZSBpbXBsZW1lbnRlZCBm b3IgbmV0IGFuZCB2c29jay4KCgpZZXMsIGJ1dCBWSE9TVF9ORVRfU0VUX0JBQ0tFTkQgaXMgZm9y IHRoZSB3aG9sZSBkZXZpY2Ugbm90IGEgc3BlY2lmaWMgCnZpcnRxdWV1ZS4KCgpUaGFua3MKCgo+ CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFs aXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlv bi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8v dmlydHVhbGl6YXRpb24=