• Chris Mason's avatar
    Btrfs: clear all space_info->full after removing a block group · 283bb197
    Chris Mason authored
    
    
    Btrfs allocates individual extents from block groups, and each
    block group has a specific type.  It may hold metadata, data
    mirrored or striped etc.
    
    When we balance space (btrfs-vol -b) or remove a drive (btrfs-vol -r)
    we free block groups.  Once a block group is freed, the space it was
    using on the device may be available for use by new block groups.
    
    btrfs_remove_block_group was clearing the flag that said
    'our devices are full, don't even try to allocate new block groups',
    but it was only clearing that flag for a specific type of block group.
    
    This commit clears the full flag for all of the types of block groups,
    making it much more likely that we'll be able to balance space when
    the drive is close to full.
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
    283bb197