From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E523319004A; Wed, 4 Mar 2026 12:32:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772627564; cv=none; b=Qqngzr1ogLtk2fAMRntUPeqCW03wVTsRh7lJU+DqztoLKpfC4e49+fPqXRsg6ONAk/0hJZZauoB0dBx3PXQ69P6zhRSbqOq3KHyCvSrhA+3e7+KI4Pxo7UP4p6eysGtRu8+Il9+cMP2cixQ2CpB5Wb5lJ+aqToi0F+acnuhig/c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772627564; c=relaxed/simple; bh=e83BLM5GvLOSGz2uXBojTED9JFHiqSjMgXE8Lu25qK8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QLMQ0ONFGx+ZeOV/KiaVFz0ICMxkdZ/gxWhhhgFr28Gr9uTLMV9RKAPVwdI5j0TKcvOcSv2GZumEZwZAahtrrrs5g3s+r0CTf9eEkt0S09EMpzUvQeaH96GUCEGUiUq1byuNG6JP6w82jY0XUfT2Y8BilnEBtm25y/IR8A8tJRk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=O5HZ9ZXC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="O5HZ9ZXC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EC92C19423; Wed, 4 Mar 2026 12:32:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772627563; bh=e83BLM5GvLOSGz2uXBojTED9JFHiqSjMgXE8Lu25qK8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=O5HZ9ZXCJqHwto+K5TFar84RC/tF8oNzANWMk/pDTUv0yJW8zjeLJacXbuLVY3Xr1 9fkVHSKfuzVaATC6KcP4bJBtD8p7xm0HmEXyxf+kH/slGw+wp9sTxWhhWTjK4S2y90 C4ycuiLzzeab0IYT1W06GcB2c0bw/oaa5k3o7ZhXK1Ty7Vi48HNCNwwnfIM9Ywmner mlqK0IhGLn6Ady683UiqkEk5BAzJ4r+nasY/agjsM9bTZVEBCFgsaiQula10UbtIJo UVTGmS8PhJknVNsogbZWNgSsN9uPDBXfi8bl6orUalEer0ct1mZsEBEvrP2u+6VVmN k7I44NAJRlW2w== Date: Wed, 4 Mar 2026 13:32:37 +0100 From: Christian Brauner To: Jan Kara Cc: linux-fsdevel@vger.kernel.org, Al Viro , linux-ext4@vger.kernel.org, Ted Tso , "Tigran A. Aivazian" , David Sterba , OGAWA Hirofumi , Muchun Song , Oscar Salvador , David Hildenbrand , linux-mm@kvack.org, linux-aio@kvack.org, Benjamin LaHaise Subject: Re: [PATCH 0/32] fs: Move metadata bh tracking from address_space Message-ID: <20260304-badeort-amtieren-d02d2e06f2c5@brauner> References: <20260303101717.27224-1-jack@suse.cz> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260303101717.27224-1-jack@suse.cz> On Tue, Mar 03, 2026 at 11:33:49AM +0100, Jan Kara wrote: > Hello, > > this patch series cleans up the mess that has accumulated over the years in > metadata buffer_head tracking for inodes, moves the tracking into dedicated > structure in filesystem-private part of the inode (so that we don't use > private_list, private_data, and private_lock in struct address_space), and also > moves couple other users of private_data and private_list so these are removed > from struct address_space saving 3 longs in struct inode for 99% of inodes. I Yes! I love it.