From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dario Faggioli Subject: Re: [PATCH for 4.7 1/4] xen: sched: avoid spuriously re-enabling IRQs in csched2_switch_sched() Date: Wed, 4 May 2016 17:58:23 +0200 Message-ID: <1462377503.6981.21.camel@citrix.com> References: <146231184906.25631.6550047090421454264.stgit@Solace.fritz.box> <146231199550.25631.15153219462074625034.stgit@Solace.fritz.box> <572A1128.7010609@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 1axzC6-0001Gv-Sm for xen-devel@lists.xenproject.org; Wed, 04 May 2016 15:58:34 +0000 In-Reply-To: <572A1128.7010609@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: George Dunlap , xen-devel@lists.xenproject.org Cc: Wei Liu List-Id: xen-devel@lists.xenproject.org T24gV2VkLCAyMDE2LTA1LTA0IGF0IDE2OjExICswMTAwLCBHZW9yZ2UgRHVubGFwIHdyb3RlOgo+ IE9uIDAzLzA1LzE2IDIyOjQ2LCBEYXJpbyBGYWdnaW9saSB3cm90ZToKPiA+IAo+ID4gSW4gZmFj dCwgaW50ZXJydXB0cyBhcmUgYWxyZWFkeSBkaXNhYmxlZCB3aGVuIGNhbGxpbmcKPiA+IHRoZSBo b29rIGZyb20gc2NoZWR1bGVfY3B1X3N3aXRjaCgpLCBhbmQgaGVuY2UgdXNpbmcKPiA+IGFueXRo aW5nIGRpZmZlcmVudCB0aGFuIGp1c3Qgc3Bpbl9sb2NrKCkgaXMgd3JvbmcgKGFuZAo+ID4gQVNT RVJUKCktcyBpbiBkZWJ1ZyBidWlsZHMpIG9yIHVubmVjZXNzYXJ5Lgo+ID4gCj4gPiBTaWduZWQt b2ZmLWJ5OiBEYXJpbyBGYWdnaW9saSA8ZGFyaW8uZmFnZ2lvbGlAY2l0cml4LmNvbT4KPiBHb29k IGNhdGNoLsKgwqAKPgpXZWxsLCBtdWNoIHJhdGhlciBteSBiYWQgaW50cm9kdWNpbmcgdGhpcyEg Oi0vCgo+IEJ1dCB3b3VsZCBpdCBiZSBiZXR0ZXIgdG8gZWl0aGVyIDEpIGFkZCBhbiBhc3NlcnQg dGhhdCBpcnFzCj4gYXJlIGRpc2FibGVkLCBvciAyKSB1c2Ugc3Bpbl9sb2NrX2lycXNhdmUoKSwg anVzdCB0byBtYWtlIHN1cmUgdGhlCj4gdHdvCj4gYml0cyBvZiBjb2RlIHdvbid0IHNpbGVudGx5 IGdvIG91dCBvZiBzeW5jPwo+IApUaGVyZSdzIGFuIEFTU0VSVCgpIGFscmVhZHksIGluIHNwaW5f bG9ja19pcnEoKSAoYXNraW5nIGZvciBJUlFzIHRvIGJlCmVuYWJsZWQpLCB3aGljaCBpcyBpbiBm YWN0IHRoZSBvbmUgdGhhdCB0cmlnZ2Vycy4KCkkgaW50cm9kdWNlZCB0aGUgYnVnIGJlY2F1c2Ug b2YgYW4gb3ZlcnNpZ2h0IHdoZW4gYXBwbHlpbmcgdGhlIGxhc3QKcmV2aWV3IGNvbW1lbnRzIHRv IGEgcHJldmlvdXMgcGF0Y2ggc2VyaWVzLCBhbmQgZGlkIG5vdCBzcG90IGl0IGJlY2F1c2UKLS1h bmQgdGhpcyBpcyB0aGUgdHJ1ZSBtaXN0YWtlLCBJTU8tLSBJIHRlc3RlZCB0aGUgZmluYWwgcmVz dWx0IG9ubHkKd2l0aCBkZWJ1Zz1uLiBUaGlzIGlzIHdoeSBJIHRoaW5rIGFuIEFTU0VSVCgpIGlz IGFmdGVyIGFsbCBub3QgdGhhdAp1c2VmdWwgaGVyZS4uLiBJbiBmYWN0LCBpZiB0aGlzIHdlcmUg dGVzdGVkIHdpdGggZGVidWc9eSwgd2hhdCdzCmFscmVhZHkgaW4gcGxhY2Ugd291bGQgaGF2ZSBi ZWVuIGVub3VnaC4KClRoZXJlIGFyZSBxdWl0ZSBhIGZldyBvdGhlciBzaW1pbGFyIGNhc2VzIGFs bCBhcm91bmQgc2NoZWR1bGluZyBjb2RlLgpTb21lIG9mIHRoZW0gaGF2ZSBjb21tZW50cywgbm9u ZSBoYXMgQVNTRVJUKCktcywgYW5kIEkgdGhpbmsgdGhhdCBpcwpmaW5lLgoKSSBhbHNvIGRvbid0 IGxpa2UgdXNpbmcgc3Bpbl9sb2NrX2lycXNhdmUoKSB3aGVuIGl0IGlzIG5vdCBuZWNlc3Nhcnks CmV2ZW4gaWYgdGhpcyBpcyBub3QgYW4gaG90IHBhdGguIEluIGZhY3QsIGFwYXJ0IGZyb20gYmVp bmcgc2xvd2VyLCBJCmZpbmQgaXQgbW9yZSBjb25mdXNpbmcgdGhhbiBoZWxwZnVsLCBlc3BlY2lh bGx5IHdoZW4gbG9va2luZyBhdCB0aGUKY29kZSBhbmQgdHJ5aW5nIHRvIHJlYXNvbiBhYm91dCB3 aGV0aGVyIHdlIGNhbiBiZSBjYWxsZWQgd2l0aCBJUlEKZW5hYmxlZCBvciBub3QuCgpTbywgaW4g c3VtbWFyeSwgSSdkIGJlIGZpbmUgd2l0aCBhZGRpbmcgYSBjb21tZW50LCBhbmQgSSdtIG9rCnJl c3Bpbm5pbmcgZm9yIHRoaXMuIFRoaXMgcGF0Y2ggaXMgcHJldHR5IGluZGVwZW5kZW50IGZyb20g dGhlIHJlc3Qgb2YKdGhlIHNlcmllcyBhbnl3YXksIHNvIEkgY2FuIGVhc2lseSByZXNwaW4ganVz dCB0aGlzIG9uZS4KClRob3VnaHRzPwoKPiBSZSBKYW4ncyBjb21tZW50IC0tIHlvdSBtZWFudCB0 byBzYXkgdGhhdCBzcGluX2xvY2tfaXJxKCkgaXMgd3JvbmcKPiBhbmQKPiBzcGluX2xvY2tfaXJx c2F2ZSgpIGlzIHVubmVjZXNzYXJ5P8KgwqBUaGF0J3MgcHJvYmFibHkgYSBiaXQgbW9yZQo+IGlu ZmVyZW5jZSB0aGFuIHdlIHdhbnQgY2hhbmdlc2V0IG1lc3NhZ2VzIHRvIGhhdmUsIGlkZWFsbHku IDotKQo+IApZZXMsIHRoYXQncyB3aGF0IEkgbWVhbnQsIGFzIEkgcmVwbGllZCBteXNlbGYgdG8g SmFuLgoKPiBJIHdvdWxkbid0IHJlcXVpcmUgYSByZS1zcGluIGp1c3QgZm9yIHRoYXQsIGJ1dCBp ZiB5b3UgYXJlIGdvaW5nIHRvCj4gcmVzcGluIGl0LCBJIHdvdWxkIHN1Z2dlc3QganVzdCBkcm9w cGluZyB0aGUgImFuZCBoZW5jZS4uLiIuCj4gCk9rLCBpZiBJIGhhdmUgdG8gcmVzcGluLCBJJ2xs IGRvIHRoaXMuIElmIG5vdCwgSSdtIGZpbmUgd2l0aCB3aG9ldmVyCmNvbW1pdHMgdGhpcyBoYXMg dG8gZHJvcCB0aGF0IHNlbnRlbmNlLgoKVGhhbmtzIGFuZCBSZWdhcmRzLApEYXJpbwotLSAKPDxU aGlzIGhhcHBlbnMgYmVjYXVzZSBJIGNob29zZSBpdCB0byBoYXBwZW4hPj4gKFJhaXN0bGluIE1h amVyZSkKLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0KRGFyaW8gRmFnZ2lvbGksIFBoLkQsIGh0dHA6Ly9hYm91dC5tZS9kYXJp by5mYWdnaW9saQpTZW5pb3IgU29mdHdhcmUgRW5naW5lZXIsIENpdHJpeCBTeXN0ZW1zIFImRCBM dGQuLCBDYW1icmlkZ2UgKFVLKQoKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=