btrfs: zoned: finish fully written block group

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If we have written to the zone capacity, the device automatically
deactivates the zone. Sync up block group side (the active BG list and
zone_is_active flag) with it.

We need to do it both on data BGs and metadata BGs. On data side, we add a
hook to btrfs_finish_ordered_io(). On metadata side, we use
end_extent_buffer_writeback().

To reduce excess lookup of a block group, we mark the last extent buffer in
a block group with EXTENT_BUFFER_ZONE_FINISH flag. This cannot be done for
data (ordered_extent), because the address may change due to
REQ_OP_ZONE_APPEND.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Naohiro Aota 2021-08-19 21:19:23 +09:00 • committed by David Sterba

parent a85f05e59b

commit be1a1d7a5d

5 changed files with 70 additions and 2 deletions

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10

fs/btrfs/extent_io.c

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1

fs/btrfs/extent_io.h

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6

fs/btrfs/inode.c

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50

fs/btrfs/zoned.c

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5

fs/btrfs/zoned.h

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