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 CD20431F9AD; Fri, 20 Mar 2026 07:36:27 +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=1773992188; cv=none; b=LILyuwSUgaF0kip8YZDVIWujDy20XHnGvHzvpPmJANvoeSf4f0q8AOxwgbbrvBZxL4icf+RnRuts1hoXu7ovnWjW7YodB8dU9CkKSpnKiIGvArbt68jPGIsWmqCQAEIDow5UZd/wao8GO7vmFoysar+vtGp6P/hRfqAmFhSb2Bo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773992188; c=relaxed/simple; bh=rlM6c6zXGuC1RmJn9xdidyOhaBk60RenE9LfSeCBokg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WlEPtUEZ+LyRBZh6lbjJbHXMRyV2Rjo8cIt4oNu3hfTXSAnJJMpRhO6EF+hKB4uoQ5maFzeokCBl5X3yZ187Mhj9q+hc1+FgSdy4d3Hpr6h2/BdiceAJCvABiTLXta1Y5NsRNNgjtKDx/+FNbuTCofSgN8GjgSGcI24qNndg6sI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (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=iQgnS3Mv; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (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="iQgnS3Mv" 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=rlM6c6zXGuC1RmJn9xdidyOhaBk60RenE9LfSeCBokg=; b=iQgnS3MvEwGevRawNf9Ehdz+7X b/HVuhoKm8FXHht5TAmCZS23XRyjasyZHc5Z65Qy4gqimC766sh2W05pwYCFqDPiWPNaBrDshkOSZ u3aw9WgOjd+j/1jaBGP3TB81qGJWSC5UR1yApHcYzLnotvXcipm7/H+/ifgYl0yfhlinnrnLgUFwM LTrNxD8pxMwikmjW+jJxBP/1tUWYs7aqKshU1/abChLTYdqzZjdrM40tUWwdkPJPqxtgStJcfltgQ OtyJJP1/GuUYPAiQuF5macQMVo6kLjrU1MjerTy88vpNKjv/HKWyh6XaCr/oPWaXpXWyRFos0FK08 Oo5PsLlw==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3UP7-0000000CH1i-37IV; Fri, 20 Mar 2026 07:36:21 +0000 Date: Fri, 20 Mar 2026 00:36:21 -0700 From: Christoph Hellwig To: "JP Kobryn (Meta)" Cc: boris@bur.io, mark@harmstone.com, clm@fb.com, wqu@suse.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-team@meta.com Subject: Re: [PATCH 2/2] btrfs: prevent direct reclaim during compressed readahead Message-ID: References: <20260320073445.80218-1-jp.kobryn@linux.dev> <20260320073445.80218-3-jp.kobryn@linux.dev> 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: <20260320073445.80218-3-jp.kobryn@linux.dev> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Fri, Mar 20, 2026 at 12:34:45AM -0700, JP Kobryn (Meta) wrote: > Prevent direct reclaim during compressed readahead. This completely fails to explain why you want that.