linux-toradex.git/fs/btrfs/raid-stripe-tree.h, branch v6.7-rc1

btrfs: zoned: support RAID0/1/10 on top of raid stripe tree

2023-10-12T14:44:09+00:00

When we have a raid-stripe-tree, we can do RAID0/1/10 on zoned devices
for data block groups. For metadata block groups, we don't actually
need anything special, as all metadata I/O is protected by the
btrfs_zoned_meta_io_lock() already.

Signed-off-by: Johannes Thumshirn 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: lookup physical address from stripe extent

2023-10-12T14:44:09+00:00

Lookup the physical address from the raid stripe tree when a read on an
RAID volume formatted with the raid stripe tree was attempted.

Signed-off-by: Johannes Thumshirn 
Signed-off-by: David Sterba

btrfs: delete stripe extent on extent deletion

2023-10-12T14:44:09+00:00

As each stripe extent is tied to an extent item, delete the stripe extent
once the corresponding extent item is deleted.

Signed-off-by: Johannes Thumshirn 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: add support for inserting raid stripe extents

2023-10-12T14:44:09+00:00

Add support for inserting stripe extents into the raid stripe tree on
completion of every write that needs an extra logical-to-physical
translation when using RAID.

Inserting the stripe extents happens after the data I/O has completed,
this is done to

  a) support zone-append and
  b) rule out the possibility of a RAID-write-hole.

Signed-off-by: Johannes Thumshirn 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba