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[70.31.27.79]) by smtp.gmail.com with ESMTPSA id q204-20020a3743d5000000b006a6ebde4799sm5476697qka.90.2022.11.13.16.09.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Nov 2022 16:09:05 -0800 (PST) Date: Sun, 13 Nov 2022 19:09:03 -0500 From: Peter Xu To: Mike Kravetz Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Naoya Horiguchi , David Hildenbrand , Axel Rasmussen , Mina Almasry , Nadav Amit , Rik van Riel , Vlastimil Babka , Matthew Wilcox , Andrew Morton Subject: Re: [PATCH v9 0/3] fix hugetlb MADV_DONTNEED vma_lock handling Message-ID: References: <20221111232628.290160-1-mike.kravetz@oracle.com> MIME-Version: 1.0 In-Reply-To: <20221111232628.290160-1-mike.kravetz@oracle.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1668384548; a=rsa-sha256; cv=none; b=z2ghdO3p81ehpr/1bEY5msbVQGQCrftMX78wrPX1r4Ytuu9eo7hpnUC6g415aCYPz83CmX A8eTZcGkXP+rMPStivdXZ1AVJLNsbPyuiRh1GonnoaEPEfPpBl80K0j+0F3eUxUop6mL4F 2QyqIGkoLvokCg0QayMya7oPg4+Zq6Q= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=DktFyuI5; spf=pass (imf19.hostedemail.com: domain of peterx@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1668384548; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=me7e7RxjgLHoWBExT7BydjYneJHdyExPgSmmtK1wP7o=; b=g6ZzlYe6mU6gpREFmCoBxaaE/+LgOcuK/MW4SniuqPL64o3hX/fEhT25GnJgk9IQckoIV2 n3qpFOWw11piX/9f7uIToMFucO2aihiEKuNZBZ4r3LXzLJI5TBNLZFU3KgPJ7Mwy9ziBFW mJ5yoKWEC1XZL37IohqQ3SMO19nYvyc= X-Stat-Signature: yzzf1emrricnzw3yb8uidccab6zu8n4b Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=DktFyuI5; spf=pass (imf19.hostedemail.com: domain of peterx@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-Rspamd-Server: rspam10 X-Rspam-User: X-Rspamd-Queue-Id: 230EF1A0005 X-HE-Tag: 1668384547-576524 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 Fri, Nov 11, 2022 at 03:26:25PM -0800, Mike Kravetz wrote: > This series addresses the issue first reported in [1], and fully > described in patch 3. While exploring solutions to this issue, > related problems with mmu notification calls were discovered. The > first two patches address those issues. > > Previous discussions suggested further cleanup by removing the > routine zap_page_range. This is possible because zap_page_range_single > is now exported, and all callers of zap_page_range pass ranges entirely > within a single vma. This work will be done in a later patch so as not > to distract from this bug fix. > > [1] https://lore.kernel.org/lkml/CAO4mrfdLMXsao9RF4fUE8-Wfde8xmjsKrTNMNC9wjUb6JudD0g@mail.gmail.com/ > > Mike Kravetz (3): > madvise: use zap_page_range_single for madvise dontneed > hugetlb: remove duplicate mmu notifications > hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing Acked-by: Peter Xu -- Peter Xu