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btrfs-progs: use raid attr table in group_profile_max_safe_loss 

The helper open codes what we already have in the raid attr table, so
use it. We assume a valid flags so there's no error value.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-09-07 16:32:55 +02:00
parent 45d034d774
commit a5becbde35
1 changed files with 3 additions and 17 deletions
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20
common/utils.c
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@ -654,23 +654,9 @@ int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
int group_profile_max_safe_loss(u64 flags)
{
switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
case 0: /* single */
case BTRFS_BLOCK_GROUP_DUP:
case BTRFS_BLOCK_GROUP_RAID0:
return 0;
case BTRFS_BLOCK_GROUP_RAID1:
case BTRFS_BLOCK_GROUP_RAID5:
case BTRFS_BLOCK_GROUP_RAID10:
return 1;
case BTRFS_BLOCK_GROUP_RAID6:
case BTRFS_BLOCK_GROUP_RAID1C3:
return 2;
case BTRFS_BLOCK_GROUP_RAID1C4:
return 3;
default:
return -1;
}
const int index = btrfs_bg_flags_to_raid_index(flags);
return btrfs_raid_array[index].tolerated_failures;
}
/*