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From: "Darrick J. Wong" <djwong@kernel.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Carlos Maiolino <cem@kernel.org>, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 07/10] xfs: improve the calling convention for the xlog_write helpers
Date: Tue, 4 Nov 2025 15:40:09 -0800	[thread overview]
Message-ID: <20251104234009.GQ196370@frogsfrogsfrogs> (raw)
In-Reply-To: <20251103104658.GB9158@lst.de>

On Mon, Nov 03, 2025 at 11:46:58AM +0100, Christoph Hellwig wrote:
> On Fri, Oct 31, 2025 at 08:26:32PM -0700, Darrick J. Wong wrote:
> > > $ size fs/xfs/xfs_log.o*
> > >    text	   data	    bss	    dec	    hex	filename
> > >   26330	   1292	      8	  27630	   6bee	fs/xfs/xfs_log.o
> > >   26158	   1292	      8	  27458	   6b42	fs/xfs/xfs_log.o.old
> > 
> > Um... assuming xfs_log.o is the post-patch object file, this shows the
> > text size going up by 172 bytes, right?
> 
> That one does.  I was pretty sure it was the other way around, so І
> re-run this with the current tree:
> 
> $ size fs/xfs/xfs_log.o*
>    text	   data	    bss	    dec	    hex	filename
>   29300	   1730	    176	  31206	   79e6	fs/xfs/xfs_log.o
>   29160	   1730	    176	  31066	   795a	fs/xfs/xfs_log.o.old
> 
> but yes, this grows the text size somewhat unexpectedly.
> 
> I still like the new code, but I guess this now counts as a pessimization :(

"Cleaning up the method signatures is worth 140 bytes" :)

--D

  reply	other threads:[~2025-11-04 23:40 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-30 14:49 cleanup log item formatting v2 Christoph Hellwig
2025-10-30 14:49 ` [PATCH 01/10] xfs: add a xlog_write_one_vec helper Christoph Hellwig
2025-10-31 23:59   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 02/10] xfs: set lv_bytes in xlog_write_one_vec Christoph Hellwig
2025-11-01  0:04   ` Darrick J. Wong
2025-11-03 10:43     ` Christoph Hellwig
2025-11-04 23:39       ` Darrick J. Wong
2025-11-05 13:27         ` Christoph Hellwig
2025-11-05 22:13       ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 03/10] xfs: improve the ->iop_format interface Christoph Hellwig
2025-11-01  0:15   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 04/10] xfs: move struct xfs_log_iovec to xfs_log_priv.h Christoph Hellwig
2025-11-01  1:16   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 05/10] xfs: move struct xfs_log_vec " Christoph Hellwig
2025-11-01  1:16   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 06/10] xfs: regularize iclog space accounting in xlog_write_partial Christoph Hellwig
2025-11-04 23:53   ` Darrick J. Wong
2025-11-05 13:27     ` Christoph Hellwig
2025-10-30 14:49 ` [PATCH 07/10] xfs: improve the calling convention for the xlog_write helpers Christoph Hellwig
2025-11-01  3:26   ` Darrick J. Wong
2025-11-03 10:46     ` Christoph Hellwig
2025-11-04 23:40       ` Darrick J. Wong [this message]
2025-11-05 13:28         ` Christoph Hellwig
2025-10-30 14:49 ` [PATCH 08/10] xfs: add a xlog_write_space_left helper Christoph Hellwig
2025-11-01  3:27   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 09/10] xfs: improve the iclog space assert in xlog_write_iovec Christoph Hellwig
2025-11-04 23:45   ` Darrick J. Wong
2025-10-30 14:49 ` [PATCH 10/10] xfs: factor out a xlog_write_space_advance helper Christoph Hellwig
2025-11-04 23:46   ` Darrick J. Wong
  -- strict thread matches above, loose matches on Subject: below --
2025-11-12 12:14 cleanup log item formatting v3 Christoph Hellwig
2025-11-12 12:14 ` [PATCH 07/10] xfs: improve the calling convention for the xlog_write helpers Christoph Hellwig
2025-11-14 16:56   ` Darrick J. Wong

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