Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752763AbdDDHKh (ORCPT ); Tue, 4 Apr 2017 03:10:37 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:49808 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751151AbdDDHKg (ORCPT ); Tue, 4 Apr 2017 03:10:36 -0400 Date: Tue, 4 Apr 2017 00:10:33 -0700 From: Christoph Hellwig To: NeilBrown Cc: Jens Axboe , linux-block@vger.kernel.org, linux-mm@kvack.org, LKML Subject: Re: [PATCH] loop: Add PF_LESS_THROTTLE to block/loop device thread. Message-ID: <20170404071033.GA25855@infradead.org> References: <871staffus.fsf@notabene.neil.brown.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <871staffus.fsf@notabene.neil.brown.name> User-Agent: Mutt/1.7.1 (2016-10-04) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 168 Lines: 6 Looks fine, Reviewed-by: Christoph Hellwig But if you actually care about performance in any way I'd suggest to use the loop device in direct I/O mode..