ro_block_group_mutex 2048 fs/btrfs/block-group.c mutex_lock(&fs_info->ro_block_group_mutex); ro_block_group_mutex 2052 fs/btrfs/block-group.c mutex_unlock(&fs_info->ro_block_group_mutex); ro_block_group_mutex 2094 fs/btrfs/block-group.c mutex_unlock(&fs_info->ro_block_group_mutex); ro_block_group_mutex 634 fs/btrfs/ctree.h struct mutex ro_block_group_mutex; ro_block_group_mutex 2747 fs/btrfs/disk-io.c mutex_init(&fs_info->ro_block_group_mutex); ro_block_group_mutex 2025 fs/btrfs/transaction.c mutex_lock(&fs_info->ro_block_group_mutex); ro_block_group_mutex 2029 fs/btrfs/transaction.c mutex_unlock(&fs_info->ro_block_group_mutex);