From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@infradead.org>, xfs@oss.sgi.com
Subject: Re: [PATCH 1/4] xfs: make i_flags and unsigned long
Date: Wed, 19 Oct 2011 04:57:57 -0400 [thread overview]
Message-ID: <20111019085757.GA6708@infradead.org> (raw)
In-Reply-To: <20111019003047.GA21338@dastard>
On Wed, Oct 19, 2011 at 11:30:47AM +1100, Dave Chinner wrote:
> On Tue, Oct 18, 2011 at 04:13:05PM -0400, Christoph Hellwig wrote:
> > To be used for bit wakeup i_flags needs to be an unsigned long or we'll
> > run into trouble on big endian systems. Beause of the 1-byte i_update
> > field right after it this actually causes a fairly large size increase
> > on it's own (4 or 7 bytes), but that increase will be more than offset
> > by the next two patches.
>
> You could always make the i_update_core boolean a flag bit, and that
> growth will also go away. Regardless:
I could. Then again I plan to kill it for 3.3, so re-arranging the
deck charis now might not be all that useful.
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next prev parent reply other threads:[~2011-10-19 8:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-18 20:13 [PATCH 0/4] inode diet, part1 Christoph Hellwig
2011-10-18 20:13 ` [PATCH 1/4] xfs: make i_flags and unsigned long Christoph Hellwig
2011-10-19 0:30 ` Dave Chinner
2011-10-19 8:57 ` Christoph Hellwig [this message]
2011-10-18 20:13 ` [PATCH 2/4] xfs: replace i_flock with a sleeping bitlock Christoph Hellwig
2011-10-19 0:42 ` Dave Chinner
2011-10-19 9:01 ` Christoph Hellwig
2011-10-18 20:13 ` [PATCH 3/4] xfs: replace i_pin_wait with a bit waitqueue Christoph Hellwig
2011-10-19 0:50 ` Dave Chinner
2011-10-18 20:13 ` [PATCH 4/4] xfs: remove the unused dm_attrs structure Christoph Hellwig
2011-10-19 0:50 ` Dave Chinner
-- strict thread matches above, loose matches on Subject: below --
2011-10-19 18:23 [PATCH 0/4] inode diet, part1 V2 Christoph Hellwig
2011-10-19 18:23 ` [PATCH 1/4] xfs: make i_flags and unsigned long Christoph Hellwig
2011-10-26 21:07 ` Alex Elder
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