From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 77B853B83EF; Fri, 10 Jul 2026 08:51:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783673477; cv=none; b=RPAOnK2A7KeruIaJUNhm1SXYD40bPxVIS9oIEGzdaCd1UjAGDH9agr4AFeZcN1mbWoY8jn6kTuSyeJf2qKqcKYWMIwBABsS+JEMZPAb1tqeQnbcnioBwiV2I8Ys9XV3i93h9Ux0IsZnQNDW2iGaOgWzUcz1DuaJbTI/lSBQOf4M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783673477; c=relaxed/simple; bh=hAjtZuJApJgFbgnUiOBmxIzFgh7XePbaCXBszR470WM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=fd9T7pqucek7n5gahHxwr/0GBn3a3HlYkes6TxnjQv2JY5lH6bTEvssIqQYVFJbhnmtjQ/FcGs9yc2X678aNgNJ8ceR3eLEh6V4YSB8NbB9MlMiP7wr8m/J0eRZhGY2aS5InXAnq2z8KsoAtfklg4QP26ItwYy3OKznVf/NVI+c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ETskqg1Q; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ETskqg1Q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8CCC21F000E9; Fri, 10 Jul 2026 08:51:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783673476; bh=l541v1EFpOsT9TcOT7hmekqkweb22uc4jP4hT/F8g+0=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=ETskqg1QJvbGYjExd/I0ja12H+y5nv0eE4PHNgDPS/o9S4X01yU3/0KX6oxIEQ+TH 3xPMY6bKrpbsYU8OSbQ5HnhYx/MD3teIiBCdvz+hWKgcLS+cEuOh9XALOtWQquVG3e 9NMpFftxlmMbBUL03UVKSrwRGcO5AzaWTX8ZY0SuhHeXmz9upY83Fwlp0DnM5pCF0b Iiw1ke6R6wLnT491xuGSprUl8dTcsbqO0i+t09PGv827RSM6IoWiChD9RMnGKiIk/B E0IKJ4q0EU3VMyDhXNk9I3Us5tYJDbkIqMO+x0qTYGASlA6pvJpFbqYxMfGy/HBg36 gRJdbyuoQ6rkA== Message-ID: Date: Fri, 10 Jul 2026 10:51:01 +0200 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 00/18] mm: Some cleanups for page allocator APIs To: Brendan Jackman , Andrew Morton Cc: Suren Baghdasaryan , Michal Hocko , Johannes Weiner , Zi Yan , Muchun Song , Oscar Salvador , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Mike Rapoport , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Ying Huang , Alistair Popple , Hao Li , Christoph Lameter , David Rientjes , Roman Gushchin , Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt , "Harry Yoo (Oracle)" , Gregory Price , Alexei Starovoitov , Matthew Wilcox , Hao Ge , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, derkling@google.com, reijiw@google.com, Yosry Ahmed , JP Kobryn , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Sean Christopherson , Paolo Bonzini , kvm@vger.kernel.org, Thomas Gleixner , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Robin Holt , Steve Wahl , Arnd Bergmann , Greg Kroah-Hartman , Dimitris Michailidis , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni References: <20260703-alloc-trylock-v5-0-c87b714e19d3@google.com> <997c1a4d-ee99-4214-be58-7ceb3b9b9a36@kernel.org> <20260705003039.c9b4bd681c059f62b375051a@linux-foundation.org> From: "Vlastimil Babka (SUSE)" Content-Language: en-US Autocrypt: addr=vbabka@kernel.org; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSNWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBrZXJuZWwub3JnPsLBsAQTAQoAWhYhBKlA1DSZLC6OmRA9UCJPp+fM gqZkBQJqFFy6GxSAAAAAAAQADm1hbnUyLDIuNSsxLjEyLDIsMgIbAwUJGtCBUAULCQgHAwUV CgkICwUWAgMBAAIeBQIXgAAKCRAiT6fnzIKmZJIUEADFx/tREzUImHrEwVHeSvDFmA7tJysI UVrlvrM09E7GIuzphzv7jYmo8n3ANpCczLEVr4G0syYQdTigaZgv3+FQDIIzhKih1IHhu1Ei XHlywNWKnQxxQEUNi5Mwx43wQz5XVw9F1A7gtKBKNtfogO511hAbrzagrYajyQacEJ/+sfhZ 9Da8ltHIXD8pcYaHUfQgEusCgmEd9+KrUwrTbckFKmYq5chuE6yJ4J0EmWknL096jIE6CnzF FRslQ3B1UKDjxVsm1ZHfir5NeWszLkTvGFsddFaWTgh8UycESG6VQzKXjjewXu2pG7YQYRpj QKm1W5X2TkwWkXRBZTmfmbhxIUMh3+zf5wQ463rSmDN/8v81tdqBtAW6rH/kzg1GvkaTHXn0 507yEHFzBksk2viAuIxxr7km8+/KARYLIdGtx30EG8cKzAUZOK6WqxtNCsXUJNrVE8CWrCaD icoNu7Fs1c5hmPHdSTnU48ce67449DdnO4neLSNhRiGlMHJgfJUmgrxu/hcYeOZ3haWmEQ2w uW1Mh01OHi8QZHCEyAbABrPs9GUgccc/4eYXX9hIgxfSkYzn8f+8NuIFPWl/0uTvjgqU29FQ SbzOLxHq9439Ox40G5mS5eZXRGxITYR+6TXvRGI6P/264jvflnr/pDGUttaikU+0W+1uxgKH cmYbEc7ATQRbGTU1AQgAn0H6UrFiWcovkh6EXVcl+SeqyO6JHOPm+e9Wu0Vw+VIUvXZVUVVQ La1PQDUi6j00ChlcR66g9/V0sPIcSutacPKfdKYOBvzd4rlhL8rfrdEsQw5ApZxrA8kYZVMh FmBRKAa6wos25moTlMKpCWzTH84+WO5+ziCTsTUZASAToz3RdunTD+vQcHj0GqNTPAHK63sf bAB2I0BslZkXkY1RLb/YhuA6E7JyEd2pilZOrIuBGl/5q2qSakgnAVFWFBR/DO27JuAksYnq +aH8vI0xGvwn75KqSk4UzAkDzWSmO4ZHuahKtQgZNsMYV+PGayRBX9b9zbldzopoLBdqHc4n jQARAQABwsF8BBgBCgAmAhsMFiEEqUDUNJksLo6ZED1QIk+n58yCpmQFAmfIHFQFCRYU6J8A CgkQIk+n58yCpmS2PA//bqN1LfcotmArgElsa+0EGZSQlYgK48pm8WAeTXTngudP9IJ4SuKY HR5RNjHcBeqN+Me0zxRqYzRb8nGanHEkDyf4Im8DQM8d6vbyU+FcPmG4skud4kgS1zMHnlVd SXfSIwKC/hKgdHG8aBV7545Lz9X6Iohea+94wneD0aw/hqF+QWewGZhWJriWAZtvEkzNjQOi 4U9F/trLten/x7bpphDSnDMKJtITbtzATT1Dq7o7VpIUK1nCTQALMuMjKCdi8OdU/+V+R3O4 0PXWvX8qrvqYapVbZ+9KqT74FsuB0Ya9uXwgBF2Q6cRuETZk5vqaqKxzqoQZCO8AOz/58j6O 2RHNy/mZEN+7tJ5Tsq42zVJ4jxsT8b9YplavCMsnBgDeRWhcbYhCyttoL7nYISyWg4kQYZ/P wIV3OuNv2f8iKYsxNsRuClOAF82+gvqOy1/1pprFjy8uo2pkoOrb63aOP3vO5VHnRKgra6dq NcaZ+c6J4H+nEJGi2SkHAUJz5oBzuThvPudLvPA/SK8sKoM01IRxSihev/S/5WLazXB1PGem OCbvzC1IjWJJraxiDJ5IygokapUa2RP7+WBR22skQ3SSl6G107QgWKSyTOGWEaRmV53vxQLV jXuCmzSSasTL60zq5yGrT4/DYQVSNEUiUbG4pYekxJujNeEDkUlky0Y= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/10/26 10:36, Brendan Jackman wrote: > On Sun, 5 Jul 2026 at 09:30, Andrew Morton wrote: >> >> On Fri, 3 Jul 2026 14:47:32 +0200 "Vlastimil Babka (SUSE)" wrote: >> >> > On 7/3/26 14:31, Brendan Jackman wrote: >> > > Based on mm-new. >> > >> > Seems ready for mm-new to me. I suspect most further non-trivial page >> > allocator work will conflict, so better have it in mm to be based upon. >> >> OK, thanks, added. >> >> I also added some little notes to track Zi Yan's comments. > > Thank Andrew. In this instance, what's the best way to send updates, I > guess now they're in mm-new it's best to just send them as fixups for > you to squash? In reply to the thread? > >> Sashiko had things to say, mainly pre-existing things. >> >> https://sashiko.dev/#/patchset/20260703-alloc-trylock-v5-0-c87b714e19d3@google.com >> >> the xpc_create_gru_mq_uv() issues look like facepalms. > > Oh actually I didn't see the point about the alloc_pages_nolock() > comment before. Other than that, yeah all of those comments have been > discussed during the reviews, or are brokenness in totally unrelated > code. > > There is this where we should probably make a decision (also a > pre-existing issue but this time in mm/page_alloc.c): > > https://lore.kernel.org/all/DJOTMGFAPDBF.261U5OD4NPU74@linux.dev/ I think we can fix that in a follow-up patch. Tag it with Fixes: and stable and see what happens. We shouldn't have to rearrange everything for small fixes first just if it's just about !SMP.