Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756303Ab0DUUCs (ORCPT ); Wed, 21 Apr 2010 16:02:48 -0400 Received: from mail2.shareable.org ([80.68.89.115]:45894 "EHLO mail2.shareable.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756180Ab0DUUCp (ORCPT ); Wed, 21 Apr 2010 16:02:45 -0400 Date: Wed, 21 Apr 2010 21:02:43 +0100 From: Jamie Lokier To: Evgeniy Polyakov Cc: Phillip Susi , linux-fsdevel@vger.kernel.org, Linux-kernel Subject: Re: readahead on directories Message-ID: <20100421200243.GU27575@shareable.org> References: <4BCC7C05.8000803@cfl.rr.com> <20100421004434.GA27420@shareable.org> <4BCF123C.6010400@cfl.rr.com> <20100421161211.GC27575@shareable.org> <20100421183853.GA14897@ioremap.net> <20100421185124.GM27575@shareable.org> <20100421185657.GA21249@ioremap.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100421185657.GA21249@ioremap.net> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 699 Lines: 18 Evgeniy Polyakov wrote: > > But if it does, go on, try FIEMAP and blockdev reading, you know you > > want to :-) > > Well, it requires substantial underlying fs knowledge and is not simple > and, well, appropriate to do in some cases. FIEMAP might not be the answer, but what part of it requires fs knowledge? It's supposed to be fs-independent. I agree it's not always appropriate to use, and I don't know if it would be effective anyway. -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/