btrfs: simplify splitting logic in btrfs_extract_ordered_extent

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btrfs_extract_ordered_extent is always used to split an ordered_extent
and extent_map into two parts, so it doesn't need to deal with a three
way split.

Simplify it by only allowing for a single split point, and always split
out the beginning of the extent, as that is what we'll later need to
be able to hold on to a reference to the original ordered_extent that
the first part is split off for submission.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Tested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Sterba <dsterba@suse.com>

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Christoph Hellwig 2023-03-28 14:19:51 +09:00 • committed by David Sterba

parent e44ca71cfe

commit 11d33ab6c1

1 changed files with 13 additions and 16 deletions

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fs/btrfs/inode.c

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