From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
Chandan Babu R <chandan.babu@oracle.com>,
Dave Chinner <david@fromorbit.com>,
"open list:XFS FILESYSTEM" <linux-xfs@vger.kernel.org>
Subject: Re: [PATCH 7/8] xfs: fix xfs_bmap_add_extent_delay_real for partial conversions
Date: Wed, 10 Apr 2024 06:04:17 +0200 [thread overview]
Message-ID: <20240410040417.GA2085@lst.de> (raw)
In-Reply-To: <20240409231645.GK6390@frogsfrogsfrogs>
On Tue, Apr 09, 2024 at 04:16:45PM -0700, Darrick J. Wong wrote:
> On Mon, Apr 08, 2024 at 04:54:53PM +0200, Christoph Hellwig wrote:
> > xfs_bmap_add_extent_delay_real takes parts or all of a delalloc extent
> > and converts them to a real extent. It is written to deal with any
> > potential overlap of the to be converted range with the delalloc extent,
> > but it turns out that currently only converting the entire extents, or a
> > part starting at the beginning is actually exercised, as the only caller
> > always tries to convert the entire delalloc extent, and either succeeds
> > or at least progresses partially from the start.
> >
> > If it only converts a tiny part of a delalloc extent, the indirect block
> > calculation for the new delalloc extent (da_new) might be equivalent to that
> > of the existing delalloc extent (da_new). If this extent conversion now
>
> da_old?
Yes.
next prev parent reply other threads:[~2024-04-10 4:04 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-08 14:54 RFC: extended version of the xfs_bmapi_write retval fix Christoph Hellwig
2024-04-08 14:54 ` [PATCH 1/8] xfs: fix error returns from xfs_bmapi_write Christoph Hellwig
2024-04-09 23:19 ` Darrick J. Wong
2024-04-10 4:02 ` Christoph Hellwig
2024-04-08 14:54 ` [PATCH 2/8] xfs: remove the unusued tmp_logflags variable in xfs_bmapi_allocate Christoph Hellwig
2024-04-09 23:17 ` Darrick J. Wong
2024-04-08 14:54 ` [PATCH 3/8] xfs: lifr a xfs_valid_startblock into xfs_bmapi_allocate Christoph Hellwig
2024-04-09 23:17 ` Darrick J. Wong
2024-04-08 14:54 ` [PATCH 4/8] xfs: don't open code XFS_FILBLKS_MIN in xfs_bmapi_write Christoph Hellwig
2024-04-09 23:17 ` Darrick J. Wong
2024-04-08 14:54 ` [PATCH 5/8] xfs: pass the actual offset and len to allocate to xfs_bmapi_allocate Christoph Hellwig
2024-04-09 23:20 ` Darrick J. Wong
2024-04-10 4:03 ` Christoph Hellwig
2024-04-08 14:54 ` [PATCH 6/8] xfs: remove the xfs_iext_peek_prev_extent call in xfs_bmapi_allocate Christoph Hellwig
2024-04-09 23:16 ` Darrick J. Wong
2024-04-08 14:54 ` [PATCH 7/8] xfs: fix xfs_bmap_add_extent_delay_real for partial conversions Christoph Hellwig
2024-04-09 23:16 ` Darrick J. Wong
2024-04-10 4:04 ` Christoph Hellwig [this message]
2024-04-08 14:54 ` [PATCH 8/8] xfs: do not allocate the entire delalloc extent in xfs_bmapi_write Christoph Hellwig
2024-04-09 23:16 ` Darrick J. Wong
2024-04-10 4:07 ` Christoph Hellwig
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