diff options
| author | Qu Wenruo <wqu@suse.com> | 2022-05-13 11:34:30 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 18:45:36 +0300 |
| commit | 0b30f719451ebbf313cdb444a27b00c10cf6e8a5 (patch) | |
| tree | d5214a96a9d1b31e1d278699d8c29b35dd0246c2 /fs/btrfs/raid56.c | |
| parent | 6dead96c1a1e091e78ee80a2484279c3861c60d8 (diff) | |
| download | linux-0b30f719451ebbf313cdb444a27b00c10cf6e8a5.tar.xz | |
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.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index f002334d244a..0f0368e63e5a 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -922,7 +922,6 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_fs_info *fs_info, const unsigned int stripe_nsectors = stripe_len >> fs_info->sectorsize_bits; const unsigned int num_sectors = stripe_nsectors * real_stripes; struct btrfs_raid_bio *rbio; - int nr_data = 0; void *p; ASSERT(IS_ALIGNED(stripe_len, PAGE_SIZE)); @@ -976,14 +975,9 @@ static struct btrfs_raid_bio *alloc_rbio(struct btrfs_fs_info *fs_info, CONSUME_ALLOC(rbio->finish_pointers, real_stripes); #undef CONSUME_ALLOC - if (bioc->map_type & BTRFS_BLOCK_GROUP_RAID5) - nr_data = real_stripes - 1; - else if (bioc->map_type & BTRFS_BLOCK_GROUP_RAID6) - nr_data = real_stripes - 2; - else - BUG(); + ASSERT(btrfs_nr_parity_stripes(bioc->map_type)); + rbio->nr_data = real_stripes - btrfs_nr_parity_stripes(bioc->map_type); - rbio->nr_data = nr_data; return rbio; } |