Re: [PATCH 08/14] xfs: convert log grant heads to atomic variables

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On Wed, Dec 01, 2010 at 07:59:20AM -0500, Christoph Hellwig wrote:
> On Mon, Nov 29, 2010 at 12:38:26PM +1100, Dave Chinner wrote:
> > From: Dave Chinner <dchinner@xxxxxxxxxx>
> > 
> > Convert the log grant heads to atomic64_t types in preparation for
> > converting the accounting algorithms to atomic operations. his patch
> > just converts the variables; the algorithmic changes are in a
> > separate patch for clarity.
> > 
> > Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> > ---
> >  fs/xfs/linux-2.6/xfs_trace.h |   18 +++++++------
> >  fs/xfs/xfs_log.c             |   54 +++++++++++++++++++++--------------------
> >  fs/xfs/xfs_log_priv.h        |    4 +-
> >  fs/xfs/xfs_log_recover.c     |    8 +++---
> >  4 files changed, 44 insertions(+), 40 deletions(-)
> > 
> > diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
> > index d2cdc85..68c3bdd 100644
> > --- a/fs/xfs/linux-2.6/xfs_trace.h
> > +++ b/fs/xfs/linux-2.6/xfs_trace.h
> > @@ -768,8 +768,8 @@ DECLARE_EVENT_CLASS(xfs_loggrant_class,
> >  		__field(unsigned int, flags)
> >  		__field(void *, reserveq)
> >  		__field(void *, writeq)
> > -		__field(xfs_lsn_t, grant_reserve_lsn)
> > -		__field(xfs_lsn_t, grant_write_lsn)
> > +		__field(xfs_lsn_t, grant_reserve_head)
> > +		__field(xfs_lsn_t, grant_write_head)
> 
> What about just naming them _head from the beginning?  That would
> be a tad cleaner.  Same for the actual variables in the log, even
> if they change the type here.

Will do.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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