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[141.146.126.79]) by mx.google.com with ESMTPS id t1si7424095plo.371.2019.03.08.11.06.20 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 08 Mar 2019 11:06:20 -0800 (PST) Received-SPF: pass (google.com: domain of mike.kravetz@oracle.com designates 141.146.126.79 as permitted sender) client-ip=141.146.126.79; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=fC6oxcMF; spf=pass (google.com: domain of mike.kravetz@oracle.com designates 141.146.126.79 as permitted sender) smtp.mailfrom=mike.kravetz@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x28IxXbi076674; Fri, 8 Mar 2019 19:05:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=iNw+1Pkhe5J5ZGLMUPt5A+xkhv7bHoIoSqlJ28oJklA=; b=fC6oxcMFe3aedswwYjUt3YGCRHcTEApkEJ3pHGxc7CBgzbQZWAgx6C7QL12S6pFz/kBN W8eVQ3L6xRc2eWZcfrY85ztNWdbet0ezZ6qqe4GyV6uoSeQn9TxT10biMLAtTis3bePz l/SSypmfrYDEVC3RHqphEKUeRw9XBh7fxqP5OAQ9oaTmkBLHiqfb+0youdlfAC2+pGHi FXnG+l4g8P2eIzB7vqICX7ATzsXPigdLInRyVRYiKDAn1v8GJJB9eUFyc2L4w9+i8AoI 3hVRzwtEz5eihwNpe9k4QQ4K/oth1FZPrLyBNpUxAUUWAmOdJK2cVe/Kv3uOaChfh4ec MQ== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp2130.oracle.com with ESMTP id 2qyfbet8n2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 08 Mar 2019 19:05:41 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x28J5XxU032261 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 8 Mar 2019 19:05:34 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x28J5S2i011046; Fri, 8 Mar 2019 19:05:28 GMT Received: from [192.168.1.164] (/50.38.38.67) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 08 Mar 2019 11:05:27 -0800 Subject: Re: [PATCH v6 4/4] hugetlb: allow to free gigantic pages regardless of the configuration To: Alexandre Ghiti , Andrew Morton , Vlastimil Babka , Catalin Marinas , Will Deacon , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , 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 , 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: <20190307132015.26970-1-alex@ghiti.fr> <20190307132015.26970-5-alex@ghiti.fr> From: Mike Kravetz Message-ID: Date: Fri, 8 Mar 2019 11:05:25 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20190307132015.26970-5-alex@ghiti.fr> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9189 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903080132 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 3/7/19 5:20 AM, Alexandre Ghiti wrote: > On systems without CONTIG_ALLOC activated but that support gigantic pages, > boottime reserved gigantic pages can not be freed at all. This patch > simply enables the possibility to hand back those pages to memory > allocator. > > Signed-off-by: Alexandre Ghiti > Acked-by: David S. Miller [sparc] Reviewed-by: Mike Kravetz -- Mike Kravetz