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=-3.7 required=3.0 tests=DATE_IN_FUTURE_06_12, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 9F3ABC2D0BF for ; Mon, 16 Dec 2019 12:44:52 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5EC72206D3 for ; Mon, 16 Dec 2019 12:44:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5EC72206D3 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=vmware.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 04B3D8E0007; Mon, 16 Dec 2019 07:44:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F3DEA8E0003; Mon, 16 Dec 2019 07:44:51 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E533B8E0007; Mon, 16 Dec 2019 07:44:51 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0082.hostedemail.com [216.40.44.82]) by kanga.kvack.org (Postfix) with ESMTP id D00718E0003 for ; Mon, 16 Dec 2019 07:44:51 -0500 (EST) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 8298E181AEF07 for ; Mon, 16 Dec 2019 12:44:51 +0000 (UTC) X-FDA: 76270973982.07.boats76_2a5a07ff2a060 X-HE-Tag: boats76_2a5a07ff2a060 X-Filterd-Recvd-Size: 2976 Received: from EX13-EDG-OU-001.vmware.com (ex13-edg-ou-001.vmware.com [208.91.0.189]) by imf10.hostedemail.com (Postfix) with ESMTP for ; Mon, 16 Dec 2019 12:44:50 +0000 (UTC) Received: from sc9-mailhost3.vmware.com (10.113.161.73) by EX13-EDG-OU-001.vmware.com (10.113.208.155) with Microsoft SMTP Server id 15.0.1156.6; Mon, 16 Dec 2019 04:44:48 -0800 Received: from akaher-lnx-dev.eng.vmware.com (unknown [10.110.19.203]) by sc9-mailhost3.vmware.com (Postfix) with ESMTP id A3F70401D3; Mon, 16 Dec 2019 04:44:44 -0800 (PST) From: Ajay Kaher To: CC: , , , , , , , , , , , , , , , , , , Subject: [PATCH v3 0/8] Backported fixes for 4.4 stable tree Date: Tue, 17 Dec 2019 02:15:40 +0530 Message-ID: <1576529149-14269-1-git-send-email-akaher@vmware.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain Received-SPF: None (EX13-EDG-OU-001.vmware.com: akaher@vmware.com does not designate permitted sender hosts) 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: These patches include few backported fixes for the 4.4 stable tree. I would appreciate if you could kindly consider including them in the next release. Ajay --- [Changes from v2]: Merged following changes from Vlastimil's series [1]: - Added page_ref_count() in [Patch v3 5/8] - Added missing refcount overflow checks on x86 and s390 [Patch v3 5/8] - Added [Patch v3 8/8] - Removed 7aef4172c795 i.e. [Patch v2 3/8] [1] https://lore.kernel.org/stable/20191108093814.16032-1-vbabka@suse.cz/ --- [PATCH v3 1/8]: Backporting of upstream commit f958d7b528b1: mm: make page ref count overflow check tighter and more explicit [PATCH v3 2/8]: Backporting of upstream commit 88b1a17dfc3e: mm: add 'try_get_page()' helper function [PATCH v3 3/8]: Backporting of upstream commit a3e328556d41: mm, gup: remove broken VM_BUG_ON_PAGE compound check for hugepages [PATCH v3 4/8]: Backporting of upstream commit d63206ee32b6: mm, gup: ensure real head page is ref-counted when using hugepages [PATCH v3 5/8]: Backporting of upstream commit 8fde12ca79af: mm: prevent get_user_pages() from overflowing page refcount [PATCH v3 6/8]: Backporting of upstream commit 7bf2d1df8082: pipe: add pipe_buf_get() helper [PATCH v3 7/8]: Backporting of upstream commit 15fab63e1e57: fs: prevent page refcount overflow in pipe_buf_get [PATCH v3 8/8]: x86, mm, gup: prevent get_page() race with munmap in paravirt guest