From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6C37FC433EF for ; Mon, 27 Dec 2021 06:16:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uG8eyp76G+C+Mlo6FrYcTIShiJp/+3a+8b4ByQ9OVBM=; b=TzouPuN4iMz75G wF+TAbigB7MRudqLPtpaUHSr3tTdtcxePvqov8kT7X6jU0SMdhvOScvAIY8MiFZbU6m1Cl9wbWdyH 3MlNNcxb6M8LxOImxX7qm3APuusSjAARvrqg9ZgY0i7B8N4h5q36gPSllgCjjxZ+iyixD8gY4/kby GW6StG6lDBcb9mRMNo+DfIci0jRlzeFIpBK5wgCLSOaCksRd4FJUwHw/8ckEDDLFZTbHryPr+cw6x DV1eh/SvikztaJNrHN4Zp4qObEcXhlqTjQyojdC5SZcVZr64/jgblz9pDXC4uiqJ2P7DcYTTE+eXE CtOKWtcv1gVnOp6tpQvw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n1jHo-00GEZU-B5; Mon, 27 Dec 2021 06:15:08 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n1jHj-00GEXm-Sa for linux-arm-kernel@lists.infradead.org; Mon, 27 Dec 2021 06:15:05 +0000 Received: from dggpemm500023.china.huawei.com (unknown [172.30.72.53]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4JMnQ52V9xz8w5Q; Mon, 27 Dec 2021 14:12:29 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500023.china.huawei.com (7.185.36.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Mon, 27 Dec 2021 14:14:54 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 27 Dec 2021 14:14:53 +0800 Message-ID: Date: Mon, 27 Dec 2021 14:14:53 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH 1/3] mm: vmalloc: Let user to control huge vmalloc default behavior Content-Language: en-US To: Matthew Wilcox CC: Christophe Leroy , Jonathan Corbet , Andrew Morton , "linuxppc-dev@lists.ozlabs.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "x86@kernel.org" , "linux-arm-kernel@lists.infradead.org" , Catalin Marinas , Dave Hansen , Nicholas Piggin , Ingo Molnar , "Borislav Petkov" , "H. Peter Anvin" , Paul Mackerras , Thomas Gleixner , Will Deacon References: <20211226083912.166512-1-wangkefeng.wang@huawei.com> <20211226083912.166512-2-wangkefeng.wang@huawei.com> <6c4bd989-268e-5899-09a7-ac573bd8b4d9@csgroup.eu> From: Kefeng Wang In-Reply-To: X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggeme707-chm.china.huawei.com (10.1.199.103) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211226_221504_271533_FA5E4CC8 X-CRM114-Status: GOOD ( 16.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIwMjEvMTIvMjcgMTE6MTksIE1hdHRoZXcgV2lsY294IHdyb3RlOgo+IE9uIE1vbiwgRGVj IDI3LCAyMDIxIGF0IDA5OjQ0OjI0QU0gKzA4MDAsIEtlZmVuZyBXYW5nIHdyb3RlOgo+PiBPbiAy MDIxLzEyLzI3IDE6MzYsIENocmlzdG9waGUgTGVyb3kgd3JvdGU6Cj4+PiBMZSAyNi8xMi8yMDIx IMOgIDA5OjM5LCBLZWZlbmcgV2FuZyBhIMOpY3JpdMKgOgo+Pj4+IEFkZCBIVUdFX1ZNQUxMT0Nf REVGQVVMVF9FTkFCTEVEIHRvIGxldCB1c2VyIHRvIGNob29zZSB3aGV0aGVyIG9yCj4+Pj4gbm90 IGVuYWJsZSBodWdlIHZtYWxsb2MgbWFwcGluZ3MgYnkgZGVmYXVsdCwgYW5kIHRoaXMgY291bGQg bWFrZQo+Pj4+IG1vcmUgYXJjaGl0ZWN0dXJlcyB0byBlbmFibGUgaHVnZSB2bWFsbG9jIG1hcHBp bmdzIGZlYXR1cmUgYnV0Cj4+Pj4gZG9uJ3Qgd2FudCB0byBlbmFibGUgaXQgYnkgZGVmYXVsdC4K Pj4+Pgo+Pj4+IEFkZCBodWdldm1hbGxvYz1vbi9vZmYgcGFyYW1ldGVyIHRvIGVuYWJsZSBvciBk aXNhYmxlIHRoaXMgZmVhdHVyZQo+Pj4+IGF0IGJvb3QgdGltZSwgbm9odWdldm1hbGxvYyBpcyBz dGlsbCBzdXBwb3J0ZWQgYW5kIGVxdWl2YWxlbnQgdG8KPj4+PiBodWdldm1hbGxvYz1vZmYuCj4+ PiBJcyB0aGVyZSBhIHJlYWwgYWRkZWQgdmFsdWUgdG8gaGF2ZSB0aGUgdXNlciBiZSBhYmxlIHRv IHNlbGVjdCB0aGF0ID8KPj4+Cj4+PiBJZiB0aGUgYXJjaGl0ZWN0dXJlIHN1cHBvcnRzIGl0LCBp cyB0aGVyZSBhbnkgZ29vZCByZWFzb24gdG8gbm90IHVzZSBpdCA/Cj4+IFRoZXJlIGFyZSBzb21l IGRpc2FkdmFudGFnZXNbMV0swqAgb25lIG9mIHRoZSBtYWluIGNvbmNlcm5zIGlzIHRoZSBwb3Nz aWJsZQo+Pgo+PiBtZW1vcnkgd2FzdGUsIHdlIGhhdmUgYmFja3BvcnRlZCB0aGlzIGZlYXR1cmUg dG8gb3VyIGtlcm5lbCA1LjEwLCBidXQgb3VyCj4+Cj4+IGRvd25zdHJlYW0gaW4gb3VyIHNvbWUg c2NlbmFyaW8oZXNwZWNpYWxseSBpbiBlbWJlZGRlZCksIHRoZXkgZG9uJ3Qgd2FudAo+Pgo+PiBp dCBlbmFibGVkIGJ5IGRlZmF1bHQsIGFuZCBvdGhlcnMgd2FudCBpdCwgdGhpcyBpcyB3aHkgcGF0 Y2gxIGNvbWVzLgo+Pgo+Pj4gV2h5IG5vdCBqdXN0IGRvIGxpa2UgUFBDIGFuZCBlbmFibGUgaXQg YnkgZGVmYXVsdCA/IFdoeSBzaG91bGQgaXQgYmUKPj4+IGVuYWJsZWQgYnkgZGVmYXVsdCBvbiBQ UEMgYnV0IGRpc2FibGVkIGJ5IGRlZmF1bHQgb24gQVJNNjQgYW5kIFg4NiA/Cj4+IFRoZSBQUEMg aXMgZGVmYXVsdCBlbmFibGVkLCB3ZSBkb24ndCBjaGFuZ2VzIHRoaXMgYmVoYXZpb3IuCj4+Cj4+ IE1heWJlIHVwc3RyZWFtIGlzIG5vdCBjYXJlIGFib3V0IHRoaXMsIGFzIEkgc2FpZCBpbiBjb3Zl ci1sZXR0ZXIsIGlmCj4+IGFybTY0L3g4Ngo+Pgo+PiBkb24ndCB3YW50IHBhdGNoMSwgd2UgY291 bGQgb25seSBqdXN0IHNlbGVjdCBjb25maWcgdG8gZW5hYmxlIGl0Lgo+Pgo+PiBMZXQncyB3YWl0 IGZvciBtb3JlIGZlZWRiYWNrLgo+IFdlIHNob3VsZCBub3QgaGF2ZSBkaWZmZXJlbnQgZGVmYXVs dHMgYnkgYXJjaGl0ZWN0dXJlLiAgRWl0aGVyIHdlIGNoYW5nZQo+IHRoZSBkZWZhdWx0IGZvciBQ UEMsIG9yIHg4NiAmIGFybSBzaG91bGQgaGF2ZSB0aGUgc2FtZSBkZWZhdWx0IGFzIFBQQy4KCk9r LCBzaW5jZSBIVUdFX1ZNQUxMT0NfREVGQVVMVF9FTkFCTEVEIGlzIGludHJvZHVjZWQsIHdlIGNv dWxkIG1ha2UgaXQKCmRlZmF1bHQgeSwgbm90IG9ubHkgc2VsZWN0IGl0IG9uIFBQQywgdGhlbiB0 aGUgcHBjL2FybTY0L3g4NiBoYXZlIHNhbWUgCmRlZmF1bHQgdmFsdWUuCgpBbmQgaWYgc29tZW9u ZSBkb24ndCB3YW50IGl0LCB0aGV5IGNvdWxkIG5vdCBlbmFibGUgdGhpcyBjb25maWcuCgpNZWFu d2hpbGUgaHVnZXZtYWxsb2M9b24vb2ZmIHRvIG1ha2UgdGhpcyBmZWF0dXJlIHRvIGVuYWJsZS9k aXNhYmxlIGF0IApib290IHRpbWUuCgpJIHdpbGwgYWRkIHNvbWUgZXhwbGFuYXRpb24gYW5kIHJl c2VuZCBpdCwgdGhhbmtzLgoKPiAuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2Vy bmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1h bi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==