From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DFCF8227561; Tue, 10 Dec 2024 11:11:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733829080; cv=none; b=dYLPh6RlWkhWg2jDVrNetdzxycJNIOXV4XwKlr3c8pNU+nkiX2yVUbq4YiEJ0OTMh2W1xfganjmIwZfzDSaS2pDpkJEe49a45A/nD3TJVMPzA4FjrYl+5degpz54xzP87V8iK0NnV0T9o354R7rgYnPAewrt6NNk5Txfh50wFkI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733829080; c=relaxed/simple; bh=iLW6hTTHJgWBde6+7jTFJ09suumCOGuj4BpMGT9vrAQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZgdGAZW+wp9vj+d0Kr21ePw/mGVoRwl62f3vsgo9P052ecVpPxNumNp3euZ01XsigpTZ7KYn/NAZky7JUElwXoeWUuXDFCtmbIaj1l4xkIXW4v+waqsFrFwjp8wvEFZYa2wBclCqeakc6i/o/QtF0guptlGS3TxPlXqfteIHEPo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=K48mnW+r; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="K48mnW+r" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=bUILBoZfromCihqyWRVaFv8ULn8h6kpUAYpKGdu84rM=; b=K48mnW+roZ/GELEyybAgqBD1qx oYj2TH3BIzwxc15/FkakkJvOEXqlzsyaOzUVd9sT2lPsKQGjyJDX2DRMyDtzl7sS3YolaWtiSxL+f 7QvF6eDHgbzNaNo8vGJbxBzD8Ky8D4ioMYCrhDMjjdecVEB3Fp098IhH0751v3MEcbVjcnYAjpXPT O3w+LftlgHC8nvb7hvFRrIKnx3zpt+POL9Qz31DWYUyrbqXw43871bFZC2ruN/tjkjFRJN/y1Upb7 bg11g9Yg3twpnr5zuA55y5R8ovfCbIepP9+Av10EbbYbDNf+Ba737Xc68gyUgjTrdW+TMO9swnauX my7EqP0A==; Received: from hch by bombadil.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tKy94-0000000BGZ4-2pZe; Tue, 10 Dec 2024 11:11:14 +0000 Date: Tue, 10 Dec 2024 03:11:14 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Jens Axboe , "Christoph Lameter (Ampere)" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, hannes@cmpxchg.org, clm@meta.com, linux-kernel@vger.kernel.org, willy@infradead.org, kirill@shutemov.name, bfoster@redhat.com Subject: Re: [PATCHSET v6 0/12] Uncached buffered IO Message-ID: References: <20241203153232.92224-2-axboe@kernel.dk> <668f271f-dc44-49e1-b8dc-08e65e1fec23@kernel.dk> <36599cce-42ba-ddfb-656f-162548fdb300@gentwo.org> <20241204055241.GA7820@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20241204055241.GA7820@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Tue, Dec 03, 2024 at 09:52:41PM -0800, Darrick J. Wong wrote: > RWF_DONTCACHE, to match {I,DCACHE}_DONTCACHE ? ;) > > They sound pretty similar ("load this so I can do something with it, > evict it immediately if possible") though I wouldn't rely on people > outside the kernel being familiar with the existing dontcaches. FYI, another word for dontcache. uncached just has too many conotations in the kernel context.