From mboxrd@z Thu Jan 1 00:00:00 1970 From: toshi.kani@hpe.com (Kani, Toshi) Date: Wed, 7 Mar 2018 23:22:24 +0000 Subject: [PATCH 2/2] x86/mm: implement free pmd/pte page interfaces In-Reply-To: <20180307150127.1e09e9826e0f2c80ce42fa4d@linux-foundation.org> References: <20180307183227.17983-1-toshi.kani@hpe.com> <20180307183227.17983-3-toshi.kani@hpe.com> <20180307150127.1e09e9826e0f2c80ce42fa4d@linux-foundation.org> Message-ID: <1520467641.2693.52.camel@hpe.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 2018-03-07 at 15:01 -0800, Andrew Morton wrote: > On Wed, 7 Mar 2018 11:32:27 -0700 Toshi Kani wrote: > > > Implement pud_free_pmd_page() and pmd_free_pte_page() on x86, which > > clear a given pud/pmd entry and free up lower level page table(s). > > Address range associated with the pud/pmd entry must have been purged > > by INVLPG. > > OK, now we have implementations which match the naming ;) Again, is a > cc:stable warranted? Right. This patch 2/2 fixes the memory leak on x86. Fixes: e61ce6ade404e ("mm: change ioremap to set up huge I/O mappings") Patch 1/2 fixes the panic on arm64. Fixes: 324420bf91f60 ("arm64: add support for ioremap() block mappings") > Do you have any preferences/suggestions as to which tree these should > be merged through? You're hitting core, arm and x86. No, I do not have any preference. Thanks, -Toshi From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f70.google.com (mail-pg0-f70.google.com [74.125.83.70]) by kanga.kvack.org (Postfix) with ESMTP id E4F786B0003 for ; Wed, 7 Mar 2018 18:22:28 -0500 (EST) Received: by mail-pg0-f70.google.com with SMTP id b2so1572015pgt.6 for ; Wed, 07 Mar 2018 15:22:28 -0800 (PST) Received: from g4t3427.houston.hpe.com (g4t3427.houston.hpe.com. [15.241.140.73]) by mx.google.com with ESMTPS id l61-v6si13661977plb.95.2018.03.07.15.22.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Mar 2018 15:22:27 -0800 (PST) From: "Kani, Toshi" Subject: Re: [PATCH 2/2] x86/mm: implement free pmd/pte page interfaces Date: Wed, 7 Mar 2018 23:22:24 +0000 Message-ID: <1520467641.2693.52.camel@hpe.com> References: <20180307183227.17983-1-toshi.kani@hpe.com> <20180307183227.17983-3-toshi.kani@hpe.com> <20180307150127.1e09e9826e0f2c80ce42fa4d@linux-foundation.org> In-Reply-To: <20180307150127.1e09e9826e0f2c80ce42fa4d@linux-foundation.org> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <245FF568C40EC84CA7A33723FC319F6F@NAMPRD84.PROD.OUTLOOK.COM> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: "akpm@linux-foundation.org" Cc: "linux-kernel@vger.kernel.org" , "bp@suse.de" , "tglx@linutronix.de" , "guohanjun@huawei.com" , "wxf.wang@hisilicon.com" , "linux-mm@kvack.org" , "x86@kernel.org" , "hpa@zytor.com" , "will.deacon@arm.com" , "catalin.marinas@arm.com" , "mingo@redhat.com" , "Hocko, Michal" , "linux-arm-kernel@lists.infradead.org" T24gV2VkLCAyMDE4LTAzLTA3IGF0IDE1OjAxIC0wODAwLCBBbmRyZXcgTW9ydG9uIHdyb3RlOg0K PiBPbiBXZWQsICA3IE1hciAyMDE4IDExOjMyOjI3IC0wNzAwIFRvc2hpIEthbmkgPHRvc2hpLmth bmlAaHBlLmNvbT4gd3JvdGU6DQo+IA0KPiA+IEltcGxlbWVudCBwdWRfZnJlZV9wbWRfcGFnZSgp IGFuZCBwbWRfZnJlZV9wdGVfcGFnZSgpIG9uIHg4Niwgd2hpY2gNCj4gPiBjbGVhciBhIGdpdmVu IHB1ZC9wbWQgZW50cnkgYW5kIGZyZWUgdXAgbG93ZXIgbGV2ZWwgcGFnZSB0YWJsZShzKS4NCj4g PiBBZGRyZXNzIHJhbmdlIGFzc29jaWF0ZWQgd2l0aCB0aGUgcHVkL3BtZCBlbnRyeSBtdXN0IGhh dmUgYmVlbiBwdXJnZWQNCj4gPiBieSBJTlZMUEcuDQo+IA0KPiBPSywgbm93IHdlIGhhdmUgaW1w bGVtZW50YXRpb25zIHdoaWNoIG1hdGNoIHRoZSBuYW1pbmcgOykgQWdhaW4sIGlzIGENCj4gY2M6 c3RhYmxlIHdhcnJhbnRlZD8NCg0KUmlnaHQuIFRoaXMgcGF0Y2ggMi8yIGZpeGVzIHRoZSBtZW1v cnkgbGVhayBvbiB4ODYuDQoNCkZpeGVzOiBlNjFjZTZhZGU0MDRlICgibW06IGNoYW5nZSBpb3Jl bWFwIHRvIHNldCB1cCBodWdlIEkvTyBtYXBwaW5ncyIpDQoNClBhdGNoIDEvMiBmaXhlcyB0aGUg cGFuaWMgb24gYXJtNjQuDQoNCkZpeGVzOiAzMjQ0MjBiZjkxZjYwICgiYXJtNjQ6IGFkZCBzdXBw b3J0IGZvciBpb3JlbWFwKCkgYmxvY2sgbWFwcGluZ3MiKQ0KDQo+IERvIHlvdSBoYXZlIGFueSBw cmVmZXJlbmNlcy9zdWdnZXN0aW9ucyBhcyB0byB3aGljaCB0cmVlIHRoZXNlIHNob3VsZA0KPiBi ZSBtZXJnZWQgdGhyb3VnaD8gIFlvdSdyZSBoaXR0aW5nIGNvcmUsIGFybSBhbmQgeDg2Lg0KDQpO bywgSSBkbyBub3QgaGF2ZSBhbnkgcHJlZmVyZW5jZS4NCg0KVGhhbmtzLA0KLVRvc2hpDQoNCg==