btrfs_init_global_block_rsv 1859 fs/btrfs/block-group.c 	btrfs_init_global_block_rsv(info);
btrfs_init_global_block_rsv   80 fs/btrfs/block-rsv.h void btrfs_init_global_block_rsv(struct btrfs_fs_info *fs_info);