From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6F70E1DA27 for ; Wed, 20 Dec 2023 08:48:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aculab.com Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-10-pIjzM-T2PeCd5figLgR3AA-1; Wed, 20 Dec 2023 08:48:16 +0000 X-MC-Unique: pIjzM-T2PeCd5figLgR3AA-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 20 Dec 2023 08:48:02 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Wed, 20 Dec 2023 08:48:02 +0000 From: David Laight To: 'Steven Rostedt' , "linux-kernel@vger.kernel.org" , "linux-trace-kernel@vger.kernel.org" CC: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Tzvetomir Stoyanov , Vincent Donnefort , "Kent Overstreet" Subject: RE: [PATCH v5 02/15] ring-buffer: Page size per ring buffer Thread-Topic: [PATCH v5 02/15] ring-buffer: Page size per ring buffer Thread-Index: AQHaMqz+dUnedT4aZk+oEbt0Pk2DGrCx3FFA Date: Wed, 20 Dec 2023 08:48:02 +0000 Message-ID: <84d3b41a72bd43dbb9d44921ef535c92@AcuMS.aculab.com> References: <20231219185414.474197117@goodmis.org> <20231219185628.009147038@goodmis.org> In-Reply-To: <20231219185628.009147038@goodmis.org> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 RnJvbTogU3RldmVuIFJvc3RlZHQNCj4gU2VudDogMTkgRGVjZW1iZXIgMjAyMyAxODo1NA0KPiBG cm9tOiAiVHp2ZXRvbWlyIFN0b3lhbm92IChWTXdhcmUpIiA8dHouc3RveWFub3ZAZ21haWwuY29t Pg0KPiANCj4gQ3VycmVudGx5IHRoZSBzaXplIG9mIG9uZSBzdWIgYnVmZmVyIHBhZ2UgaXMgZ2xv YmFsIGZvciBhbGwgYnVmZmVycyBhbmQNCj4gaXQgaXMgaGFyZCBjb2RlZCB0byBvbmUgc3lzdGVt IHBhZ2UuIEluIG9yZGVyIHRvIGludHJvZHVjZSBjb25maWd1cmFibGUNCj4gcmluZyBidWZmZXIg c3ViIHBhZ2Ugc2l6ZSwgdGhlIGludGVybmFsIGxvZ2ljIHNob3VsZCBiZSByZWZhY3RvcmVkIHRv DQo+IHdvcmsgd2l0aCBzdWIgcGFnZSBzaXplIHBlciByaW5nIGJ1ZmZlci4NCj4gDQouLi4NCj4g LQlucl9wYWdlcyA9IERJVl9ST1VORF9VUChzaXplLCBCVUZfUEFHRV9TSVpFKTsNCj4gKwkvKiBE ZWZhdWx0IGJ1ZmZlciBwYWdlIHNpemUgLSBvbmUgc3lzdGVtIHBhZ2UgKi8NCj4gKwlidWZmZXIt PnN1YmJ1Zl9zaXplID0gUEFHRV9TSVpFIC0gQlVGX1BBR0VfSERSX1NJWkU7DQo+ICsNCj4gKwkv KiBNYXggcGF5bG9hZCBpcyBidWZmZXIgcGFnZSBzaXplIC0gaGVhZGVyICg4Ynl0ZXMpICovDQo+ ICsJYnVmZmVyLT5tYXhfZGF0YV9zaXplID0gYnVmZmVyLT5zdWJidWZfc2l6ZSAtIChzaXplb2Yo dTMyKSAqIDIpOw0KPiArDQo+ICsJbnJfcGFnZXMgPSBESVZfUk9VTkRfVVAoc2l6ZSwgYnVmZmVy LT5zdWJidWZfc2l6ZSk7DQoNCldoaWxlIG5vdCBuZXcsIGRvZXMgdGhpcyByZWFsbHkgbWFrZSBh bnkgc2Vuc2UgZm9yIHN5c3RlbXMgd2l0aCA2NGsgcGFnZXM/DQpXb3VsZG4ndCBpdCBiZSBiZXR0 ZXIgdG8gaGF2ZSB1bml0cyBvZiA0az8NCg0KLi4uDQo+IEBAIC01MTAyLDE0ICs1MTEwLDE0IEBA IHVuc2lnbmVkIGxvbmcgcmluZ19idWZmZXJfc2l6ZShzdHJ1Y3QgdHJhY2VfYnVmZmVyICpidWZm ZXIsIGludCBjcHUpDQo+ICB7DQo+ICAJLyoNCj4gIAkgKiBFYXJsaWVyLCB0aGlzIG1ldGhvZCBy ZXR1cm5lZA0KPiAtCSAqCUJVRl9QQUdFX1NJWkUgKiBidWZmZXItPm5yX3BhZ2VzDQo+ICsJICoJ YnVmZmVyLT5zdWJidWZfc2l6ZSAqIGJ1ZmZlci0+bnJfcGFnZXMNCj4gIAkgKiBTaW5jZSB0aGUg bnJfcGFnZXMgZmllbGQgaXMgbm93IHJlbW92ZWQsIHdlIGhhdmUgY29udmVydGVkIHRoaXMgdG8N Cj4gIAkgKiByZXR1cm4gdGhlIHBlciBjcHUgYnVmZmVyIHZhbHVlLg0KDQpPdmVyZW50aHVzaWFz dGljIGdsb2JhbCByZXBsYWNlLi4uDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3Mg TGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQ VCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=