linux-ext4 - Re: a (documented) way to get the Ext2+ filesystem size?

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Message-ID: <86mxf7yirb.fsf@gray.siamics.net>
Date:	Thu, 18 Aug 2011 01:50:48 +0700
From:	Ivan Shmakov <ivan@...y.siamics.net>
To:	linux-ext4@...r.kernel.org
Subject: Re: a (documented) way to get the Ext2+ filesystem size?

>>>>> Ted Ts'o <tytso@....edu> writes:
>>>>> On Tue, Aug 16, 2011 at 06:37:23PM +0700, Ivan Shmakov wrote:

 >> How do I get the Ext2+ filesystem size (in blocks)?

 > I assume you need the exact numbers, so you can't use statfs(2)?
 > What are you using it for?

	The intent is to process a filesystem image, not a mounted
	filesystem.  It's my understanding that I cannot use neither
	statfs(2) nor POSIX' statvfs(2) in this case.

	The code I've posted earlier is used in my e2dis [1–3] project.

[1] http://article.gmane.org/gmane.linux.debian.devel.general/164488
[2] http://article.gmane.org/gmane.comp.file-systems.ext4/27269
[3] https://gitorious.org/e2dis/

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