linux-ext4 - Difference in statvfs(2) block count with ext2 and very recent Linux 3.2.0 kernels

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Message-ID: <20111116095418.GA8054@amd.home.annexia.org>
Date:	Wed, 16 Nov 2011 09:54:18 +0000
From:	"Richard W.M. Jones" <rjones@...hat.com>
To:	linux-ext4@...r.kernel.org
Cc:	meyering@...hat.com
Subject: Difference in statvfs(2) block count with ext2 and very recent Linux
 3.2.0 kernels

Hi,

We do some automated testing of the kernel and ext2/3/4 filesystems,
and noticed that the block count returned by statvfs(2) for plain
*ext2* filesystems has changed with the latest 3.2.0rc1 kernel.

This is probably just because of more accurate block accounting, but I
just wanted to check that it isn't a bug.

This posting contains the numbers and a reproducer:

  https://www.redhat.com/archives/libguestfs/2011-November/msg00051.html

Rich.

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