From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH] Doc fix: ext2 can only have 32,000 subdirs, not 32,768. Date: Sat, 30 May 2009 13:37:24 +0200 Message-ID: <20090530113724.GA1444@ucw.cz> References: <63a2e74f0905181213r54a2d8b2tb7dcecd177d474c2@mail.gmail.com> <20090527172045.f33b0b49.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Michael Shields , rdunlap@xenotime.net, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, trivial@kernel.org To: Andrew Morton Return-path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:58490 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753639AbZE3Lhb (ORCPT ); Sat, 30 May 2009 07:37:31 -0400 Content-Disposition: inline In-Reply-To: <20090527172045.f33b0b49.akpm@linux-foundation.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed 2009-05-27 17:20:45, Andrew Morton wrote: > On Mon, 18 May 2009 12:13:51 -0700 > Michael Shields wrote: > > > ext2.txt says that dirs can have 32,768 subdirs, but the actual value > > of EXT2_LINK_MAX is 32000. > > ext3 is the same, but the doc does not mention it. __One of ext4's > > features is to "fix 32000 subdirectory limit". > > > > --- linux-2.6.29.3/Documentation/filesystems/ext2.txt.orig 2009-05-08 > > 15:47:21.000000000 -0700 > > +++ linux-2.6.29.3/Documentation/filesystems/ext2.txt 2009-05-18 > > 12:03:58.000000000 -0700 > > @@ -322,7 +322,7 @@ an upper limit on the block size imposed > > __so 8kB blocks are only allowed on Alpha systems (and other architectures > > __which support larger pages). > > > > -There is an upper limit of 32768 subdirectories in a single directory. > > +There is an upper limit of 32000 subdirectories in a single directory. > > > > __There is a "soft" upper limit of about 10-15k files in a single directory > > __with the current linear linked-list directory implementation. __This limit > > -- Maybe it would be better to increase EXT2_LINK_MAX to fit the docs? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html