From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 3/5] xfs: prevent extsize alignment from exceeding maximum extent size
Date: Tue, 25 Jan 2011 10:32:18 +1100 [thread overview]
Message-ID: <20110124233218.GC11040@dastard> (raw)
In-Reply-To: <20110124090458.GD26744@infradead.org>
On Mon, Jan 24, 2011 at 04:04:59AM -0500, Christoph Hellwig wrote:
> > + /*
> > + * make sure we don't exceed a single
> > + * extent length when we align the
> > + * extent by reducing length we are
> > + * going to allocate by the maximum
> > + * amount extent size aligment may
> > + * require.
> > + alen = (xfs_extlen_t)XFS_FILBLKS_MIN(
> > + len,
> > + MAXEXTLEN - (2 * extsz - 1));
> > + */
>
> This essentially just adds a comment, given that the new code is inside
> the bracing. Also the xfs_extlen_t cast seems pointless. The C type
> promotion rules do just fine for going down from a 64bit type to a 32bit
> one, as long as the results fit into the latter - which they always do
> here.
Argh, forgot to refresh the patch after doing some bug hunting.
I'll fix it and retest before I repost it.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2011-01-24 23:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-19 4:29 [PATCH 0/5] xfs: various 2.6.38 candidate bug fixes Dave Chinner
2011-01-19 4:29 ` [PATCH 1/5] xfs: speculative delayed allocation uses rounddown_power_of_2 badly Dave Chinner
2011-01-24 8:59 ` Christoph Hellwig
2011-01-19 4:29 ` [PATCH 2/5] xfs: limit extent length for allocation to AG size Dave Chinner
2011-01-24 9:02 ` Christoph Hellwig
2011-01-24 23:31 ` Dave Chinner
2011-01-19 4:29 ` [PATCH 3/5] xfs: prevent extsize alignment from exceeding maximum extent size Dave Chinner
2011-01-24 9:04 ` Christoph Hellwig
2011-01-24 23:32 ` Dave Chinner [this message]
2011-01-19 4:29 ` [PATCH 4/5] xfs: limit extsize to size of AGs and/or MAXEXTLEN Dave Chinner
2011-01-24 9:06 ` Christoph Hellwig
2011-01-24 23:37 ` Dave Chinner
2011-01-19 4:30 ` [PATCH 5/5] xfs: handle CIl transaction commit failures correctly Dave Chinner
2011-01-24 9:12 ` Christoph Hellwig
2011-01-24 23:42 ` Dave Chinner
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