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[70.27.3.10]) by smtp.gmail.com with ESMTPSA id n16-20020a056602341000b00684f4b808ffsm13634ioz.39.2022.08.08.09.10.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Aug 2022 09:10:04 -0700 (PDT) Date: Mon, 8 Aug 2022 12:10:02 -0400 From: Peter Xu To: Mike Kravetz Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Muchun Song , Peter Feiner , "Kirill A . Shutemov" , stable@vger.kernel.org Subject: Re: [PATCH v1 1/2] mm/hugetlb: fix hugetlb not supporting write-notify Message-ID: References: <20220805110329.80540-1-david@redhat.com> <20220805110329.80540-2-david@redhat.com> <73050e64-e40f-0c94-be96-316d1e8d5f3b@redhat.com> MIME-Version: 1.0 In-Reply-To: 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=1659975007; a=rsa-sha256; cv=none; b=Zt75A4LrKEt5L3DxW/1oOCZ8WDaYAzPJ8lc41Bdg/PTuC1um3ri0RSP0GtZB4CB50JBOxd GvO67cCokagWO+yJUk59RgrbjadfarzQAz0/PMmIlvLwhvINzdmYw/FvcY8jycGP/eXowl k4mLDW6zKZz/J1dsdIhJTL2lbxtd2dE= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=gIRvVmFU; spf=pass (imf24.hostedemail.com: domain of peterx@redhat.com designates 170.10.133.124 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=1659975007; 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=k2rVxCQ9cERJ9mXQXAN4OFCiUy0IwjBElfQJb084200=; b=r6Qy8emAiMJq1ICDZLCLyBQwGkbSY3CoyYq7SiA4A3im0mUR0fWwICePW7tUUVRuige5Dr Nm+dLzYuQvNQ+VLcBLC5ZSAUzZyLooZHlt6gd+9eAcEW1bJxQTyb25ns7y6+soYy2NAtzd UHy9NXofEOuJDtzl3Te6a6bM8NLiEUA= X-Rspamd-Server: rspam06 X-Rspam-User: X-Stat-Signature: jdzy3448yc3iq35qeugshyiugo89po4s X-Rspamd-Queue-Id: 93BCD180185 Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=gIRvVmFU; spf=pass (imf24.hostedemail.com: domain of peterx@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-HE-Tag: 1659975007-504536 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, Aug 05, 2022 at 04:33:56PM -0700, Mike Kravetz wrote: > It looks like vma_soft_dirty_enabled is recent and not in any stable > trees (or even 5.19). > > Yes, I did start working on hugetlb softdirty support in the past. > https://lore.kernel.org/lkml/20210211000322.159437-1-mike.kravetz@oracle.com/ > > Unfortunately, it got preempted by other things. I will try to move it up > the priority list. Thanks, Mike. It'll also makes sense to forbid it if it may take time to finish, so we don't need to push ourselves. -- Peter Xu