From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=213.95.11.211 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793276237; b=WuBYyFZ4sGQz7bby3AKaWrUho7sXN7+aEXF9UCHmvNiOOx9j0T31X1xb0MsdDibonvC1 crWRFbSV+r3Hj7z9242xt99s+yzcWTJvcIcjI2NjHkzv5kNuINIDNB1ni6FquPLOVd65J S0AVFV4vtguud+qY7ir+RwSvzVojB/dzCYfV57pEqn07u+3qXWm6JOg4FnbtUiek6z/7S fMA7p4HZMYz/KCz/W8Jr/wIuYkpPFR5WI3Nf4FgApKnxtz+VIQwQZsNdmYxsXQMp8uRuv ZVuX3hUlira7R8D6jJee+xcT85/8M4Sc6yfWH3v2nGKyKLkl/C+Bzh9DgPrQbScCZ1w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793276237; h=DMARC-Filter:Received:Date:From:To:Cc:Subject:Message-ID:References: MIME-Version:Content-Type:Content-Disposition:In-Reply-To:User-Agent; bh=rdj4FDEy6WzQ7Loxo6AfInFROqOgDeI/IwQhhy4RHXE=; b=uG24FPk/SwjtOtaK6DKAEN5D54SoK3XhJ10X9EmgFQ08hYIOo6d0+Eqty1LqMPXxLc/r sw3Mf2yz/5lS7yxu41ZUHujF26OWq6g/oYhKDIkWpTV3BBx5k/pPccpKfGziJWCY3Qebq A24x6ZGkNr6wbDsprgV2yOyUrTTB85WFKNqFg4fPYTOcAVWirQzdIWOO4Ghj4vnEdLc8W zHFO/WlT2x1PEK5JystRCqG4EuCycR8ThAfUm+LuxcP58A0Mr9vfm5E0zCnR36Cs1WsmQ 6uF78fkSgdjpt26lkWoWuZirtm/AhpvJvlUoLP/3gS6twmvzoiqnHvhhHjcIgMmLxEA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.remote-ip=213.95.11.211 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 03F9C606A326; Thu, 29 Oct 2026 12:17:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 03F9C606A326 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 6026368BEB; Thu, 29 Oct 2026 13:17:11 +0100 (CET) Date: Thu, 29 Oct 2026 13:17:10 +0100 From: Christoph Hellwig To: Andrew Morton Cc: Christoph Hellwig , Salvatore Dipietro , hannes@cmpxchg.org, abuehaze@amazon.com, alisaidi@amazon.com, blakgeof@amazon.com, brauner@kernel.org, brendan.jackman@linux.dev, david@redhat.com, dgc@kernel.org, dipietro.salvatore@gmail.com, djwong@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-xfs@vger.kernel.org, matt@readmodwrite.com, mhocko@suse.com, ritesh.list@gmail.com, rvvandan@amazon.com, stable@vger.kernel.org, surenb@google.com, vbabka@kernel.org, willy@infradead.org, ziy@nvidia.com Subject: Re: [PATCH 1/2] mm: page_alloc: do not give all non-blocking requests reserve access Message-ID: <20261029121710.GB24651@lst.de> References: <20261027150002.318916-1-dipiets@amazon.it> <20261028144148.GA14023@lst.de> <20261028225517.75e13881be22461a8c94e07d@linux-foundation.org> X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261028225517.75e13881be22461a8c94e07d@linux-foundation.org> User-Agent: Mutt/1.5.17 (2007-11-01) On Wed, Oct 28, 2026 at 10:55:17PM -0700, Andrew Morton wrote: > > It would be really important to get some fix for this into 7.3. > > We can still perfect it later. > > What is "this"? You're referring to the performance regression which > Salvatore's "mm/page_alloc: avoid direct reclaim and compaction for > costly __GFP_NORETRY allocations" addresses? As in I don't really care how the xfs/iomap performance issue gets fixed, I just want it fixed yesterday.