From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:36175) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ghvB3-0008FK-Cb for qemu-devel@nongnu.org; Fri, 11 Jan 2019 06:40:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ghvB2-0001tI-JE for qemu-devel@nongnu.org; Fri, 11 Jan 2019 06:40:41 -0500 From: Vladimir Sementsov-Ogievskiy Date: Fri, 11 Jan 2019 11:40:33 +0000 Message-ID: References: <20190110132048.49451-1-vsementsov@virtuozzo.com> <20190111104126.GC5010@dhcp-200-186.str.redhat.com> In-Reply-To: <20190111104126.GC5010@dhcp-200-186.str.redhat.com> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <82362A166CCA824E86B443EB1B8CE993@eurprd08.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] block: don't probe zeroes in bs->file by default on block_status List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin Wolf Cc: "qemu-devel@nongnu.org" , "qemu-block@nongnu.org" , "armbru@redhat.com" , "eblake@redhat.com" , "fam@euphon.net" , "stefanha@redhat.com" , "mreitz@redhat.com" , "pbonzini@redhat.com" , Denis Lunev MTEuMDEuMjAxOSAxMzo0MSwgS2V2aW4gV29sZiB3cm90ZToNCj4gQW0gMTAuMDEuMjAxOSB1bSAx NDoyMCBoYXQgVmxhZGltaXIgU2VtZW50c292LU9naWV2c2tpeSBnZXNjaHJpZWJlbjoNCj4+IGRy dl9jb19ibG9ja19zdGF0dXMgZGlncyBicy0+ZmlsZSBmb3IgYWRkaXRpb25hbCwgbW9yZSBhY2N1 cmF0ZSBzZWFyY2gNCj4+IGZvciBob2xlIGluc2lkZSByZWdpb24sIHJlcG9ydGVkIGFzIERBVEEg YnkgYnMgc2luY2UgNWRhYTc0YTZlYmMuDQo+Pg0KPj4gVGhpcyBhY2N1cmFjeSBpcyBub3QgZnJl ZTogYXNzdW1lIHdlIGhhdmUgcWNvdzIgZGlzay4gQWN0dWFsbHksIHFjb3cyDQo+PiBrbm93cywg d2hlcmUgYXJlIGhvbGVzIGFuZCB3aGVyZSBpcyBkYXRhLiBCdXQgZXZlcnkgYmxvY2tfc3RhdHVz DQo+PiByZXF1ZXN0IGNhbGxzIGxzZWVrIGFkZGl0aW9uYWxseS4gQXNzdW1lIGEgYmlnIGRpc2ss IGZ1bGwgb2YNCj4+IGRhdGEsIGluIGFueSBpdGVyYXRpdmUgY29weWluZyBibG9jayBqb2IgKG9y IGltZyBjb252ZXJ0KSB3ZSdsbCBjYWxsDQo+PiBsc2VlayhIT0xFKSBvbiBldmVyeSBpdGVyYXRp b24sIGFuZCBlYWNoIG9mIHRoZXNlIGxzZWVrcyB3aWxsIGhhdmUgdG8NCj4+IGl0ZXJhdGUgdGhy b3VnaCBhbGwgbWV0YWRhdGEgdXAgdG8gdGhlIGVuZCBvZiBmaWxlLiBJdCdzIG9idmlvdXNseQ0K Pj4gaW5lZmZlY3RpdmUgYmVoYXZpb3IuIEFuZCBmb3IgbWFueSBzY2VuYXJpb3Mgd2UgZG9uJ3Qg bmVlZCB0aGlzIGxzZWVrDQo+PiBhdCBhbGwuDQo+Pg0KPj4gU28sIGxldCdzICI1ZGFhNzRhNmVi YyIgYnkgZGVmYXVsdCwgbGVhdmluZyBhbiBvcHRpb24gdG8gcmV0dXJuDQo+PiBwcmV2aW91cyBi ZWhhdmlvciwgd2hpY2ggaXMgbmVlZGVkIGZvciBzY2VuYXJpb3Mgd2l0aCBwcmVhbGxvY2F0ZWQN Cj4+IGltYWdlcy4NCj4+DQo+PiBBZGQgaW90ZXN0IGlsbHVzdHJhdGluZyBuZXcgb3B0aW9uIHNl bWFudGljcy4NCj4+DQo+PiBTaWduZWQtb2ZmLWJ5OiBWbGFkaW1pciBTZW1lbnRzb3YtT2dpZXZz a2l5IDx2c2VtZW50c292QHZpcnR1b3p6by5jb20+DQo+IA0KPiBJIHN0aWxsIHRoaW5rIHRoYXQg YW4gb3B0aW9uIGlzbid0IGEgZ29vZCBzb2x1dGlvbiBhbmQgd2Ugc2hvdWxkIHRyeSB1c2UNCj4g c29tZSBoZXVyaXN0aWNzIGluc3RlYWQuDQoNCkRvIHlvdSB0aGluayB0aGF0IGhldXJpc3RpY3Mg d291bGQgYmUgYmV0dGVyIHRoYW4gZmFpciBjYWNoZSBmb3IgbHNlZWsgcmVzdWx0cz8NCg0KSSBk b24ndCBzZWUgZ29vZCBoZXVyaXN0aWNzLCBuZWl0aGVyIHdhbnQgdG8gaW1wbGVtZW50IGxzZWVr IG9wdGltaXphdGlvbnMuDQpJbiBvdXIgY2FzZXMgd2UgZG9uJ3QgbmVlZCBsc2VlayB1bmRlciBx Y293MiBhdCBhbGwsIGFuZCBpdCdzIG9idmlvdXNseSBiZXR0ZXINCmp1c3QgZG9uJ3QgbHNlZWsg aW4gdGhlc2UgY2FzZXMuDQoNCk1vcmVvdmVyLCBhcyBJIHVuZGVyc3RhbmQsIHRoZSBjYXNlcyB3 aGVuIHdlIG5lZWQgbHNlZWsgYXJlIHRob3NlIHdoZW4gcWNvdzIgdGhpbmtzDQp0aGF0IHRoZSBj bHVzdGVyIGlzIGRhdGEsIGJ1dCBhY3R1YWxseSBpdCdzIGEgaG9sZSBvbiBmcy4uLiBJc24ndCBp dCBiZXR0ZXIgdG8NCnN1cHBvcnQgdGhpcyB0aGluZyBpbiBxY293Mj8gQSBraW5kIG9mIGFsbG9j YXRlZC16ZXJvZXMgY2x1c3Rlcj8gV2UgaGF2ZSBlbm91Z2gNCnJlc2VydmVkIGJpdHMgaW4gY2x1 c3RlciBkZXNjcmlwdG9yIHRvIGFkZCB0aGlzIGZlYXR1cmUuIEFuZCB0aGFuIHdlIGRvbid0IG5l ZWQNCnRoaXMga2luZCBvZiBjaGVhdGluZyB3aGVuIHVzZXIgImJldHRlciBrbm93cyIgd2hlcmUg YXJlIGhvbGVzIHRoYW4gZm9ybWF0IGxheWVyDQp3aGljaCBvd25zIHRoZSBkYXRhLi4NCg0KLS0g DQpCZXN0IHJlZ2FyZHMsDQpWbGFkaW1pcg0K