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 E5C5B3B38BE; Mon, 20 Jul 2026 14:46:05 +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=1784558768; cv=none; b=TuzQSkyejmKEL7YVRrzsnw7AQuwFGx1tZR6Np9xl83AwZZENf2B8oaIP5NQ1R6ukYHQJx87Dvs2LvC6ymh3VwHxymBy1fgEID0T6lwWm87wFMWec1r0TnbMVp0Xkl1cCWc95Lk2u1i3rhG4JEeSu3FzWNWEldNXUc0eITGfQfZs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784558768; c=relaxed/simple; bh=cJPu87nvYn3Xixn1rwDNcQAJzUhbR08LjTyaw+GT+QI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=R6ic3hgXdDb8D9JTAja4iWRtb1eFltJ+iMbUhWaJTewfZMVhFIARke+FwazKCuJFNLJnMjpgtzzbRUc5Q6O4ek+0fK+LyvLW9XH0F1FfGd9trszafMz6CV4nufUIGZCVjMWxjBl5K2jT5i2Wowz2nQcQO9NEVfGqJw5UJKKEit4= 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=q4gTrKD/; 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="q4gTrKD/" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PfRAFhBZQchppXOO+Jgr0cSkDMbt1DF4C/TUagsgCiA=; b=q4gTrKD/JHkF9rdgVeJRopM9/L urB9FO9pjuI91E3n7c9jeYmhfBQk91aQcrjjO1TtyyNPydmLVGxvVs8GYqpkhU6xWo+Hks5uvS6sB lbHDdqdJUCjuYiG8mU+GU49oC7mnX3Kj2F6mfBWxhopOLY7hye2br5fU7IrywpKGXRzGUth0DCKqO 83YobtUbSGP3EUD1DQkEyI0UuUvTT/LFgFWKV0uhYRaMArtJ9d8bjgZRIC4ZiJqYnK1EvgzzFLcab 03iYunE5zqja9kzp9HTj1eUqgezn+yrRqb7Fy3L6X8ZPqqAF9rs3rAq2uuSLtzcM6NlT1/E509PwL LAH7i8BA==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlpFo-0000000B90V-2Ozj; Mon, 20 Jul 2026 14:46:00 +0000 Date: Mon, 20 Jul 2026 15:46:00 +0100 From: Matthew Wilcox To: Christoph Hellwig Cc: Mark Brown , Andrew Morton , Linux Kernel Mailing List , Linux Next Mailing List , Matthew Brost , Hugh Dickins , Baolin Wang , linux-mm@kvack.org, Christian Koenig , Huang Rui , dri-devel@lists.freedesktop.org Subject: Re: linux-next: manual merge of the mm-unstable tree with the drm-misc-fixes tree Message-ID: References: <20260720144141.GA16699@lst.de> 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: <20260720144141.GA16699@lst.de> On Mon, Jul 20, 2026 at 04:41:41PM +0200, Christoph Hellwig wrote: > > /** > > - * ttm_backup_backup_page() - Backup a page > > + * ttm_backup_backup_folio() - Backup a folio > > * @backup: The struct backup pointer to use. > > - * @page: The page to back up. > > - * @writeback: Whether to perform immediate writeback of the page. > > + * @folio: The folio to back up. > > + * @order: The allocation order of @folio. Since TTM allocates higher-order > > + * pages without __GFP_COMP, folio_nr_pages(@folio) would always > > + * return 1; the caller must pass the true order explicitly. Wait, what? This is just broken. TTM should change to allocate using GFP_COMP. Why can't graphics people ask questions before writing stupid patches?