From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-183.mta1.migadu.com (out-183.mta1.migadu.com [95.215.58.183]) (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 2E1DB19F13F for ; Sat, 7 Feb 2026 22:27:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770503224; cv=none; b=YNmkS6NqEHp35LIA7jYjP9za4nsF5g/gi+bxgSMpOWam2QIa3ZxfIpFQeZXN/zkgr1SJZOyVdmvzO35IwaOAbx9mY3nT+pOhEppJJRcuKfZAJDj7JIwCWjrk4k1WMR9PYRvF++O3NwyDk4pZ/HELoQB+z+1rJWGqhLLS1+vncNc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770503224; c=relaxed/simple; bh=q8LcLAECZm9KH8T/OVJJc4BkLb7nWZQ+8rpiE9PZ71Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=smsp++g2eu+hISOBqeFqdWbs4AzydJZm9SlFYfTwDfsyUzAJ830p64Bt20Wu98CzOOOqJZNTpPOaaJ8L3foF1eO/D/k5jsUZzDZXznwdpOIctX9Z6n4TWJDT9CRqewLT/U66JcopNmHDhKisKBqQbC4aYbf3lgfsyH66vD0tPMY= 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=M0BAedYd; arc=none smtp.client-ip=95.215.58.183 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="M0BAedYd" Date: Sat, 7 Feb 2026 14:26:43 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1770503212; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uatIfXnMXwohncvpb4GuJ6tvrwIsq7Gi4yhdTvLaFmc=; b=M0BAedYdtDfGL4RevBAr7WRnh6IHPEJoJg8oen8Ycw//6EKX2dlwevhCAGbmJu/qFSVxHS /OyV6waSTQjew2u0iGNfNO8O8zZwvvbnTXiqrSvpU+UYiLD7s85gvAkSurw2o0eLKEsBzJ wju6l5bxKCCtM7+gzN3JiZA69WqnBpw= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Shakeel Butt To: Qi Zheng Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, muchun.song@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, bhe@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Muchun Song , Qi Zheng Subject: Re: [PATCH v4 31/31] mm: lru: add VM_WARN_ON_ONCE_FOLIO to lru maintenance helpers Message-ID: References: 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: X-Migadu-Flow: FLOW_OUT On Thu, Feb 05, 2026 at 05:01:50PM +0800, Qi Zheng wrote: > From: Muchun Song > > We must ensure the folio is deleted from or added to the correct lruvec > list. So, add VM_WARN_ON_ONCE_FOLIO() to catch invalid users. The > VM_BUG_ON_PAGE() in move_pages_to_lru() can be removed as > add_page_to_lru_list() will perform the necessary check. > > Signed-off-by: Muchun Song > Acked-by: Roman Gushchin > Signed-off-by: Qi Zheng > Acked-by: Johannes Weiner Acked-by: Shakeel Butt