btrfs: simplify extent map splitting and rename split_zoned_em

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split_zoned_em is only ever asked to split out the beginning of an extent
map.  Change it to only take a len to split out instead of a pre and post
region.

Also rename the function to split_extent_map as there is nothing zoned
device specific about it.

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 14:19:54 +09:00 • committed by David Sterba

parent f0792b792d

commit 2e38a84bc6

1 changed files with 26 additions and 51 deletions

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fs/btrfs/inode.c

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