From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [PATCH] xsplice: Don't perform multiple operations on same payload once work is scheduled. Date: Thu, 28 Apr 2016 22:15:43 -0400 Message-ID: <20160429021543.GD9673@char.us.oracle.com> References: <20160428114710.GE20738@citrix.com> <1461867412-3635-1-git-send-email-konrad.wilk@oracle.com> <57229B7A.7030306@citrix.com> <20160429015212.GA12857@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1avxyI-0002CG-Vn for xen-devel@lists.xenproject.org; Fri, 29 Apr 2016 02:15:59 +0000 Content-Disposition: inline In-Reply-To: <20160429015212.GA12857@localhost.localdomain> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Konrad Rzeszutek Wilk Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Ross Lagerwall , Jan Beulich , xen-devel@lists.xenproject.org, Roger Pau =?iso-8859-1?Q?Monn=E9?= List-Id: xen-devel@lists.xenproject.org T24gVGh1LCBBcHIgMjgsIDIwMTYgYXQgMDk6NTI6MTRQTSAtMDQwMCwgS29ucmFkIFJ6ZXN6dXRl ayBXaWxrIHdyb3RlOgo+IE9uIEZyaSwgQXByIDI5LCAyMDE2IGF0IDEyOjIzOjM4QU0gKzAxMDAs IEFuZHJldyBDb29wZXIgd3JvdGU6Cj4gPiBPbiAyOC8wNC8yMDE2IDE5OjE2LCBLb25yYWQgUnpl c3p1dGVrIFdpbGsgd3JvdGU6Cj4gPiA+IGRpZmYgLS1naXQgYS94ZW4vY29tbW9uL3hzcGxpY2Uu YyBiL3hlbi9jb21tb24veHNwbGljZS5jCj4gPiA+IGluZGV4IDFiNjdkMzkuLjQ4MDg4Y2UgMTAw NjQ0Cj4gPiA+IC0tLSBhL3hlbi9jb21tb24veHNwbGljZS5jCj4gPiA+ICsrKyBiL3hlbi9jb21t b24veHNwbGljZS5jCj4gPiA+IEBAIC0xMDk5LDYgKzEwOTksMTMgQEAgc3RhdGljIHZvaWQgeHNw bGljZV9kb19hY3Rpb24odm9pZCkKPiA+ID4gICAgICBkYXRhLT5yYyA9IHJjOwo+ID4gPiAgfQo+ ID4gPiAgCj4gPiA+ICtzdGF0aWMgYm9vbF90IGlzX3dvcmtfc2NoZWR1bGVkKHN0cnVjdCBwYXls b2FkICpkYXRhKQo+ID4gCj4gPiBjb25zdCBzdHJ1Y3QgcGF5bG9hZCAqZGF0YQo+IAo+IFllcyEK PiA+IAo+ID4gT3RoZXJ3aXNlLCBSZXZpZXdlZC1ieTogQW5kcmV3IENvb3BlciA8YW5kcmV3LmNv b3BlcjNAY2l0cml4LmNvbT4KPiAKPiBBbmQgb2YgY291cnNlIDUgaG91cnMgbGF0ZXIgSSByZWFs aXplZCB0aGVyZSBpcyBhIG1vcmUgc3RyYWlnaHRmb3J3YXJkCj4gZm9yIHRoaXMuIEl0IGZvbGxv d3MgdGhlIHNhbWUgaWRlYSBidXQgaXQgcGlnZ3liYWNrIG9uIGRhdGEtPnJjCj4gYmVpbmcgc2V0 IGJ5ICdzY2hlZHVsZV93b3JrJyB0byAtRUFHQUlOIG9uY2Ugd29yayBpcyBzY2hlZHVsZWQ6CgpF cnIsICdzY2hlZHVsZV93b3JrJyBkb2VzIG5vdCBzZXQgZGF0YS0+cmMgdG8gLUVBR0FJTi4gSXQg aGFwcGVucwp3aXRoaW4geHNwbGljZV9kb19hY3Rpb246CgogCWRhdGEtPnJjID0gLUVBR0FJTjsg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgCiAgICAgICAg cmMgPSBzY2hlZHVsZV93b3JrKGRhdGEsIGFjdGlvbi0+Y21kLCBhY3Rpb24tPnRpbWVvdXQpOyAg CgooZm9yIGVpdGhlciByZXBsYWNlLCByZXZlcnQsIG9yIGFwcGx5KS4KCj4gCj4gSXQgY291bGQg ZXZlbiBiZSByb2xsZWQgaW4gInhzcGxpY2U6IEltcGxlbWVudCBzdXBwb3J0IGZvcgo+IGFwcGx5 aW5nL3JldmVydGluZy9yZXBsYWNpbmcgcGF0Y2hlcy4iCj4gCj4gCj4gPkZyb20gODMwNTNlM2Y5 ODRiNjdkZmFlNzRjYjY0ZTc1Yjg4NzFiOWQyMzZjYSBNb24gU2VwIDE3IDAwOjAwOjAwIDIwMDEK PiBGcm9tOiBLb25yYWQgUnplc3p1dGVrIFdpbGsgPGtvbnJhZC53aWxrQG9yYWNsZS5jb20+Cj4g RGF0ZTogVGh1LCAyOCBBcHIgMjAxNiAyMToyMjo0OSAtMDQwMAo+IFN1YmplY3Q6IFtQQVRDSF0g eHNwbGljZTogQ2hlY2sgZGF0YS0+cmMgZm9yIC1FQUdBSU4gdG8gZ3VhcmQgYWdhaW5zdCByYWNl cy4KPiBNSU1FLVZlcnNpb246IDEuMAo+IENvbnRlbnQtVHlwZTogdGV4dC9wbGFpbjsgY2hhcnNl dD1VVEYtOAo+IENvbnRlbnQtVHJhbnNmZXItRW5jb2Rpbmc6IDhiaXQKPiAKPiBDdXJyZW50bHkg aXQgaXMgcG9zc2libGUgdG86Cj4gCj4gMSkgIHhjX3hzcGxpY2VfYXBwbHkoKQo+ICAgICAgXC0+ IHhzcGxpY2VfYWN0aW9uCj4gICAgICAgICBzcGluX2xvY2socGF5bG9hZF9sb2NrKQo+ICAgICAg ICAgICAgICBcLSBzY2hlZHVsZV93b3JrKCkKPiAgICAgICAgICAgICAgICAgIGRhdGEtPnJjPS1F QUdBSU4KPiAgICAgICAgIHNwaW5fdW5sb2NrKHBheWxvYWRfbG9jayk7Cj4gCj4gMikgIHhjX3hz cGxpY2VfdW5sb2FkKCkKPiAgICAgIFwtPiB4c3BsaWNlX2FjdGlvbgo+ICAgICAgICAgc3Bpbl9s b2NrKHBheWxvYWRfbG9jaykKPiAgICAgICAgICAgICAgZnJlZV9wYXlsb2FkKGRhdGEpOwo+ICAg ICAgICAgc3Bpbl91bmxvY2socGF5bG9hZF9sb2NrKTsKPiAKPiAuLiBhbGwgQ1BVcyBhcmUgcXVp ZXNjZWQuCj4gCj4gMykgY2hlY2tfZm9yX3hzcGxpY2Vfd29yaygpCj4gICAgICBcLT4gYXBwbHlf cGF5bG9hZAo+ICAgICAgICAgXC0+IGFyY2hfeHNwbGljZV9hcHBseV9qbXAKPiAgICAgICAgICAg ICBCT09NCj4gICAgICAgICAgZGF0YS0+cmMgPTAKPiAKPiBUaGUgcmVhc29uIGlzIHRoYXQgc3Rh dGUgaXMgaW4gJ0NIRUNLRUQnIHdoaWNoIGNoYW5nZXMgdG8gJ0FQUExJRUQnCj4gb25jZSBjaGVj a19mb3JfeHNwbGljZV93b3JrIGZpbmlzaGVzIChhbmQgaXQgdXBkYXRlcyBkYXRhLT5yYyB0byB6 ZXJvKS4KPiAKPiBCdXQgd2UgaGF2ZSBhIHJhY2UgYmV0d2VlbiAxKSAtPiAzKSB3aGVyZSBvbmUg Y2FuIG1hbmlwdWxhdGUgdGhlIHBheWxvYWQKPiAoYXMgdGhlIHN0YXRlIGlzIGluICdDSEVDS0VE JyBmcm9tIHdoaWNoIHlvdSBjYW4gYXBwbHkvcmV2ZXJ0IGFuZCB1bmxvYWQpLgo+IAo+IFRoaXMg cGF0Y2ggYWRkcyBhIHNpbXBsZSBjaGVjayBvbiBkYXRhLT5yYyB0byBzZWUgaWYgaXQgaXMgaW4g LUVBR0FJTgo+IHdoaWNoIG1lYW5zIHRoYXQgc2NoZWR1bGVfd29yayBoYXMgYmVlbiBjYWxsZWQg Zm9yIHRoaXMgcGF5bG9hZC4KPiAKPiBJZiB0aGUgcGF5bG9hZCBhYm9ydHMgaW4gY2hlY2tfZm9y X3hzcGxpY2Vfd29yayAodGltZWQgb3V0LCBldGMpLAo+IHRoZSBkYXRhLT5yYyB3aWxsIGJlIC1F QlVTWSAtc28gb25lIGNhbiBzdGlsbCB1bmxvYWQgdGhlIHBheWxvYWQgb3IKPiByZXRyeSB0aGUg b3BlcmF0aW9uLgo+IAo+IFNpZ25lZC1vZmYtYnk6IEtvbnJhZCBSemVzenV0ZWsgV2lsayA8a29u cmFkLndpbGtAb3JhY2xlLmNvbT4KPiBSZXBvcnRlZC1ieTogUm9nZXIgUGF1IE1vbm7DqSA8cm9n ZXIucGF1QGNpdHJpeC5jb20+Cj4gCj4gLS0tCj4gQ0M6IEFuZHJldyBDb29wZXIgPGFuZHJldy5j b29wZXIzQGNpdHJpeC5jb20+Cj4gQ0M6IEdlb3JnZSBEdW5sYXAgPEdlb3JnZS5EdW5sYXBAZXUu Y2l0cml4LmNvbT4KPiBDQzogSWFuIEphY2tzb24gPGlhbi5qYWNrc29uQGV1LmNpdHJpeC5jb20+ Cj4gQ0M6IEphbiBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPiBDQzogS29ucmFkIFJ6ZXN6 dXRlayBXaWxrIDxrb25yYWQud2lsa0BvcmFjbGUuY29tPgo+IENDOiBTdGVmYW5vIFN0YWJlbGxp bmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Cj4gQ0M6IFRpbSBEZWVnYW4gPHRpbUB4ZW4ub3Jn Pgo+IENDOiBXZWkgTGl1IDx3ZWkubGl1MkBjaXRyaXguY29tPgo+IENDOiBSb3NzIExhZ2Vyd2Fs bCA8cm9zcy5sYWdlcndhbGxAY2l0cml4LmNvbT4KPiAtLS0KPiAtLS0KPiAgeGVuL2NvbW1vbi94 c3BsaWNlLmMgfCA0ICsrKysKPiAgMSBmaWxlIGNoYW5nZWQsIDQgaW5zZXJ0aW9ucygrKQo+IAo+ IGRpZmYgLS1naXQgYS94ZW4vY29tbW9uL3hzcGxpY2UuYyBiL3hlbi9jb21tb24veHNwbGljZS5j Cj4gaW5kZXggMWI2N2QzOS4uMGJjN2UwZiAxMDA2NDQKPiAtLS0gYS94ZW4vY29tbW9uL3hzcGxp Y2UuYwo+ICsrKyBiL3hlbi9jb21tb24veHNwbGljZS5jCj4gQEAgLTEzNjMsNiArMTM2Myw5IEBA IHN0YXRpYyBpbnQgeHNwbGljZV9hY3Rpb24oeGVuX3N5c2N0bF94c3BsaWNlX2FjdGlvbl90ICph Y3Rpb24pCj4gICAgICAgICAgcmV0dXJuIFBUUl9FUlIoZGF0YSk7Cj4gICAgICB9Cj4gIAo+ICsg ICAgaWYgKCBkYXRhLT5yYyA9PSAtRUFHQUlOICkgLyogc2NoZWR1bGVfd29yayBoYXMgYmVlbiBj YWxsZWQuICovCj4gKyAgICAgICAgZ290byBvdXQ7Cj4gKwo+ICAgICAgc3dpdGNoICggYWN0aW9u LT5jbWQgKQo+ICAgICAgewo+ICAgICAgY2FzZSBYU1BMSUNFX0FDVElPTl9VTkxPQUQ6Cj4gQEAg LTE0MjMsNiArMTQyNiw3IEBAIHN0YXRpYyBpbnQgeHNwbGljZV9hY3Rpb24oeGVuX3N5c2N0bF94 c3BsaWNlX2FjdGlvbl90ICphY3Rpb24pCj4gICAgICAgICAgYnJlYWs7Cj4gICAgICB9Cj4gIAo+ ICsgb3V0Ogo+ICAgICAgc3Bpbl91bmxvY2soJnBheWxvYWRfbG9jayk7Cj4gIAo+ICAgICAgcmV0 dXJuIHJjOwo+IC0tIAo+IDIuNC4wCj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54 ZW4ub3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=