From mboxrd@z Thu Jan 1 00:00:00 1970 From: Koichiro Den Subject: Re: [PATCH net] Revert "vhost: cache used event for better performance" Date: Sun, 13 Aug 2017 23:11:00 +0900 Message-ID: <1502633460.3547.1.camel@klaipeden.com> References: <1501056197-3368-1-git-send-email-jasowang@redhat.com> <20170726155435-mutt-send-email-mst@kernel.org> <117542fc-eef9-c043-7c9e-daafceb7db4e@redhat.com> <6b3a9a98-c095-1729-3528-dd521f136797@redhat.com> <20170726190745-mutt-send-email-mst@kernel.org> <1501396011.21001.11.camel@klaipeden.com> <6698b85c-18f4-17e6-db70-7708692fb761@redhat.com> <20170809073422-mutt-send-email-mst@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org To: "Michael S. Tsirkin" , Jason Wang Return-path: In-Reply-To: <20170809073422-mutt-send-email-mst@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: netdev.vger.kernel.org VGhhbmtzIGZvciB5b3VyIGNvbW1lbnRzLCBNaWNoYWVsIGFuZCBKYXNvbi4gQW5kIEknbSBzb3Jy eSBhYm91dCBsYXRlIHJlc3BvbnNlLgpUbyBiZSBob25lc3QsIEkgYW0gb24gYSBzdW1tZXIgdmFj YXRpb24gdW50aWwgbmV4dCBUdWVzZGF5LgoKSSBub3RpY2VkIHRoYXQgd2hhdCBJIHdyb3RlIHdh cyBub3Qgc3VmZmljaWVudC4gUmVnYXJkbGVzcyBvZiBjYWNoaW5nIG1lY2hhbmlzbQpleGlzdGVu Y2UsIHRoZSAiZXZlbnQiIGNvdWxkIGxlZ2l0aW1hdGVseSBiZSBhdCBhbnkgcG9pbnQgb3V0IG9m IHRoZSBsYXRlc3QKaW50ZXJ2YWwsIHdoaWNoIHZob3N0X25vdGlmeSBjaGVja3MgaXQgYWdhaW5z dCwgbWVhbmluZyB0aGF0IGlmIGl0J3Mgb3V0IG9mIHRoZQppbnRlcnZhbCB3ZSBjYW5ub3QgZGlz dGluZ3Vpc2ggd2hldGhlciBvciBub3QgaXQgbGFncyBiZWhpbmQgb3IgaGFzIGEgbGVhZC7CoEFu ZAppdCBzZWVtcyB0byBjb25mb3JtIHRvIHRoZSBzcGVjLiBUaGFua3MgZm9yIGxlYWRpbmcgbWUg dG8gdGhlIHNwZWMuIFRoZSBjb3JuZXIKY2FzZSBJIHBvaW50IG91dCBoZXJlIGlzOgooMCkgZXZl bnQgaWR4IGZlYXR1cmUgdHVybmVkIG9uICsgVFggbmFwaSB0dXJuZWQgb2ZmCi0+ICgxKSBndWVz dC1zaWRlIFRYIHRyYWZmaWMgYnVyc3Rpbmcgb2NjdXJzIGFuZCBkZWxheWVkIGNhbGxiYWNrIHNl dAotPiAoMikgc29tZSBpbnRlcnJ1cHRpb24gdHJpZ2dlcnMgc2tiX3htaXRfZG9uZQotPiAoMykg Z3Vlc3Qtc2lkZSBtb2Rlc3QgdHJhZmZpYyBtYWtlcyB0aGUgaW50ZXJ2YWwgcHJvY2VlZCB0byB1 bmJvdW5kZWQgZXh0ZW50CndpdGhvdXQgdXBkYXRpbmcgImV2ZW50IiBzaW5jZSBOT19JTlRFUlJV UFQgY29udGludWVzIHRvIGJlIHNldCBvbiBpdHMgc2hhZG93CmZsYWcuCgpJTUhPLMKgaWYgeW91 IHBsYW4gdG8gbWFrZSBUWCBuYXBpIHRoZSBvbmx5IGNob2ljZSwgZG9pbmcgdGhpcyBzb3J0IG9m Cm9wdGltaXNhdGlvbiBiZWZvcmVoYW5kIHNlZW1zIGxpa2VseSB0byBiZSBpbiB2YWluLgoKU28s IGlmIHRoZSBub25lLVRYIG5hcGkgY2FzZSBjb250aW51ZXMgdG8gY29leGlzdCwgd2hhdCBJIHdv dWxkIGxpa2UgdG8gc3VnZ2VzdAppcyBub3QganVzdCB0aGUgc29ydCBvZiBteSBsYXN0IGVtYWls LCBidXQgbGlrZSBtYWtpbmcgbWF4aW11bSBzdGFsZW5lc3Mgb2YKImV2ZW50IiBsZXNzIHRoYW4g b3IgZXF1YWwgdG8gdnEubnVtLCBhbmQgYWZ0ZXJ3YXJkIGNhY2hpbmcgc3VnZ2VzdGlvbi4KT3Ro ZXJ3aXNlLCBJIGd1ZXNzIEkgc2hvdWxkIG5vdCByZXBvc3QgbXkgbGFzdCBlbWFpbCBzaW5jZSBp dCB3b3VsZCBtYWtlIG1hdHRlcnMKIHRvbyBjb21wbGljYXRlZCBldmVuIHRob3VnaCBpdCB3aWxs IHNvb24gYmUgcmVtb3ZlZCB3aGVuIFRYLW5hcGkgYmVjb21lcyB0aGUKb25seSBjaG9pY2UuCgpU aGFua3MhCgoKT24gV2VkLCAyMDE3LTA4LTA5IGF0IDA3OjM3ICswMzAwLCBNaWNoYWVsIFMuIFRz aXJraW4gd3JvdGU6Cj4gT24gV2VkLCBBdWcgMDksIDIwMTcgYXQgMTA6Mzg6MTBBTSArMDgwMCwg SmFzb24gV2FuZyB3cm90ZToKPiA+IEkgdGhpbmsgZG9uJ3QgdGhpbmsgY3VycmVudCBjb2RlIGNh biB3b3JrIHdlbGwgaWYgdnEubnVtIGlzIGdyYXRlciB0aGFuCj4gPiAyXjE1LiBTaW5jZSBhbGwg Y2FjaGVkIGlkeCBpcyB1MTYuIFRoaXMgbG9va3MgbGlrZSBhIGJ1ZyB3aGljaCBuZWVkcyB0byBi ZQo+ID4gZml4ZWQuCj4gCj4gVGhhdCdzIGEgbGltaXRhdGlvbiBvZiB2aXJ0aW8gMS4wLgo+IAo+ ID4gPiAqIGVsc2UgaWYgdGhlIGludGVydmFsIG9mIHZxLm51bSBpcyBbMl4xNSwgMl4xNik6Cj4g PiA+IHRoZSBsb2dpYyBpbiB0aGUgb3JpZ2luYWwgcGF0Y2ggKDgwOWVjYjliY2E2YTkpIHN1ZmZp Y2VzCj4gPiA+ICogZWxzZSAoPSBsZXNzIHRoYW4gMl4xNSkgKG9wdGlvbmFsKToKPiA+ID4gY2hl Y2tpbmcgb25seSAodnJpbmdfbmVlZF9ldmVudCh2cS0+bGFzdF91c2VkX2V2ZW50LCBuZXcgKyB2 cS0+bnVtLCBuZXcpCj4gPiA+IHdvdWxkIHN1ZmZpY2UuCj4gPiA+IAo+ID4gPiBBbSBJIG1pc3Np bmcgc29tZXRoaW5nLCBvciBpcyB0aGlzIGlycmVsZXZhbnQ/Cj4gCj4gQ291bGQgeW91IHBscyBy ZXBvc3QgdGhlIHN1Z2dlc3Rpb24gY29weWluZyB2aXJ0aW8tZGV2IG1haWxpbmcgbGlzdAo+IChz dWJzY3JpYmVyIG9ubHksIHNvcnJ5IGFib3V0IHRoYXQsIGJ1dCBob3N0L2d1ZXN0IEFCSSBkaXNj dXNzaW9ucwo+IG5lZWQgdG8gY29weSB0aGF0IGxpc3QpPwo+IAo+ID4gTG9va3Mgbm90LCBJIHRo aW5rIHRoaXMgbWF5IHdvcmsuIExldCBtZSBkbyBzb21lIHRlc3QuCj4gPiAKPiA+IFRoYW5rcwo+ IAo+IEkgdGhpbmsgdGhhdCBhdCB0aGlzIHBvaW50IGl0J3MgcHJ1ZGVudCB0byBhZGQgYSBmZWF0 dXJlIGJpdAo+IGFzIHRoZSB2aXJ0aW8gc3BlYyBkb2VzIG5vdCByZXF1aXJlIHRvIG5ldmVyIG1v dmUgdGhlIGV2ZW50IGluZGV4IGJhY2suCj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6 YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5k YXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=