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btrfs: use raid_attr to get allowed profiles for balance conversion
Iterate over the table and gather all allowed profiles for a given number of devices, instead of open coding. Signed-off-by: David Sterba <dsterba@suse.com>
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parent
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commit
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1 changed files with 5 additions and 9 deletions
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@ -4047,6 +4047,7 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
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u64 num_devices;
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u64 num_devices;
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unsigned seq;
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unsigned seq;
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bool reducing_integrity;
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bool reducing_integrity;
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int i;
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if (btrfs_fs_closing(fs_info) ||
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if (btrfs_fs_closing(fs_info) ||
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atomic_read(&fs_info->balance_pause_req) ||
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atomic_read(&fs_info->balance_pause_req) ||
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@ -4076,16 +4077,11 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
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}
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}
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num_devices = btrfs_num_devices(fs_info);
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num_devices = btrfs_num_devices(fs_info);
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allowed = 0;
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for (i = 0; i < ARRAY_SIZE(btrfs_raid_array); i++)
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if (num_devices >= btrfs_raid_array[i].devs_min)
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allowed |= btrfs_raid_array[i].bg_flag;
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allowed = BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_BLOCK_GROUP_DUP;
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if (num_devices > 1)
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allowed |= (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1);
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if (num_devices >= 2)
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allowed |= BTRFS_BLOCK_GROUP_RAID5;
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if (num_devices >= 3)
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allowed |= BTRFS_BLOCK_GROUP_RAID6;
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if (num_devices > 3)
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allowed |= BTRFS_BLOCK_GROUP_RAID10;
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if (validate_convert_profile(&bctl->data, allowed)) {
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if (validate_convert_profile(&bctl->data, allowed)) {
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int index = btrfs_bg_flags_to_raid_index(bctl->data.target);
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int index = btrfs_bg_flags_to_raid_index(bctl->data.target);
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