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=-15.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 9E7D2C433E0 for ; Tue, 26 Jan 2021 08:17:53 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 0D2CF206FB for ; Tue, 26 Jan 2021 08:17:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0D2CF206FB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id ADA48851CB; Tue, 26 Jan 2021 08:17:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id e19bEqop3dXK; Tue, 26 Jan 2021 08:17:50 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 14D5D8511B; Tue, 26 Jan 2021 08:17:50 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 01A42C08A1; Tue, 26 Jan 2021 08:17:50 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 05FBEC013A for ; Tue, 26 Jan 2021 08:17:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id EFAAC86F81 for ; Tue, 26 Jan 2021 08:17:48 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bt5p2gdV7T1B for ; Tue, 26 Jan 2021 08:17:48 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by hemlock.osuosl.org (Postfix) with ESMTPS id 4388B86DF0 for ; Tue, 26 Jan 2021 08:17:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611649067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kElVC+jkHLstLVhvoAPiIFDGEp54B3rvncUWM43dOQw=; b=OCtC+2MpTfjXjitTU4ANCuSm1t64r+nIEdjCUvL6otSskAnR052jbM9sVQqbQzvKlyr2AP NmhXa+cnWfmIxHL3/1KLjruu57BDVI02/d6tx0ouPC4X+/KSGi1CinKK6v2bAKn2Pb8BcY pjjDiSAo9HT9msdIJqyy+HvZsqxymW8= 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-140-kXrSMgh9PS6y4-sMWhagKQ-1; Tue, 26 Jan 2021 03:17:43 -0500 X-MC-Unique: kXrSMgh9PS6y4-sMWhagKQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 07CAD107ACF6; Tue, 26 Jan 2021 08:17:41 +0000 (UTC) Received: from [10.72.12.70] (ovpn-12-70.pek2.redhat.com [10.72.12.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id E668E1A839; Tue, 26 Jan 2021 08:17:29 +0000 (UTC) Subject: Re: [RFC v3 11/11] vduse: Introduce a workqueue for irq injection To: Xie Yongji , mst@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, parav@nvidia.com, bob.liu@oracle.com, hch@infradead.org, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net References: <20210119045920.447-1-xieyongji@bytedance.com> <20210119050756.600-1-xieyongji@bytedance.com> <20210119050756.600-5-xieyongji@bytedance.com> From: Jason Wang Message-ID: <9cacd59d-1063-7a1f-9831-8728eb1d1c15@redhat.com> Date: Tue, 26 Jan 2021 16:17:28 +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: <20210119050756.600-5-xieyongji@bytedance.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Cc: linux-aio@kvack.org, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org 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" Ck9uIDIwMjEvMS8xOSDkuIvljYgxOjA3LCBYaWUgWW9uZ2ppIHdyb3RlOgo+IFRoaXMgcGF0Y2gg aW50cm9kdWNlcyBhIGRlZGljYXRlZCB3b3JrcXVldWUgZm9yIGlycSBpbmplY3Rpb24KPiBzbyB0 aGF0IHdlIGFyZSBhYmxlIHRvIGRvIHNvbWUgcGVyZm9ybWFuY2UgdHVuaW5nIGZvciBpdC4KPgo+ IFNpZ25lZC1vZmYtYnk6IFhpZSBZb25namkgPHhpZXlvbmdqaUBieXRlZGFuY2UuY29tPgoKCklm IHdlIHdhbnQgdGhlIHNwbGl0IGxpa2UgdGhpcy4KCkl0IG1pZ2h0IGJlIGJldHRlciB0bzoKCjEp IGltcGxlbWVudCBhIHNpbXBsZSBpcnEgaW5qZWN0aW9uIG9uIHRoZSBpb2N0bCBjb250ZXh0IGlu IHBhdGNoIDgKMikgYWRkIHRoZSBkZWRpY2F0ZWQgd29ya3F1ZXVlIGluamVjdGlvbiBpbiB0aGlz IHBhdGNoCgpTaW5jZSBteSB1bmRlcnN0YW5kaW5nIGlzIHRoYXQKCjEpIHRoZSBmdW5jdGlvbiBs b29rcyBtb3JlIGlzb2xhdGVkIGZvciByZWFkZXJzCjIpIHRoZSBkaWZmZXJlbmNlIGJldHdlZW4g c3lzY3RsIHZzIHdvcmtxdWV1ZSBzaG91bGQgYmUgbW9yZSBvYnZpb3VzIAp0aGFuIHN5c3RlbSB3 cSB2cyBkZWRpY2F0ZWQgd3EKMykgYSBjaGFuY2UgdG8gZGVzY3JpYmUgd2h5IHdvcmtxdWV1ZSBp cyBuZWVkZWQgaW4gdGhlIGNvbW1pdCBsb2cgaW4gCnRoaXMgcGF0Y2gKClRoYW5rcwoKCj4gLS0t Cj4gICBkcml2ZXJzL3ZkcGEvdmRwYV91c2VyL2V2ZW50ZmQuYyB8IDEwICsrKysrKysrKy0KPiAg IDEgZmlsZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKPgo+IGRpZmYg LS1naXQgYS9kcml2ZXJzL3ZkcGEvdmRwYV91c2VyL2V2ZW50ZmQuYyBiL2RyaXZlcnMvdmRwYS92 ZHBhX3VzZXIvZXZlbnRmZC5jCj4gaW5kZXggZGJmZmRkYjA4OTA4Li5jYWY3ZDhkNjhhYzAgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy92ZHBhL3ZkcGFfdXNlci9ldmVudGZkLmMKPiArKysgYi9kcml2 ZXJzL3ZkcGEvdmRwYV91c2VyL2V2ZW50ZmQuYwo+IEBAIC0xOCw2ICsxOCw3IEBACj4gICAjaW5j bHVkZSAiZXZlbnRmZC5oIgo+ICAgCj4gICBzdGF0aWMgc3RydWN0IHdvcmtxdWV1ZV9zdHJ1Y3Qg KnZkdXNlX2lycWZkX2NsZWFudXBfd3E7Cj4gK3N0YXRpYyBzdHJ1Y3Qgd29ya3F1ZXVlX3N0cnVj dCAqdmR1c2VfaXJxX3dxOwo+ICAgCj4gICBzdGF0aWMgdm9pZCB2ZHVzZV92aXJxZmRfc2h1dGRv d24oc3RydWN0IHdvcmtfc3RydWN0ICp3b3JrKQo+ICAgewo+IEBAIC01Nyw3ICs1OCw3IEBAIHN0 YXRpYyBpbnQgdmR1c2VfdmlycWZkX3dha2V1cCh3YWl0X3F1ZXVlX2VudHJ5X3QgKndhaXQsIHVu c2lnbmVkIGludCBtb2RlLAo+ICAgCV9fcG9sbF90IGZsYWdzID0ga2V5X3RvX3BvbGwoa2V5KTsK PiAgIAo+ICAgCWlmIChmbGFncyAmIEVQT0xMSU4pCj4gLQkJc2NoZWR1bGVfd29yaygmdmlycWZk LT5pbmplY3QpOwo+ICsJCXF1ZXVlX3dvcmsodmR1c2VfaXJxX3dxLCAmdmlycWZkLT5pbmplY3Qp Owo+ICAgCj4gICAJaWYgKGZsYWdzICYgRVBPTExIVVApIHsKPiAgIAkJc3Bpbl9sb2NrKCZ2cS0+ aXJxX2xvY2spOwo+IEBAIC0xNjUsMTEgKzE2NiwxOCBAQCBpbnQgdmR1c2VfdmlycWZkX2luaXQo dm9pZCkKPiAgIAlpZiAoIXZkdXNlX2lycWZkX2NsZWFudXBfd3EpCj4gICAJCXJldHVybiAtRU5P TUVNOwo+ICAgCj4gKwl2ZHVzZV9pcnFfd3EgPSBhbGxvY193b3JrcXVldWUoInZkdXNlLWlycSIs IFdRX1NZU0ZTIHwgV1FfVU5CT1VORCwgMCk7Cj4gKwlpZiAoIXZkdXNlX2lycV93cSkgewo+ICsJ CWRlc3Ryb3lfd29ya3F1ZXVlKHZkdXNlX2lycWZkX2NsZWFudXBfd3EpOwo+ICsJCXJldHVybiAt RU5PTUVNOwo+ICsJfQo+ICsKPiAgIAlyZXR1cm4gMDsKPiAgIH0KPiAgIAo+ICAgdm9pZCB2ZHVz ZV92aXJxZmRfZXhpdCh2b2lkKQo+ICAgewo+ICsJZGVzdHJveV93b3JrcXVldWUodmR1c2VfaXJx X3dxKTsKPiAgIAlkZXN0cm95X3dvcmtxdWV1ZSh2ZHVzZV9pcnFmZF9jbGVhbnVwX3dxKTsKPiAg IH0KPiAgIAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K VmlydHVhbGl6YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxpc3RzLmxpbnV4LWZv dW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xp c3RpbmZvL3ZpcnR1YWxpemF0aW9u