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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766490227; bh=Y356nykrWSoOLSfh5YSTuQ7KEeAa3+p4YJplI7gtpt4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Bp7+0Uj5Z6VN2PwEXcmIQc2WbkxYG8kryhsefYIJmIYPnYY8o90w6UX2JAubtYhjj fBSUj5KqEJpYw8kJ81qOZlCpQls5B1SHKmUG+cp9QRjlRtPS/GxilpnVO0oeJsFhh0 zpt35Rfs7wEpcjroz4hRRUAfPWdl4TmZ8biix0Eni2qLTjfyXRIbVKoacsc20ADOyt KtOUj3Lc0LkCMZcWCBPQjQWIkBMyhkyl0Q2SI8TqIeWkTTBxIxFgeEXzoQqUMzJ0C7 lSF3JsFbuzMqS9nWP3rV8QXPHDJtLQFnf0UWcxlqVQ2wqbWDUNFSH78aHXUtTl1QZZ KKfmU+sjJ/a9Q== Date: Tue, 23 Dec 2025 06:43:45 -0500 From: Sasha Levin To: Andrew Morton Cc: SeongJae Park , "David Hildenbrand (Red Hat)" , "Ritesh Harjani (IBM)" , Sourabh Jain , Borislav Petkov , Christophe Leroy , Heiko Carstens , Ingo Molnar , Madhavan Srinivasan , Michael Ellerman , Muchun Song , Oscar Salvador , Thomas Gleixner , Vasily Gorbik , linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, x86@kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6] mm/hugetlb: ignore hugepage kernel args if hugepages are unsupported Message-ID: References: <20251221104907.032abf56c67f3e50c9c94e31@linux-foundation.org> <20251223013045.4579-1-sj@kernel.org> <20251222183055.88c3cc1f0705c1dc29c7f011@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20251222183055.88c3cc1f0705c1dc29c7f011@linux-foundation.org> X-Rspamd-Queue-Id: 55E8640005 X-Stat-Signature: 3c7m46yij98kn36qkpz49w8yfbrzk6ff X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1766490228-605383 X-HE-Meta: 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 Y/WHgjGz b2E0SRo9fEFwIBKYGjpHLZogVyg== 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: List-Subscribe: List-Unsubscribe: On Mon, Dec 22, 2025 at 06:30:55PM -0800, Andrew Morton wrote: >On Mon, 22 Dec 2025 17:30:44 -0800 SeongJae Park wrote: > >> On Sun, 21 Dec 2025 10:49:07 -0800 Andrew Morton wrote: >> >> > On Sun, 21 Dec 2025 10:22:44 +0100 "David Hildenbrand (Red Hat)" wrote: >> > >> > > > >> > > > My main concern was - >> > > > A fixes tag means it might get auto backported to stable kernels too, >> > > >> > > Not in the MM world -- IIRC. I think there is the agreement, that we >> > > decide what should go into stable and what not. >> > > >> > > Andrew can correct me if my memory is wrong. >> > >> > Yes, -stable maintainers have been asked to only backport patches where >> > the MM developers asked for that, with cc:stable. There may be >> > slipups, but as far as I know this is working. >> > >> > I don't actually know how they determine which patches need this >> > special treatment. Pathname? Signed-off-by:akpm? >> >> I guess it is pathname, based on ignore_list file [1] of stable-queue repo. >> >> [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/ignore_list#n16 >> > >Oh, that's a bit sad. > >- other trees sometimes mess with mm/ and they probably aren't aware > that they need an explicit cc:stable. > >- misses drivers/block/zram and probably various other things that > the MM team maintains. > >Oh well, I guess simple mm/* coverage is good enough. But I do worry a >little that useful fixes coming into mm/ via other trees without >cc:stable will get missed. How should we improve the filter? mm/ AND signed off by akpm? -- Thanks, Sasha