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 DAA2627B340; Fri, 18 Sep 2026 03:53:36 +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=1789703617; cv=none; b=KDo/Lzoqm2cTqzTya7Ii+KTCUS66TyF6uAKEH71jp0igZbbPZW5IJ6unPNbARzR17qhw2DffxYC21SyVfm7gHx90Zdzia5RE2ajl2oV9eXBO4ZGBAoqJ1hd5gF2ZPJiNje7iOjTj3Y9+eJoIFMZ7OHFqXfn+kuoxPd/0mBeAFuU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789703617; c=relaxed/simple; bh=MbQDpK3U340+Kg33aXXDXgthI8PtnTnfsxxy+PLvzEs=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=cqO0lep3O3sxyGDjfwFhEXIuE7Iw2u3j2xXYVHmbi8Tcd8e5HsXZateCvhwdgmdum1BHn8NnSuezU04oCfKdRM0uILg+p+dUO8eQEnXwaFaalBWtIyO2eWn+L6T9COQPofx6DSnn9kitwqR6vnH0dLuoHMjj9COCLrT2+SK2PQ0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=faMWUe+E; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="faMWUe+E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54D4C1F000FF; Fri, 18 Sep 2026 03:53:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789703616; bh=NyjeJYQAoIT6JPqi52GByedAXFRsvGfuaaVIMzoH39U=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=faMWUe+E92wqRxtkbgaWMXRYwf6KR2EqEIoqeW2C5x8Tk7PKPPibffuWfOOMaOnRJ mpr69blAKOn6oTolFU0h1fttVhImQOrJ+9OHLp6NW6w63EYu7M7joHbQ+8dYkv9PAo J6YjQQJYozXesL/9g+YQJEr51aieL7Rd2UoPU2X8= Date: Thu, 17 Sep 2026 20:53:34 -0700 From: Andrew Morton To: Ackerley Tng Cc: Ackerley Tng via B4 Relay , Alex Shi , David Hildenbrand , Dongliang Mu , Hongxiang Lou , Johannes Weiner , Jonathan Corbet , Joshua Hahn , "Liam R. Howlett" , Lorenzo Stoakes , Miaohe Lin , Michal Hocko , Mike Rapoport , Muchun Song , Nhat Pham , Oscar Salvador , Peter Xu , Randy Dunlap , Roman Gushchin , Shakeel Butt , Shuah Khan , Suren Baghdasaryan , Usama Arif , Vlastimil Babka , Wupeng Ma , Yanteng Si , Naoya Horiguchi , fvdl@google.com, jthoughton@google.com, rientjes@google.com, vannapurve@google.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org Subject: Re: [PATCH v3 0/4] Fix HugeTLB subpool used_hpages tracking Message-Id: <20260917205334.9ac84d529c686983ef420567@linux-foundation.org> In-Reply-To: References: <20260916-hugetlb-subpool-always-track-used-v3-0-38aae9b5ccdd@google.com> <20260916201307.5618114cbac4af52d98aecfa@linux-foundation.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 17 Sep 2026 20:05:33 -0700 Ackerley Tng wrote: > > Ho hum, complicated. Let's at least slap a Fixes: on [4/4]. My > > trillion-dollar sidekick suggests a9e443086489 ("hugetlb: disable > > region_add file_region coalescing"). > > > > Your trillion-dollar sidekick got the right patch but the wrong hash :) > > Fixes: 0db9d74ed884 ("hugetlb: disable region_add file_region coalescing") Well, I only feed it $100/mo. > I'll also reply to the last patch with the above. If there are no > further revisions required, could you please add the above tag in for > me? Shall try to remember to to that. Whack me if you see the "added-to-mm" email and I forgot. > > Our other little friend is talking to us: > > https://sashiko.dev/#/patchset/20260916-hugetlb-subpool-always-track-used-v3-0-38aae9b5ccdd@google.com > > > > I'd like to queue this up promptly because it fixes things. But let's > > seek additional review input and argue with Sashiko before taking that > > step. > > I'll copy Sashiko's comments onto this patch series in replies. :) Great, thanks.