Extern or forward variable declaration at include/trace/events/btrfs.h, line 13 References: fs/btrfs/btrfs_inode.h, line 49 fs/btrfs/btrfs_inode.h, line 182 fs/btrfs/btrfs_inode.h, line 184 fs/btrfs/delayed-inode.c, line 89 fs/btrfs/delayed-inode.c, line 89 fs/btrfs/delayed-inode.c, line 90 fs/btrfs/delayed-inode.c, line 94 fs/btrfs/delayed-inode.c, line 103 fs/btrfs/delayed-inode.c, line 105 fs/btrfs/delayed-inode.c, line 109 fs/btrfs/delayed-inode.c, line 125 fs/btrfs/delayed-inode.c, line 125 fs/btrfs/delayed-inode.c, line 126 fs/btrfs/delayed-inode.c, line 157 fs/btrfs/disk-io.c, line 3779 fs/btrfs/disk-io.c, line 3779 fs/btrfs/disk-io.c, line 3789 fs/btrfs/disk-io.c, line 3789 fs/btrfs/disk-io.c, line 3792 fs/btrfs/disk-io.c, line 3795 fs/btrfs/disk-io.c, line 3913 fs/btrfs/disk-io.c, line 3913 fs/btrfs/disk-io.c, line 3922 fs/btrfs/disk-io.c, line 3922 fs/btrfs/disk-io.c, line 3925 fs/btrfs/disk-io.c, line 3927 fs/btrfs/disk-io.c, line 3930 fs/btrfs/inode.c, line 4893 fs/btrfs/inode.c, line 4906 fs/btrfs/inode.c, line 4953 fs/btrfs/inode.c, line 4966 fs/btrfs/inode.c, line 4977 fs/btrfs/inode.c, line 4986 fs/btrfs/inode.c, line 8006 fs/btrfs/inode.c, line 8139 fs/btrfs/inode.c, line 8139 fs/btrfs/inode.c, line 8168 fs/btrfs/inode.c, line 8473 fs/btrfs/inode.c, line 8487 fs/btrfs/ioctl.c, line 137 fs/btrfs/ioctl.c, line 186 fs/btrfs/ioctl.c, line 212 fs/btrfs/ordered-data.c, line 691 fs/btrfs/ordered-data.c, line 691 fs/btrfs/ordered-data.c, line 706 fs/btrfs/ordered-data.c, line 706 fs/btrfs/ordered-data.c, line 708 fs/btrfs/ordered-data.c, line 710 fs/btrfs/ordered-data.c, line 728 fs/btrfs/relocation.c, line 1485 fs/btrfs/relocation.c, line 1494 fs/btrfs/relocation.c, line 1505 fs/btrfs/relocation.c, line 1514 include/trace/events/btrfs.h, line 13