From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 7C47225A2BB for ; Fri, 12 Jun 2026 04:54:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781240065; cv=none; b=TdGKQTkym4kk9N74V+9fRvH8e3XteidRiDZ7/+IMvJ55sWGPhtMEP2h9KMavUFEAcTSuxaB+HzfITBQaCjOmbq4AuZ38nKNSgEZKgPuIBLS1RvYkBIdkPUld3BjrkLqnur2aKqiwa4bglNxAXpA3V5WUml037J7VojuVc5il0K4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781240065; c=relaxed/simple; bh=zVUEzBt1FdRj9t/G/syHe2ZLez5ad24xa9A+b+Azxn4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bu+pc8L7qQlNEsKt73ajM9aujhMeglglA9jcUD49NWzb+FIWowpDCGCyG2gZjtNoaVFW7D2nPUTxMaKV7MFBnbCuHPtnswc1diiGYUyv2ek5++JwhoTqgCwtrYgnJrYkuqiNDgALG61RqRAlzr6gRvTSsEsgz3YWHGjXoNmqpes= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=qut1p4kO; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="qut1p4kO" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description; bh=Ak41LSJW9MpSew5QO6CgWjqhI0vYzTvnZXAjs8LelSc=; b=qut1p4kOHmkFpq1us+pZAKAJNn VHva16KxALkYzQ470Zy3oPzZmu3fzRUX9HgH+P6b6gqYCDtpo43voWn5m1Onqe5u0fQVlqBAQWjbn lRe3uXgla18xDLx4fBmJe8iiJKjWCBmGUFOlMrvUVHFkoib0Qo5NPhE7mdZCBeAefMtlnVP47uVIa q9iAR9vQuFSoHA0I57kQlLWyx7zRjJLNRN8WMQRnzrz55Wr2AjgTz28nEBRW7IAD18UTDYarrrQOK plQZ+58vSnkCqX80uJvt1LhsuEgeYNokZvHbLvy6K2xNXYUAZI3CGIRmF9z2ghR/r6bO8PzrSa8uO BWo5jL7A==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wXtu8-000000038zY-2FLR; Fri, 12 Jun 2026 04:54:04 +0000 Date: Fri, 12 Jun 2026 05:54:04 +0100 From: Matthew Wilcox To: Zhaoyang Huang Cc: Zi Yan , jaegeuk@kernel.org, Chao Yu , "jyescas@google.com" , "David Hildenbrand (Arm)" , "zhaoyang.huang" , Andrew Morton , Lorenzo Stoakes , Barry Song , Baolin Wang , Lance Yang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , linux-mm@kvack.org, linux-kernel@vger.kernel.org, steve.kang@unisoc.com, xiuhong.wang@unisoc.com, hao_hao.wang@unisoc.com Subject: Re: [RFC PATCH] mm/huge_memory: do not add dropped split tail folios to LRU Message-ID: References: <20260610120535.2370844-1-zhaoyang.huang@unisoc.com> <4348A64F-30F9-4497-A839-A80BCFFCFFE0@nvidia.com> <2F9A72CC-772C-4691-9F18-77306EADC6CB@nvidia.com> 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Fri, Jun 12, 2026 at 11:59:44AM +0800, Zhaoyang Huang wrote: > On Fri, Jun 12, 2026 at 11:44 AM Matthew Wilcox wrote: > Thanks for heads up. Could you please help in checking if this is a > real problem? > > patchv2: > https://lore.kernel.org/linux-mm/20260612023456.2424044-1-zhaoyang.huang@unisoc.com/ Since we haven't seen this problem with any other filesystem, I expect it's something that f2fs is doing wrongly.