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From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "Darrick J . Wong" <darrick.wong@oracle.com>,
	Damien Le Moal <Damien.LeMoal@wdc.com>,
	Andreas Gruenbacher <agruenba@redhat.com>,
	linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/12] iomap: warn on inline maps in iomap_writepage_map
Date: Wed, 16 Oct 2019 09:08:28 +1100	[thread overview]
Message-ID: <20191015220828.GD16973@dread.disaster.area> (raw)
In-Reply-To: <20191015154345.13052-11-hch@lst.de>

On Tue, Oct 15, 2019 at 05:43:43PM +0200, Christoph Hellwig wrote:
> And inline mapping should never mark the page dirty and thus never end up
> in writepages.  Add a check for that condition and warn if it happens.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
>  fs/iomap/buffered-io.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
> index 00af08006cd3..76e72576f307 100644
> --- a/fs/iomap/buffered-io.c
> +++ b/fs/iomap/buffered-io.c
> @@ -1421,6 +1421,8 @@ iomap_writepage_map(struct iomap_writepage_ctx *wpc,
>  		error = wpc->ops->map_blocks(wpc, inode, file_offset);
>  		if (error)
>  			break;
> +		if (WARN_ON_ONCE(wpc->iomap.type == IOMAP_INLINE))
> +			continue;
>  		if (wpc->iomap.type == IOMAP_HOLE)
>  			continue;
>  		iomap_add_to_ioend(inode, file_offset, page, iop, wpc, wbc,

looks fine.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
-- 
Dave Chinner
david@fromorbit.com

  reply	other threads:[~2019-10-15 22:08 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-15 15:43 lift the xfs writepage code into iomap v7 Christoph Hellwig
2019-10-15 15:43 ` [PATCH 01/12] xfs: initialize iomap->flags in xfs_bmbt_to_iomap Christoph Hellwig
2019-10-15 18:00   ` Darrick J. Wong
2019-10-15 21:20   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 02/12] xfs: set IOMAP_F_NEW more carefully Christoph Hellwig
2019-10-15 18:01   ` Darrick J. Wong
2019-10-15 21:21   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 03/12] xfs: use a struct iomap in xfs_writepage_ctx Christoph Hellwig
2019-10-15 21:23   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 04/12] xfs: refactor the ioend merging code Christoph Hellwig
2019-10-15 17:56   ` Darrick J. Wong
2019-10-15 17:59     ` Christoph Hellwig
2019-10-15 21:26   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 05/12] xfs: turn io_append_trans into an io_private void pointer Christoph Hellwig
2019-10-15 18:02   ` Darrick J. Wong
2019-10-15 21:28   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 06/12] xfs: remove the fork fields in the writepage_ctx and ioend Christoph Hellwig
2019-10-15 18:05   ` Darrick J. Wong
2019-10-15 21:31   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 07/12] iomap: zero newly allocated mapped blocks Christoph Hellwig
2019-10-15 21:32   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 08/12] iomap: lift the xfs readpage / readpages tracing to iomap Christoph Hellwig
2019-10-15 18:06   ` Darrick J. Wong
2019-10-15 21:35   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 09/12] iomap: lift the xfs writeback code " Christoph Hellwig
2019-10-15 18:40   ` Darrick J. Wong
2019-10-16  7:43     ` Christoph Hellwig
2019-10-15 22:07   ` Dave Chinner
2019-10-16  5:09     ` Darrick J. Wong
2019-10-16  7:48     ` Christoph Hellwig
2019-10-16 12:08       ` Brian Foster
2019-10-16  8:10     ` Christoph Hellwig
2019-10-15 15:43 ` [PATCH 10/12] iomap: warn on inline maps in iomap_writepage_map Christoph Hellwig
2019-10-15 22:08   ` Dave Chinner [this message]
2019-10-15 15:43 ` [PATCH 11/12] iomap: move struct iomap_page out of iomap.h Christoph Hellwig
2019-10-15 22:09   ` Dave Chinner
2019-10-15 15:43 ` [PATCH 12/12] iomap: cleanup iomap_ioend_compare Christoph Hellwig
2019-10-15 17:57   ` Darrick J. Wong
2019-10-15 22:10   ` Dave Chinner
  -- strict thread matches above, loose matches on Subject: below --
2019-07-22  9:50 lift the xfs writepage code into iomap v3 Christoph Hellwig
2019-07-22  9:50 ` [PATCH 10/12] iomap: warn on inline maps in iomap_writepage_map Christoph Hellwig

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