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btrfs: use raid_attr table for btrfs_bg_type_to_factor

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The factor is the number of copies.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-05-17 11:43:31 +02:00
parent 6079e12cdb
commit 44b28adafd
1 changed files with 3 additions and 4 deletions
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7
fs/btrfs/volumes.c
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@ -7586,10 +7586,9 @@ void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info)
*/
int btrfs_bg_type_to_factor(u64 flags)
{
if (flags & (BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID1 |
BTRFS_BLOCK_GROUP_RAID10))
return 2;
return 1;
const int index = btrfs_bg_flags_to_raid_index(flags);
return btrfs_raid_array[index].ncopies;
}