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btrfs-progs: chunk-recover: use btrfs_bg_type_to_nparity in btrfs_calc_stripe_index

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Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-10-07 00:08:13 +02:00
parent a5d4fff0df
commit daa08f42c9
1 changed files with 5 additions and 7 deletions
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12
cmds/rescue-chunk-recover.c
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@ -1657,13 +1657,11 @@ static int btrfs_calc_stripe_index(struct chunk_record *chunk, u64 logical)
} else if (chunk->type_flags & BTRFS_BLOCK_GROUP_RAID10) { } else if (chunk->type_flags & BTRFS_BLOCK_GROUP_RAID10) {
index = stripe_nr % (chunk->num_stripes / chunk->sub_stripes); index = stripe_nr % (chunk->num_stripes / chunk->sub_stripes);
index *= chunk->sub_stripes; index *= chunk->sub_stripes;
} else if (chunk->type_flags & BTRFS_BLOCK_GROUP_RAID5) { } else if (chunk->type_flags & BTRFS_BLOCK_GROUP_RAID56_MASK) {
nr_data_stripes = chunk->num_stripes - 1; int parity;
index = stripe_nr % nr_data_stripes;
stripe_nr /= nr_data_stripes; parity = btrfs_bg_type_to_nparity(chunk->type_flags);
index = (index + stripe_nr) % chunk->num_stripes; nr_data_stripes = chunk->num_stripes - parity;
} else if (chunk->type_flags & BTRFS_BLOCK_GROUP_RAID6) {
nr_data_stripes = chunk->num_stripes - 2;
index = stripe_nr % nr_data_stripes; index = stripe_nr % nr_data_stripes;
stripe_nr /= nr_data_stripes; stripe_nr /= nr_data_stripes;
index = (index + stripe_nr) % chunk->num_stripes; index = (index + stripe_nr) % chunk->num_stripes;