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btrfs-progs: use btrfs_bg_type_to_nparity in calc_stripe_length

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Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-10-07 00:37:37 +02:00
parent e3355b43b4
commit 833ce53872
1 changed files with 2 additions and 5 deletions
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7
kernel-shared/volumes.h
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@ -222,12 +222,9 @@ static inline u64 calc_stripe_length(u64 type, u64 length, int num_stripes)
} else if (type & BTRFS_BLOCK_GROUP_RAID10) {
stripe_size = length * 2;
stripe_size /= num_stripes;
} else if (type & BTRFS_BLOCK_GROUP_RAID5) {
} else if (type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
stripe_size = length;
stripe_size /= (num_stripes - 1);
} else if (type & BTRFS_BLOCK_GROUP_RAID6) {
stripe_size = length;
stripe_size /= (num_stripes - 2);
stripe_size /= (num_stripes - btrfs_bg_type_to_nparity(type));
} else {
stripe_size = length;
}