From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: [PATCH for 4.7 1/4] xen: sched: avoid spuriously re-enabling IRQs in csched2_switch_sched() Date: Fri, 6 May 2016 14:48:55 +0100 Message-ID: <20160506134855.GK2111@citrix.com> References: <146231184906.25631.6550047090421454264.stgit@Solace.fritz.box> <146231199550.25631.15153219462074625034.stgit@Solace.fritz.box> <572A1128.7010609@citrix.com> <1462377503.6981.21.camel@citrix.com> <572A2BDD.4050506@citrix.com> <1462382486.6981.30.camel@citrix.com> <572A32BF.5030404@citrix.com> <1462540900.3355.43.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([85.158.143.247]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayg7s-0001SH-Hl for xen-devel@lists.xenproject.org; Fri, 06 May 2016 13:49:04 +0000 Content-Disposition: inline In-Reply-To: <1462540900.3355.43.camel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Dario Faggioli Cc: xen-devel@lists.xenproject.org, Wei Liu , George Dunlap List-Id: xen-devel@lists.xenproject.org T24gRnJpLCBNYXkgMDYsIDIwMTYgYXQgMDM6MjE6NDBQTSArMDIwMCwgRGFyaW8gRmFnZ2lvbGkg d3JvdGU6Cj4gT24gV2VkLCAyMDE2LTA1LTA0IGF0IDE4OjM0ICswMTAwLCBHZW9yZ2UgRHVubGFw IHdyb3RlOgo+ID4gT24gMDQvMDUvMTYgMTg6MjEsIERhcmlvIEZhZ2dpb2xpIHdyb3RlOgo+ID4g PsKgCj4gPiA+IEFmdGVyIGFsbCwgSSdtIGZpbmUgd2l0aCBhbiBBU1NFUlQoKSB0b28sIGJ1dCB0 aGVuIEkgdGhpbmsgd2UKPiA+ID4gc2hvdWxkCj4gPiA+IGFkZCBvbmUgdG8gdGhlIHNhbWUgZWZm ZWN0IHRvIGNzY2hlZF9zd2l0Y2hfc2NoZWQoKSB0b28uCj4gPiBXZWxsIGFuIEFTU0VSVCgpIGlz IHNvcnQgb2YgbGlrZSBhIGNvbW1lbnQsIGluIHRoYXQgaWYgeW91IHNlZQo+ID4gQVNTRVJUKGly cXNfZGlzYWJsZWQoKSksIHlvdSBrbm93IHRoZXJlJ3Mgbm8gbmVlZCB0byBzYXZlIGlycXMKPiA+ IGJlY2F1c2UKPiA+IHRoZXkgc2hvdWxkIGFscmVhZHkgZGlzYWJsZWQuwqDCoEJ1dCBpdCBoYXMg dGhlIGFkdmFudGFnZSB0aGF0IG9zc3Rlc3QKPiA+IHdpbGwgYmUgYWJsZSB0byAicmVhZCIgaXQg b25jZSB3ZSBnZXQgc29tZSBwcm9wZXIgY3B1cG9vbCB0ZXN0cyBmb3IKPiA+IG9zc3Rlc3QuIDot KQo+ID4gCj4gPiBJZiB3ZSB3ZXJlbid0IGluIHRoZSBmZWF0dXJlIGZyZWV6ZSwgSSdkIGRlZmlu aXRlbHkgZmF2b3IgYWRkaW5nIGFuCj4gPiBBU1NFUlQgdG8gY3JlZGl0MS7CoMKgQXMgaXQgaXMs IEkgdGhpbmsgZWl0aGVyIHdheSAoYWRkaW5nIG5vdyBvcgo+ID4gd2FpdGluZwo+ID4gdW50aWwg dGhlIDQuOCBkZXZlbG9wbWVudCB3aW5kb3cpIHNob3VsZCBiZSBmaW5lLgo+ID4gCj4gT2ssIGhl cmUgeW91IGdvIChpbmxpbmUgYW5kIGF0dGFjaGVkKSB0aGUgcGF0Y2ggd2l0aCBBU1NFUlQoKS1z IGJvdGggaW4KPiBDcmVkaXQyIGFuZCBDcmVkaXQxIChkZXNwaXRlIHRoZSBmcmVlemUsIEkgdGhp bmsgaXQncyB0aGUgYmVzdCB0aGluZyB0bwo+IGRvLCBzZWUgdGhlIGNoYW5nZWxvZykuCj4gCj4g VGhhbmtzIGFuZCBSZWdhcmRzLAo+IERhcmlvCj4gLS0KPiBjb21taXQgY2JhYmQ0NGUxNzFkMGJk MjE2OWYxYzcxMDBlNjlhOWU0ODI4OTk4MAo+IEF1dGhvcjogRGFyaW8gRmFnZ2lvbGkgPGRhcmlv LmZhZ2dpb2xpQGNpdHJpeC5jb20+Cj4gRGF0ZTrCoMKgwqBUdWUgQXByIDI2IDE4OjU2OjU2IDIw MTYgKzAyMDAKPiAKPiDCoMKgwqDCoHhlbjogc2NoZWQ6IGF2b2lkIHNwdXJpb3VzbHkgcmUtZW5h YmxpbmcgSVJRcyBpbiBjc2NoZWQyX3N3aXRjaF9zY2hlZCgpCj4gwqDCoMKgwqAKPiDCoMKgwqDC oGludGVycnVwdHMgYXJlIGFscmVhZHkgZGlzYWJsZWQgd2hlbiBjYWxsaW5nIHRoZSBob29rCj4g wqDCoMKgwqAoZnJvbSBzY2hlZHVsZV9jcHVfc3dpdGNoKCkpLCBzbyB3ZSBtdXN0IHVzZSBzcGlu X2xvY2soKQo+IMKgwqDCoMKgYW5kIHNwaW5fdW5sb2NrKCkuCj4gwqDCoMKgwqAKPiDCoMKgwqDC oEFkZCBhbiBBU1NFUlQoKSwgc28gd2Ugd2lsbCBub3RpY2UgaWYgdGhpcyBjb2RlIGFuZCBpdHMK PiDCoMKgwqDCoGNhbGxlciBnZXQgb3V0IG9mIHN5bmMgd2l0aCByZXNwZWN0IHRvIGRpc2FibGlu ZyBpbnRlcnJ1cHRzCj4gwqDCoMKgwqAoYW5kIGFkZCBvbmUgYXQgdGhlIHNhbWUgZXhhY3Qgb2Nj dXJyZW5jZSBvZiB0aGlzIHBhdHRlcm4KPiDCoMKgwqDCoGluIENyZWRpdDEgdG9vKQo+IMKgwqDC oMKgCj4gwqDCoMKgwqBTaWduZWQtb2ZmLWJ5OiBEYXJpbyBGYWdnaW9saSA8ZGFyaW8uZmFnZ2lv bGlAY2l0cml4LmNvbT4KPiDCoMKgwqDCoC0tLQo+IMKgwqDCoMKgQ2M6IEdlb3JnZSBEdW5sYXAg PGdlb3JnZS5kdW5sYXBAY2l0cml4LmNvbT4KPiDCoMKgwqDCoENjOiBXZWkgTGl1IDx3ZWkubGl1 MkBjaXRyaXguY29tPgo+IMKgwqDCoMKgLS0KPiDCoMKgwqDCoENoYW5nZXMgZnJvbSB2MToKPiDC oMKgwqDCoMKgKiBhZGQgdGhlIEFTU0VSVCgpLCBhcyByZXF1ZXN0ZWQgYnkgR2VvcmdlCj4gwqDC oMKgwqDCoCogYWRkIHRoZSBBU1NFUlQgaW4gQ3JlZGl0MSB0b28KPiDCoMKgwqDCoC0tCj4gwqDC oMKgwqBGb3IgV2VpOgo+IMKgwqDCoMKgwqAtIHRoZSBDcmVkaXQyIHNwaW5fbG9ja19pcnEoKS0t PnNwaW5fbG9jaygpIGNoYW5nZSBuZWVkcwo+IMKgwqDCoMKgwqDCoMKgdG8gZ28gaW4sIGFzIGl0 IGZpeGVzIGEgYnVnOwo+IMKgwqDCoMKgwqAtIGFkZGluZyB0aGUgQVNTRVJUIHdhcyByZXF1ZXN0 ZWQgZHVyaW5nIHJldmlldzsKPiDCoMKgwqDCoMKgLSBhZGRpbmcgdGhlIEFTU0VSVCBpbiBDcmVk aXQxIGlzIG5vdCBzdHJpY3RseSBuZWNlc3NhcnksCj4gwqDCoMKgwqDCoMKgwqBidXQgaW1wdG92 ZXMgY29kZSBxdWFsaXR5IGFuZCBjb25zaXN0ZW5jeSBhdCB6ZXJvIGNvc3QKPiDCoMKgwqDCoMKg wqDCoGFuZCByaXNrLCBzbyBJIHRoaW5rIHdlIHNob3VsZCBqdXN0IGdvIGZvciBpdCBub3csIGlu c3RlYWQKPiDCoMKgwqDCoMKgwqDCoG9mIHdhaXRpZ24gZm9yIDQuOCAoaXQncyBiYXNpY2FsbHkg bGlrZSBJJ20gYWRkaW5nIGEKPiDCoMKgwqDCoMKgwqDCoGNvbW1lbnQhKS4KPiAKClJlbGVhc2Ut YWNrZWQtYnk6IFdlaSBMaXUgPHdlaS5saXUyQGNpdHJpeC5jb20+CgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhl bi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=