From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) (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 11C471DA5E for ; Thu, 10 Oct 2024 13:16:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.58.86.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728566185; cv=none; b=ddn6GnZnt7oR5SkiraNybwl5PzwWT44K7AzO1OB02dUqxkgZM2wHJrjiOnv+oKLuP3u5f9JUo5AMIWAk/7k8jSPqFhS9KEz1hCjd48bngu9JC3HrqjHFCbXFRouLEe6FQOf1+ymUd1tBygNrBQfk5f1Ur8O1/GHk7W8JqYxn/co= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728566185; c=relaxed/simple; bh=E6uacqeixF45ugdAtEZs4daBmux+J2KkjiO1aT6eHNc=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: MIME-Version:Content-Type; b=nodudeJY+J8c8JgsMHns8q+DvcKkSibN8BB+a9QPyqY8qXHGhuAxqnsTiIIFDDqGh3OT9yL7/sbSy1gvto8ijWSuV8bWoJbfuEy4NOZ/XnS6HTzC7i9OEM73d8S9eRhamHW9Dt6UkKJlVgd3f3DqZyX9gfldWRMe84f4uHNxraw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM; spf=pass smtp.mailfrom=aculab.com; arc=none smtp.client-ip=185.58.86.151 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-285-fnxVz_etOa6u0sBWrM1T3Q-1; Thu, 10 Oct 2024 14:16:21 +0100 X-MC-Unique: fnxVz_etOa6u0sBWrM1T3Q-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; Thu, 10 Oct 2024 14:16:20 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Thu, 10 Oct 2024 14:16:20 +0100 From: David Laight To: 'Christian Brauner' , Aleksa Sarai , Jonathan Corbet CC: "luca.boccassi@gmail.com" , "linux-fsdevel@vger.kernel.org" , "christian@brauner.io" , "linux-kernel@vger.kernel.org" , "oleg@redhat.com" Subject: RE: [PATCH v9] pidfd: add ioctl to retrieve pid info Thread-Topic: [PATCH v9] pidfd: add ioctl to retrieve pid info Thread-Index: AQHbGvgfBXWpIVKuzEWs5ASg60jgibJ/9Svg Date: Thu, 10 Oct 2024 13:16:20 +0000 Message-ID: References: <20241008121930.869054-1-luca.boccassi@gmail.com> <87msjd9j7n.fsf@trenco.lwn.net> <20241009.205256-lucid.nag.fast.fountain-SP1kB7k0eW1@cyphar.com> <20241010-bewilligen-wortkarg-3c1195a5fb70@brauner> In-Reply-To: <20241010-bewilligen-wortkarg-3c1195a5fb70@brauner> 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-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 Li4uDQo+IHBpZGZkX2luZm8gb3ZlcndyaXRlcyB0aGUgcmVxdWVzdF9tYXNrIHdpdGggd2hhdCBp cyBzdXBwb3J0ZWQgYnkgdGhlDQo+IGtlcm5lbC4gSSBkb24ndCB0aGluayB1c2Vyc3BhY2Ugc2V0 dGluZyByYW5kb20gc3R1ZmYgaW4gdGhlIHJlcXVlc3RfbWFzaw0KPiBpcyBhIHByb2JsZW0uIEl0 IHdvdWxkIGFscmVhZHkgYmUgYSBwcm9ibGVtIHdpdGggc3RhdHgoKSBhbmQgd2UgaGF2ZW4ndA0K PiBzZWVuIHRoYXQgc28gZmFyLg0KDQpJIGRvbid0IHRoaW5rIGl0IGlzIHdpc2UvbmVjZXNzYXJ5 IGZvciB0aGUga2VybmVsIHRvIHNldCBiaXRzIHRoYXQNCndlcmVuJ3Qgc2V0IGluIHRoZSByZXF1 ZXN0IChmb3IgdmFsdWVzIHRoYXQgYXJlbid0IGJlaW5nIHJldHVybmVkKS4NCg0KVGhhdCB3b3Vs ZCBsZXQgeW91IGFkZCBzb21lIG11dHVhbGx5IGV4Y2x1c2l2ZSBvcHRpb25zIHRoYXQgdXNlDQp0 aGUgc2FtZSBwYXJ0IG9mIHRoZSBidWZmZXIgYXJlYS4NCg0KPiBJZiB1c2Vyc3BhY2UgaGFwcGVu cyB0byBzZXQgYSBzb21lIHJhbmRvbSBiaXQgaW4gdGhlIHJlcXVlc3RfbWFzayBhbmQNCj4gdGhh dCBiaXQgZW5kcyB1cCBiZWluZyB1c2VkIGEgZmV3IGtlcm5lbCByZWxlYXNlcyBsYXRlciB0byBl LmcuLA0KPiByZXRyaWV2ZSBhZGRpdGlvbmFsIGluZm9ybWF0aW9uIHRoZW4gYWxsIHRoYXQgaGFw cGVucyBpcyB0aGF0IHVzZXJzcGFjZQ0KPiB3b3VsZCBub3cgcmVjZWl2ZSBpbmZvcm1hdGlvbiB0 aGV5IGRpZG4ndCBuZWVkLiBUaGF0J3Mgbm90IGEgcHJvYmxlbS4NCg0KRXNwZWNpYWxseSBzaW5j ZSB0aGUgYnVmZmVyIGlzIHVubGlrZWx5IHRvIGJlIGxhcmdlIGVub3VnaC4NCg0KCURhdmlkDQoN Ci0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJt LCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChX YWxlcykNCg==