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: Mon, 14 Aug 2017 01:12:26 +0900 Message-ID: <1502640746.3547.3.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> <1502633460.3547.1.camel@klaipeden.com> 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: <1502633460.3547.1.camel@klaipeden.com> 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 U29ycnkgSSBtaXN0YWtlbmx5IGZvY3VzZWQgb24gTkVUIGNhc2UsIHBsZWFzZSBwYXNzIGl0IG92 ZXIuIEkgd2lsbCBkbyBhbnkKcmVsZXZhbnQgc3VnZ2VzdGlvbiBpbiBwYXRjaC1iYXNlZCB3YXku IFRoYW5rcy4KCk9uIFN1biwgMjAxNy0wOC0xMyBhdCAyMzoxMSArMDkwMCwgS29pY2hpcm8gRGVu IHdyb3RlOgo+IFRoYW5rcyBmb3IgeW91ciBjb21tZW50cywgTWljaGFlbCBhbmQgSmFzb24uIEFu ZCBJJ20gc29ycnkgYWJvdXQgbGF0ZQo+IHJlc3BvbnNlLgo+IFRvIGJlIGhvbmVzdCwgSSBhbSBv biBhIHN1bW1lciB2YWNhdGlvbiB1bnRpbCBuZXh0IFR1ZXNkYXkuCj4gCj4gSSBub3RpY2VkIHRo YXQgd2hhdCBJIHdyb3RlIHdhcyBub3Qgc3VmZmljaWVudC4gUmVnYXJkbGVzcyBvZiBjYWNoaW5n Cj4gbWVjaGFuaXNtCj4gZXhpc3RlbmNlLCB0aGUgImV2ZW50IiBjb3VsZCBsZWdpdGltYXRlbHkg YmUgYXQgYW55IHBvaW50IG91dCBvZiB0aGUgbGF0ZXN0Cj4gaW50ZXJ2YWwsIHdoaWNoIHZob3N0 X25vdGlmeSBjaGVja3MgaXQgYWdhaW5zdCwgbWVhbmluZyB0aGF0IGlmIGl0J3Mgb3V0IG9mCj4g dGhlCj4gaW50ZXJ2YWwgd2UgY2Fubm90IGRpc3Rpbmd1aXNoIHdoZXRoZXIgb3Igbm90IGl0IGxh Z3MgYmVoaW5kIG9yIGhhcyBhCj4gbGVhZC7CoEFuZAo+IGl0IHNlZW1zIHRvIGNvbmZvcm0gdG8g dGhlIHNwZWMuIFRoYW5rcyBmb3IgbGVhZGluZyBtZSB0byB0aGUgc3BlYy4gVGhlIGNvcm5lcgo+ IGNhc2UgSSBwb2ludCBvdXQgaGVyZSBpczoKPiAoMCkgZXZlbnQgaWR4IGZlYXR1cmUgdHVybmVk IG9uICsgVFggbmFwaSB0dXJuZWQgb2ZmCj4gLT4gKDEpIGd1ZXN0LXNpZGUgVFggdHJhZmZpYyBi dXJzdGluZyBvY2N1cnMgYW5kIGRlbGF5ZWQgY2FsbGJhY2sgc2V0Cj4gLT4gKDIpIHNvbWUgaW50 ZXJydXB0aW9uIHRyaWdnZXJzIHNrYl94bWl0X2RvbmUKPiAtPiAoMykgZ3Vlc3Qtc2lkZSBtb2Rl c3QgdHJhZmZpYyBtYWtlcyB0aGUgaW50ZXJ2YWwgcHJvY2VlZCB0byB1bmJvdW5kZWQKPiBleHRl bnQKPiB3aXRob3V0IHVwZGF0aW5nICJldmVudCIgc2luY2UgTk9fSU5URVJSVVBUIGNvbnRpbnVl cyB0byBiZSBzZXQgb24gaXRzIHNoYWRvdwo+IGZsYWcuCj4gCj4gSU1ITyzCoGlmIHlvdSBwbGFu IHRvIG1ha2UgVFggbmFwaSB0aGUgb25seSBjaG9pY2UsIGRvaW5nIHRoaXMgc29ydCBvZgo+IG9w dGltaXNhdGlvbiBiZWZvcmVoYW5kIHNlZW1zIGxpa2VseSB0byBiZSBpbiB2YWluLgo+IAo+IFNv LCBpZiB0aGUgbm9uZS1UWCBuYXBpIGNhc2UgY29udGludWVzIHRvIGNvZXhpc3QsIHdoYXQgSSB3 b3VsZCBsaWtlIHRvCj4gc3VnZ2VzdAo+IGlzIG5vdCBqdXN0IHRoZSBzb3J0IG9mIG15IGxhc3Qg ZW1haWwsIGJ1dCBsaWtlIG1ha2luZyBtYXhpbXVtIHN0YWxlbmVzcyBvZgo+ICJldmVudCIgbGVz cyB0aGFuIG9yIGVxdWFsIHRvIHZxLm51bSwgYW5kIGFmdGVyd2FyZCBjYWNoaW5nIHN1Z2dlc3Rp b24uCj4gT3RoZXJ3aXNlLCBJIGd1ZXNzIEkgc2hvdWxkIG5vdCByZXBvc3QgbXkgbGFzdCBlbWFp bCBzaW5jZSBpdCB3b3VsZCBtYWtlCj4gbWF0dGVycwo+IMKgdG9vIGNvbXBsaWNhdGVkIGV2ZW4g dGhvdWdoIGl0IHdpbGwgc29vbiBiZSByZW1vdmVkIHdoZW4gVFgtbmFwaSBiZWNvbWVzIHRoZQo+ IG9ubHkgY2hvaWNlLgo+IAo+IFRoYW5rcyEKPiAKPiAKPiBPbiBXZWQsIDIwMTctMDgtMDkgYXQg MDc6MzcgKzAzMDAsIE1pY2hhZWwgUy4gVHNpcmtpbiB3cm90ZToKPiA+IE9uIFdlZCwgQXVnIDA5 LCAyMDE3IGF0IDEwOjM4OjEwQU0gKzA4MDAsIEphc29uIFdhbmcgd3JvdGU6Cj4gPiA+IEkgdGhp bmsgZG9uJ3QgdGhpbmsgY3VycmVudCBjb2RlIGNhbiB3b3JrIHdlbGwgaWYgdnEubnVtIGlzIGdy YXRlciB0aGFuCj4gPiA+IDJeMTUuIFNpbmNlIGFsbCBjYWNoZWQgaWR4IGlzIHUxNi4gVGhpcyBs b29rcyBsaWtlIGEgYnVnIHdoaWNoIG5lZWRzIHRvIGJlCj4gPiA+IGZpeGVkLgo+ID4gCj4gPiBU aGF0J3MgYSBsaW1pdGF0aW9uIG9mIHZpcnRpbyAxLjAuCj4gPiAKPiA+ID4gPiAqIGVsc2UgaWYg dGhlIGludGVydmFsIG9mIHZxLm51bSBpcyBbMl4xNSwgMl4xNik6Cj4gPiA+ID4gdGhlIGxvZ2lj IGluIHRoZSBvcmlnaW5hbCBwYXRjaCAoODA5ZWNiOWJjYTZhOSkgc3VmZmljZXMKPiA+ID4gPiAq IGVsc2UgKD0gbGVzcyB0aGFuIDJeMTUpIChvcHRpb25hbCk6Cj4gPiA+ID4gY2hlY2tpbmcgb25s eSAodnJpbmdfbmVlZF9ldmVudCh2cS0+bGFzdF91c2VkX2V2ZW50LCBuZXcgKyB2cS0+bnVtLCBu ZXcpCj4gPiA+ID4gd291bGQgc3VmZmljZS4KPiA+ID4gPiAKPiA+ID4gPiBBbSBJIG1pc3Npbmcg c29tZXRoaW5nLCBvciBpcyB0aGlzIGlycmVsZXZhbnQ/Cj4gPiAKPiA+IENvdWxkIHlvdSBwbHMg cmVwb3N0IHRoZSBzdWdnZXN0aW9uIGNvcHlpbmcgdmlydGlvLWRldiBtYWlsaW5nIGxpc3QKPiA+ IChzdWJzY3JpYmVyIG9ubHksIHNvcnJ5IGFib3V0IHRoYXQsIGJ1dCBob3N0L2d1ZXN0IEFCSSBk aXNjdXNzaW9ucwo+ID4gbmVlZCB0byBjb3B5IHRoYXQgbGlzdCk/Cj4gPiAKPiA+ID4gTG9va3Mg bm90LCBJIHRoaW5rIHRoaXMgbWF5IHdvcmsuIExldCBtZSBkbyBzb21lIHRlc3QuCj4gPiA+IAo+ ID4gPiBUaGFua3MKPiA+IAo+ID4gSSB0aGluayB0aGF0IGF0IHRoaXMgcG9pbnQgaXQncyBwcnVk ZW50IHRvIGFkZCBhIGZlYXR1cmUgYml0Cj4gPiBhcyB0aGUgdmlydGlvIHNwZWMgZG9lcyBub3Qg cmVxdWlyZSB0byBuZXZlciBtb3ZlIHRoZSBldmVudCBpbmRleCBiYWNrLgo+ID4gCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBt YWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0 cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6 YXRpb24=