diff options
| author | Qu Wenruo <wqu@suse.com> | 2022-05-13 16:34:30 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 17:45:36 +0200 |
| commit | 0b30f719451ebbf313cdb444a27b00c10cf6e8a5 (patch) | |
| tree | d5214a96a9d1b31e1d278699d8c29b35dd0246c2 /fs/btrfs/raid56.h | |
| parent | 6dead96c1a1e091e78ee80a2484279c3861c60d8 (diff) | |
btrfs: use btrfs_raid_array to calculate number of parity stripes
Use the raid table instead of hard coded values and rename the helper as
it is exported. This could make later extension on RAID56 based
profiles easier.
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>
Diffstat (limited to 'fs/btrfs/raid56.h')
| -rw-r--r-- | fs/btrfs/raid56.h | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/fs/btrfs/raid56.h b/fs/btrfs/raid56.h index 3b22657ca857..c73bceb2b461 100644 --- a/fs/btrfs/raid56.h +++ b/fs/btrfs/raid56.h @@ -155,19 +155,9 @@ struct raid56_bio_trace_info { u8 stripe_nr; }; -static inline int nr_parity_stripes(const struct map_lookup *map) -{ - if (map->type & BTRFS_BLOCK_GROUP_RAID5) - return 1; - else if (map->type & BTRFS_BLOCK_GROUP_RAID6) - return 2; - else - return 0; -} - static inline int nr_data_stripes(const struct map_lookup *map) { - return map->num_stripes - nr_parity_stripes(map); + return map->num_stripes - btrfs_nr_parity_stripes(map->type); } #define RAID5_P_STRIPE ((u64)-2) |