From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qa0-f54.google.com (mail-qa0-f54.google.com [209.85.216.54]) by kanga.kvack.org (Postfix) with ESMTP id BB54F6B003A for ; Sat, 15 Mar 2014 05:25:01 -0400 (EDT) Received: by mail-qa0-f54.google.com with SMTP id w8so3473666qac.41 for ; Sat, 15 Mar 2014 02:25:01 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org. [198.137.202.9]) by mx.google.com with ESMTPS id y69si4941867qgd.62.2014.03.15.02.25.00 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 15 Mar 2014 02:25:01 -0700 (PDT) Date: Sat, 15 Mar 2014 02:24:55 -0700 From: Christoph Hellwig Subject: Re: [PATCH] readahead.2: don't claim the call blocks until all data has been read Message-ID: <20140315092455.GA6018@infradead.org> References: <1394812471-9693-1-git-send-email-psusi@ubuntu.com> <532417CA.1040300@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <532417CA.1040300@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: "Michael Kerrisk (man-pages)" Cc: Phillip Susi , linux-man@vger.kernel.org, linux-mm@kvack.org, linux-ext4@vger.kernel.org, Corrado Zoccolo , "Gregory P. Smith" , Zhu Yanhai On Sat, Mar 15, 2014 at 10:05:14AM +0100, Michael Kerrisk (man-pages) wrote: > However, it may block while it reads > the filesystem metadata needed to locate the requested blocks. > This occurs frequently with ext[234] on large files using indi??? > rect blocks instead of extents, giving the appearence that the > call blocks until the requested data has been read. > > Okay? The part above is something that should be in the BUGS section. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org