From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [PATCH 02/15] xen: tracing: avoid checking tb_init_done multiple times. Date: Thu, 8 Jun 2017 15:34:23 +0100 Message-ID: <4e1fdf8c-a7dd-0177-f3c4-9ddd708ea47e@citrix.com> References: <149633614204.12814.14390287626133023934.stgit@Solace.fritz.box> <149633842869.12814.8051616219182929257.stgit@Solace.fritz.box> <59382DDF0200007800160770@prv-mh.provo.novell.com> <1496850931.9462.5.camel@citrix.com> <5938408902000078001608F8@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dIyWd-0007pH-9E for xen-devel@lists.xenproject.org; Thu, 08 Jun 2017 14:35:03 +0000 In-Reply-To: <5938408902000078001608F8@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich , Dario Faggioli Cc: George Dunlap , xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org T24gMDcvMDYvMTcgMTc6MDYsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDA3LjA2LjE3IGF0 IDE3OjU1LCA8ZGFyaW8uZmFnZ2lvbGlAY2l0cml4LmNvbT4gd3JvdGU6Cj4+IE9uIFdlZCwgMjAx Ny0wNi0wNyBhdCAwODo0NiAtMDYwMCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+PiBPbiAwMS4w Ni4xNyBhdCAxOTozMywgPGRhcmlvLmZhZ2dpb2xpQGNpdHJpeC5jb20+IHdyb3RlOgo+Pj4+Cj4+ Pj4gSW4gZmFjdCwgd2hlbiBjYWxsaW5nIF9fdHJhY2VfdmFyKCkgZGlyZWN0bHksIHdlIGNhbgo+ Pj4+IGFzc3VtZSB0aGF0IHRiX2luaXRfZG9uZSBoYXMgYmVlbiBjaGVja2VkIHRvIGJlIHRydWUs Cj4+Pj4gYW5kIHRoZSBpZiBpcyBoZW5jZSByZWR1bmRhbnQuCj4+Pgo+Pj4gVGhlICJhc3N1bWUi IGhlcmUgd29ycmllcyBtZTogV2hhdCBpZiB0aGVyZSdzIGEgc2luZ2xlIHBsYWNlCj4+PiBzb21l d2hlcmUgdGhhdCBhIGdyZXAgY2FuJ3QgZWFzaWx5IGZpbmQgd2hlcmUgbm8gY2hlY2sgaXMKPj4+ IHByZXNlbnQ/IElzIGl0IGNlcnRhaW4gdGhhdCAuLi4KPj4+Cj4+Pj4gQEAgLTY5MSw3ICs2OTEs OCBAQCB2b2lkIF9fdHJhY2VfdmFyKHUzMiBldmVudCwgYm9vbF90IGN5Y2xlcywKPj4+PiB1bnNp Z25lZCBpbnQgZXh0cmEsCj4+Pj4gICAgICB1bnNpZ25lZCBpbnQgZXh0cmFfd29yZDsKPj4+PiAg ICAgIGJvb2xfdCBzdGFydGVkX2JlbG93X2hpZ2h3YXRlcjsKPj4+PiAgCj4+Pj4gLSAgICBpZigg IXRiX2luaXRfZG9uZSApCj4+Pj4gKyAgICAvKiBJZiB0aGUgZXZlbnQgaXMgbm90IGludGVyZXN0 aW5nLCBiYWlsLCBhcyBlYXJseSBhcyBwb3NzaWJsZQo+Pj4+ICovCj4+Pj4gKyAgICBpZiAoICh0 Yl9ldmVudF9tYXNrICYgZXZlbnQpID09IDAgKQo+Pj4+ICAgICAgICAgIHJldHVybjsKPj4+Cj4+ PiAuLi4gdGhpcyBjaGVjayB3b3VsZCBhbHdheXMgYmUgZmFsc2UgdGhlbiAoaS5lLiB0Yl9ldmVu dF9tYXNrIGlzCj4+PiBhbHdheXMgemVybykgaW4gdGhhdCBjYXNlPwo+Pj4KPj4gQXMgc2FpZCB3 aGVuIHJlcGx5aW5nIHRvIEFuZHJldywgSSBvcmlnaW5hbGx5IHB1dCBhbiBBU1NFUlQoKSB0aGVy ZS4KPj4KPj4gVGhhdCBtYWRlIG1lIHJlYWxpemUsIHRob3VnaCwgdGhhdCB0aGUgZXhpc3Rpbmcg aWYoIXRiX2luaXRfZG9uZSkgaXMKPj4gaW5lZmZlY3RpdmUgYW5kIHBvdGVudGlhbGx5IHJhY3kg KG9yLCBpZiB5b3Ugd2FudCB0byBiZSBraW5kICJpdCdzIGEKPj4gYmVzdCBlZmZvcnQga2luZCBv ZiBtZWFzdXJlIikgYWxyZWFkeS4KPj4KPj4gSW4gZmFjdCwgZXZlbiByaWdodCBub3csIHdpdGhv dXQgbXkgcGF0Y2hlcywgd2UgZG9uJ3QgaG9sZCB0aGUgdHJhY2luZwo+PiBsb2NrIHdoZW4gd2Ug ZXhlY3V0ZSB0aGF0IGlmLiBOb3RoaW5nIHByZXZlbnRzIHRiX2luaXRfZG9uZSB0byBiZWNvbWUg MAo+PiBfcmlnaHRfYWZ0ZXJfIHdlIHNhdyBpdCBiZWluZyAxIGFuZCBkZWNpZGUgdG8gZ28gYWhl YWQuCj4+Cj4+IFRoaXMsIHRvIG1lLCBsb29rcyBsaWtlIGFuIGV2ZW4gbW9yZSBjb21wZWxsaW5n IHJlYXNvbiB0byByZW1vdmUgaXQuCj4+IEJ1dCBJIHRoaW5rIEkgY2FuIGltcHJvdmUgdGhlIGNv bW1pdCBtZXNzYWdlIHNvIHRoYXQgaXQgZXhwbGFpbnMgdGhpcwo+PiB0aGluZyB0aGF0IEkganVz dCBzYWlkIGFib3ZlIHRvby4KPiAKPiBXZWxsLCBteSBxdWVzdGlvbiB3YXNuJ3QgYWJvdXQgYSBw b3NzaWJsZSByYWNlIChhcyB0aGUgY29kZSB3b3VsZAo+IG5lZWQgdG8gYmUgYWJsZSB0byBkZWFs IHdpdGggdGhhdCBubyBtYXR0ZXIgd2hhdCBjaGFuZ2UgeW91IGRvCj4gaGVyZSksIGJ1dCBhYm91 dCB0aGUgY2FzZSB3aGVyZSB0Yl9pbml0X2RvbmUgaGFzIG5ldmVyIGJlZW4gc2V0Lgo+IFdvdWxk IHRiX2V2ZW50X21hc2sgYmUgcmVsaWFibHkgemVybyBpbiB0aGF0IGNhc2UsIG5vIG1hdHRlcgo+ IHdoYXQgb3RoZXIgb3BlcmF0aW9ucyBtYXkgaGF2ZSBiZWVuIHBlcmZvcm1lZD8KCkxvb2tzIGxp a2UgdGJfZXZlbnRfbWFzayBjYW4gYmUgc2V0IGV2ZW4gaWYgb3B0X3RidWZfc2l6ZSA9PSAwOyBz byB5ZXMsCmlmIHNvbWVvbmUgZW5hYmxlZCB0aGUgZXZlbnQgbWFzayBiZWZvcmUgYWxsb2NhdGlu ZyBhbnkgYnVmZmVycywgKmFuZCoKdGhlcmUgd2FzIGEgYnVnIHdoZXJlIF9fdHJhY2VfdmFyKCkg d2FzIGNhbGxlZCB3aXRob3V0IGZpcnN0IGNoZWNraW5nCnRiX2luaXRfZG9uZSwgdGhlbiB3ZSBt aWdodCBnZXQgcGFzdCB0aGlzIHBvaW50LgoKQnV0IGl0IGxvb2tzIGxpa2UgdGhhdCdzIHN0aWxs IE9LIC0tIHdlJ2xsIHRoZW4gYmFpbCB3aGVuIG91ciBiaXQgaW4KdGJfY3B1X21hc2sgaXNuJ3Qg c2V0LCBvciBmaW5hbGx5IGJhaWwgd2hlbiB3ZSBmaW5kIHRfYnVmcyB0byBiZSB6ZXJvLgoKIC1H ZW9yZ2UKCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K WGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xp c3RzLnhlbi5vcmcveGVuLWRldmVsCg==