From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-152.mta0.migadu.com [91.218.175.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B1DD481B1 for ; Sun, 30 Aug 2026 00:53:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.152 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788051209; cv=none; b=uYcCbinXwBwPVPnHsHr+bUUMLibd4cXgqV7K0GFnOqkSHxhY8CRrGRqe+6pmWZnrZGTaJDDIKm58M8rG+hMfOtcQ2d9Ka1J9Uy6BClfKSm2UtCnIZMyiEmtLPO6d8zAnwxebh/Mpi7X3ESYzSFfYTSslasUcQEwj6q22qR0egVk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788051209; c=relaxed/simple; bh=fszXetNW+2890fJc/nTMASrc22mNEoZ8RTNdl5L3LRo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=azXgmGxO4j2uoDLxu1stFSJld97Tuxuy9jY6EV6JFyZYWdmzmq0Q2JGdg9Nd914TJf2wGCra+dAeJwaYrxuyUicmH9ro+G5DXUHODNv/rBZUtojABV4utLdwgqQmPs3/k8ZBlvMjb9eUw2Shl/ZiLcF5Gyg8tzL/Y85HRfTGpHk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Gn1MZAVE; arc=none smtp.client-ip=91.218.175.152 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Gn1MZAVE" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=fszXetNW+2890fJc/nTMASrc22mNEoZ8RTNdl5L3LRo=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1788051205; v=1; x=1788656005; b=Gn1MZAVEFDsEiZmnB/XwDduREr+NWTNJ0Da9MP88K4q3StgmO/LiYUjjheFq/fU1YWBeBwyS /9qmm3feoxocvd/M87c2yItvkn3O/s4MjqpNYDYiFVMU+qots2yC2dEc/F8z2lpaLZz+6q5NYlk yjYqQLsc9PZ+0RY8IxRrzBWo= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 176b837cecade791; Sun, 30 Aug 2026 00:53:15 +0000 X-Mizu-Trace-ID: 176b837cecade791 X-Migadu-Flow: FLOW_OUT Date: Sat, 29 Aug 2026 17:53:14 -0700 From: Shakeel Butt To: Andrew Morton Cc: Michal Hocko , Tao Cui , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, hannes@cmpxchg.org, roman.gushchin@linux.dev, muchun.song@linux.dev, Tao Cui Subject: Re: [PATCH] mm: page_counter: reject empty string in page_counter_memparse() Message-ID: References: <20260817042652.74136-1-cui.tao@linux.dev> <9bd74181-2ce4-4d69-a353-614685559ceb@linux.dev> <20260829174220.204771edba7c52511dc08641@linux-foundation.org> 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-Disposition: inline In-Reply-To: <20260829174220.204771edba7c52511dc08641@linux-foundation.org> On Sat, Aug 29, 2026 at 05:42:20PM -0700, Andrew Morton wrote: > On Wed, 19 Aug 2026 09:00:36 +0200 Michal Hocko wrote: > > > > Whether that benefit outweighs the compatibility risk is not mine to > > > decide. > > > > And I am still not convinced. I do understand your frustration from the > > debugging the issue. In any way, if other maintainers decide this change > > is worth I will not stand in the way. > > Shakeel seems OK with it. Other other maintainers are being aloof ;) > > I'll queue it for now, along with a note that additional poking is > needed. > > A v2 would be nice, please. Add details about that production incident > and make the requested update to > Documentation/admin-guide/cgroup-v2.rst. V2 is already out and we decided to make it a documented behavior. https://lore.kernel.org/20260826021753.197871-1-cui.tao@linux.dev