btrfs: use ncopies from btrfs_raid_array in btrfs_num_copies()

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For all non-RAID56 profiles, we can use btrfs_raid_array[].ncopies
directly, only for RAID5 and RAID6 we need some extra handling as
there's no table value for that.

For RAID10 there's a change from sub_stripes to ncopies. The values are
the same but semantically we want to use number of copies, as this is
what btrfs_num_copies does.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Qu Wenruo 2022-05-13 16:34:31 +08:00 • committed by David Sterba

parent 0b30f71945

commit 6d322b4839

1 changed files with 7 additions and 7 deletions

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fs/btrfs/volumes.c

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