From: David Howells <dhowells@redhat.com>
Subject: Re: Extended file stat: Splitting file- and fs-specific info?
Date: Thu, 10 May 2012 10:23:14 +0100
Message-ID: <14477.1336641794@redhat.com>
References: <73759631-F1E4-4352-9FE6-E9F576F793FB@gmail.com> <20120419140558.17272.74360.stgit@warthog.procyon.org.uk> <16281.1336508382@redhat.com> <20120509002420.GL5091@dastard>
Cc: dhowells@redhat.com, "adilger@dilger.ca" <adilger@dilger.ca>,
        "bfields@fieldses.org" <bfields@fieldses.org>,
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To: Andreas Dilger <aedilger@gmail.com>, Dave Chinner <david@fromorbit.com>
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Andreas Dilger <aedilger@gmail.com> wrote:

> The main question I have about these fields is what the difference is
> between st_blksize and st_alloc_blksize?

I would assume that st_blksize is some ideal I/O size, not the allocation
block size.  Dave Chinner might be able to answer better as he suggested these
I/O information fields.

David