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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C273C43381 for ; Wed, 27 Mar 2019 12:55:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 687402087C for ; Wed, 27 Mar 2019 12:55:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XqaAQQhB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 687402087C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ghiti.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Mzq+PNbTprQAea3Fl+B/x53CA9XW0JQB2XtIuYCDYVA=; b=XqaAQQhBoudJOohRtAKoVUFQV UT2zwLULYzuRdyLU7k/j+SpajaHvLLORQvkaJPzpNVLuz1Gq5eR6SgWwxcsvlH3oaC/MjI1rA/TmE S5lhjAwJCXildEkTTCG0mxSi9oSSrbwCs/b2HsJojA6QdxvWXPANFRrXkk+rFg9Bs2yFt4q/+K5hu PFygMi2Z4rU9NMYrGbQsDiQ0r4gaWhAMKXk7fgWxKHhdLDlalb0d8TIdmIVMcQfNUGUSasnnysKs2 /Zo0A8W/Rpx5cZEWMVlfReeqZlBl1JsuQ0ZBQCrS0W52JPYrd0txlXLyzFs9CoRqbj2i+Gx2hpgS8 WjfPfuF5A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h984z-0000IG-9A; Wed, 27 Mar 2019 12:54:53 +0000 Received: from relay12.mail.gandi.net ([217.70.178.232]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h984v-0000Gp-QG for linux-arm-kernel@lists.infradead.org; Wed, 27 Mar 2019 12:54:51 +0000 Received: from [10.30.1.20] (lneuilly-657-1-5-103.w81-250.abo.wanadoo.fr [81.250.144.103]) (Authenticated sender: alex@ghiti.fr) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 4CC6A20000A; Wed, 27 Mar 2019 12:54:35 +0000 (UTC) Subject: Re: [PATCH v8 4/4] hugetlb: allow to free gigantic pages regardless of the configuration To: "Aneesh Kumar K.V" , mpe@ellerman.id.au, Andrew Morton , Vlastimil Babka , Catalin Marinas , Will Deacon , Benjamin Herrenschmidt , Paul Mackerras , Martin Schwidefsky , Heiko Carstens , Yoshinori Sato , Rich Felker , "David S . Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , x86@kernel.org, Dave Hansen , Andy Lutomirski , Peter Zijlstra , Mike Kravetz , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org References: <20190327063626.18421-1-alex@ghiti.fr> <20190327063626.18421-5-alex@ghiti.fr> <87pnqcws2u.fsf@linux.ibm.com> From: Alexandre Ghiti Message-ID: <95819dc9-7910-f273-681c-a241fee62dd2@ghiti.fr> Date: Wed, 27 Mar 2019 13:54:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: <87pnqcws2u.fsf@linux.ibm.com> Content-Language: fr X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190327_055450_142501_A1B65B07 X-CRM114-Status: GOOD ( 18.48 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 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+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMDMvMjcvMjAxOSAxMTowNSBBTSwgQW5lZXNoIEt1bWFyIEsuViB3cm90ZToKPiBBbGV4YW5k cmUgR2hpdGkgPGFsZXhAZ2hpdGkuZnI+IHdyaXRlczoKPgo+PiBPbiAwMy8yNy8yMDE5IDA5OjU1 IEFNLCBBbmVlc2ggS3VtYXIgSy5WIHdyb3RlOgo+Pj4gT24gMy8yNy8xOSAyOjE0IFBNLCBBbGV4 YW5kcmUgR2hpdGkgd3JvdGU6Cj4+Pj4KPj4+PiBPbiAwMy8yNy8yMDE5IDA4OjAxIEFNLCBBbmVl c2ggS3VtYXIgSy5WIHdyb3RlOgo+Pj4+PiBPbiAzLzI3LzE5IDEyOjA2IFBNLCBBbGV4YW5kcmUg R2hpdGkgd3JvdGU6Cj4gLi4uLi4KPgo+Pj4gVGhpcyBpcyBub3cKPj4+ICNkZWZpbmUgX19IQVZF X0FSQ0hfR0lHQU5USUNfUEFHRV9SVU5USU1FX1NVUFBPUlRFRAo+Pj4gc3RhdGljIGlubGluZSBi b29sIGdpZ2FudGljX3BhZ2VfcnVudGltZV9zdXBwb3J0ZWQodm9pZCkKPj4+IHsKPj4+IGlmIChm aXJtd2FyZV9oYXNfZmVhdHVyZShGV19GRUFUVVJFX0xQQVIpICYmICFyYWRpeF9lbmFibGVkKCkp Cj4+PiAgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIGZhbHNlOwo+Pj4KPj4+ICDCoMKgwqDCoHJldHVy biB0cnVlOwo+Pj4gfQo+Pj4KPj4+Cj4+PiBJIGFtIHdvbmRlcmluZyB3aGV0aGVyIGl0IHNob3Vs ZCBiZQo+Pj4KPj4+ICNkZWZpbmUgX19IQVZFX0FSQ0hfR0lHQU5USUNfUEFHRV9SVU5USU1FX1NV UFBPUlRFRAo+Pj4gc3RhdGljIGlubGluZSBib29sIGdpZ2FudGljX3BhZ2VfcnVudGltZV9zdXBw b3J0ZWQodm9pZCkKPj4+IHsKPj4+Cj4+PiAgwqDCoCBpZiAoIUlTX0VOQUJMRUQoQ09ORklHX0NP TlRJR19BTExPQykpCj4+PiAgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIGZhbHNlOwo+PiBJIGRvbid0 IHRoaW5rIHRoaXMgdGVzdCBzaG91bGQgaGFwcGVuIGhlcmUsIENPTkZJR19DT05USUdfQUxMT0Mg b25seSBhbGxvd3MKPj4gdG8gYWxsb2NhdGUgZ2lnYW50aWMgcGFnZXMsIGRvaW5nIHRoYXQgY2hl Y2sgaGVyZSB3b3VsZCBwcmV2ZW50IHBvd2VycGMKPj4gdG8gZnJlZSBib290dGltZSBnaWdhbnRp YyBwYWdlcyB3aGVuIG5vdCBhIGd1ZXN0LiBOb3RlIHRoYXQgdGhpcyBjaGVjawo+PiBpcyBhY3R1 YWxseSBkb25lIGluIHNldF9tYXhfaHVnZV9wYWdlcy4KPj4KPj4KPj4+IGlmIChmaXJtd2FyZV9o YXNfZmVhdHVyZShGV19GRUFUVVJFX0xQQVIpICYmICFyYWRpeF9lbmFibGVkKCkpCj4+PiAgwqDC oMKgwqDCoMKgwqAgcmV0dXJuIGZhbHNlOwo+PiBNYXliZSBJIGRpZCBub3QgdW5kZXJzdGFuZCB0 aGlzIGNoZWNrOiBJIHVuZGVyc3Rvb2QgdGhhdCwgaW4gdGhlIGNhc2UKPj4gdGhlIHN5c3RlbQo+ PiBpcyB2aXJ0dWFsaXplZCwgd2UgZG8gbm90IHdhbnQgaXQgdG8gaGFuZCBiYWNrIGdpZ2FudGlj IHBhZ2VzLiBEb2VzIHRoaXMKPj4gY2hlY2sKPj4gdGVzdCBpZiB0aGUgc3lzdGVtIGlzIGN1cnJl bnRseSBiZWluZyB2aXJ0dWFsaXplZCA/Cj4+IElmIHllcywgSSB0aGluayB0aGUgcGF0Y2ggaXMg Y29ycmVjdDogaXQgcHJldmVudHMgZnJlZWluZyBnaWdhbnRpYyBwYWdlcwo+PiB3aGVuIHRoZSBz eXN0ZW0KPj4gaXMgdmlydHVhbGl6ZWQgYnV0IGFsbG93cyBhICdub3JtYWwnIHN5c3RlbSB0byBm cmVlIGdpZ2FudGljIHBhZ2VzLgo+Pgo+Pgo+IE9rIGRvdWJsZSBjaGVja2VkIHRoZSBwYXRjaCBh cHBseWluZyB0aGUgdGhlIHRyZWUuIEkgZ290IGNvbmZ1c2VkIGJ5IHRoZQo+IHJlbW92YWwgb2Yg dGhhdCAjaWZkZWYuIFNvIHdlIG5vdyBkaXNhbGxvdyB0aGUgcnVudGltZSBmcmVlIGJ5IGNoZWNr aW5nCj4gZm9yIGdpZ2FudGljX3BhZ2VfcnVudGltZV9zdXBwb3J0ZWQoKSBpbiAgX19ucl9odWdl cGFnZXNfc3RvcmVfY29tbW9uLgo+IE5vdyBpZiB3ZSBhbGxvdyBhbmQgaWYgQ09ORklHX0NPTlRJ R19BTExPQyBpcyBkaXNhYmxlZCwgd2Ugc3RpbGwgc2hvdWxkCj4gYWxsb3cgdG8gZnJlZSB0aGUg Ym9vdCB0aW1lIGFsbG9jYXRlZCBwYWdlcyBiYWNrIHRvIGJ1ZGR5Lgo+Cj4gVGhlIHBhdGNoIGxv b2tzIGdvb2QuIFlvdSBjYW4gYWRkIGZvciB0aGUgc2VyaWVzCj4KPiBSZXZpZXdlZC1ieTogQW5l ZXNoIEt1bWFyIEsuViA8YW5lZXNoLmt1bWFyQGxpbnV4LmlibS5jb20+Cj4KPiAtYW5lZXNoCj4K ClRoYW5rcyBmb3IgeW91ciB0aW1lIEFuZWVzaCwKCkFsZXgKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0 CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK