linux-ext4 - Re: Maximum number of directories

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Message-ID: <CAD6i1fKHDP3m8EQZVaY-3VQ+6kh5=Bv7SQhLozJJEb7UJ5q=VQ@mail.gmail.com>
Date:	Mon, 4 Feb 2013 18:49:54 +0530
From:	Prashant Shah <pshah.mumbai@...il.com>
To:	Tvrtko Ursulin <tvrtko.ursulin@...lan.co.uk>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Maximum number of directories

Hi,

On Mon, Feb 4, 2013 at 4:25 PM, Tvrtko Ursulin
<tvrtko.ursulin@...lan.co.uk> wrote:

> I was creating such a (crazy?) tree and hit -ENOSPC at ~31 million directories
> created in total with df showing only 40% use:

> Inode count:              29868032
> Free inodes:              29848131

Since, each directory will use a inode entry, there is some mismatch
with ~31 million directories and 19901 inodes in use. The inode usage
count should be much larger. You have max 29 million inodes available
- so max can be 29 million directories.

Try $blk

Regards.
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