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Commit 9fa02ac7 authored by David Sterba's avatar David Sterba
Browse files

btrfs: use raid_attr table in get_profile_num_devs 



The dev_max constraints are defined in the raid_attr table, use it
instead of open-coding it.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c8bf1b67

fs/btrfs/extent-tree.c

+2 −8
Original line number Diff line number Diff line
@@ -4336,15 +4336,9 @@ static u64 get_profile_num_devs(struct btrfs_fs_info *fs_info, u64 type) 
{

	u64 num_dev;



	if (type & (BTRFS_BLOCK_GROUP_RAID10 |

		    BTRFS_BLOCK_GROUP_RAID0 |

		    BTRFS_BLOCK_GROUP_RAID5 |

		    BTRFS_BLOCK_GROUP_RAID6))

	num_dev = btrfs_raid_array[btrfs_bg_flags_to_raid_index(type)].devs_max;

	if (!num_dev)

		num_dev = fs_info->fs_devices->rw_devices;

	else if (type & BTRFS_BLOCK_GROUP_RAID1)

		num_dev = 2;

	else

		num_dev = 1;	/* DUP or single */



	return num_dev;

}