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 29723332EBC for ; Thu, 25 Jun 2026 22:50:46 +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=1782427848; cv=none; b=HnQj/mXz3uNs8LYN+t4Jls56cYlHj/xDYqNuaCVkVuBswFQeIrdb3qweQExF/oHLusfbvf/qdO6/MfvvXNdyd8O37xxcwGIfppXakiv30Wc12Vtugrmkkke2LZy4oW0HCH0WeiisFuXee7EhPsaptNu4HJZm+hAppvWZwKkc2pA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782427848; c=relaxed/simple; bh=4i/hkwiXzc6LEt/RaugbAFVulcLC7OclXfGCLNhDwHo=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=sbGj7clwHxds4qWWBTZRN6FYfBdYQTzwaYSMvxMDmr5kk9S8U/05SKVBdVAcawgOY6Sy+aKkpanwRTGXj48zo8zp6pa/LmGfjg7uGraHVDfV4iHoo872FuDD2Mo1eWCfXYAm7hNW6UkmItapfewKjmzfgmECdbH+zfaN6cGoaGM= 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=mNBN0j7G; 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="mNBN0j7G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 190451F000E9; Thu, 25 Jun 2026 22:50:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1782427846; bh=dxugoFo5bqWGfuAQPpw10nJpdmlXTDTiQ5GmXQgQaLU=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=mNBN0j7GgpctvyjQ2w5f06YNcCpyBHNU/r3g5vXcwPiMNl//R/ET/M9fG0Fjkx33u 2nYBBjFz1uqrRpWFg2M47qQerTeWwfuyFTo1qA1zaoASYMy+5e1RjrXVTNqku7lXwu Ipu97B2gCfWaxtsESsQrF7qElwx+XkqOvebxDNRw= Date: Thu, 25 Jun 2026 15:50:45 -0700 From: Andrew Morton To: "David Hildenbrand (Arm)" Cc: Brendan Jackman , Zi Yan , Brendan Jackman , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Johannes Weiner , "Harry Yoo (Oracle)" , Gregory Price , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mm/page_alloc: drop flag-conversion "optimisation" Message-Id: <20260625155045.b1e2262c552e5a5e0116f884@linux-foundation.org> In-Reply-To: References: <20260615-gfp-pessimisation-v2-1-65f1319e6818@google.com> 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 Fri, 19 Jun 2026 16:53:41 +0200 "David Hildenbrand (Arm)" wrote: > On 6/19/26 14:34, Brendan Jackman wrote: > > On Fri Jun 19, 2026 at 12:27 PM UTC, Zi Yan wrote: > >> On Fri Jun 19, 2026 at 7:53 AM EDT, Brendan Jackman wrote: > >>> > >>> Hi Andrew, > >>> > >>> This one didn't make it into any of the latest mm-* branches, is > >>> anything blocked here? > >> > >> It is in the quiet period, no patch will be picked up until -rc1 is > >> out. If yours is not picked up then, feel free to resend it. > > > > Ah, I thought mm-unstable didn't care about merge windows. It got > > updated 2 days ago, but now I realise that's probably just coz Andrew > > was updating mm-stable and then rebased onto it? > > > > Thanks for clarifying. > > We're targeting for mm-unstable to only have material that is already upstream > at the end of the merge window. What they all said ;) Officially (and for good reasons) we aren't supposed to add new material to linux-next until -rc1 is released. mm.git has the mm-new branch which isn't included in linux-next so after MM is all merged up I start working through the backlog which I accumulated during quiet-time and merging some of it into mm-new. Backlog was ~1700 emails this time. Most of which gets skipped for various reasons, This particular patch looks nice to me. Code is cleaner and the change reduces page_alloc.o's .text (x86_64 defconfig) from 46571 to 46443, which is a good sign. So I'll add it, along with a "needs more review" note. Thanks.